./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product34.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_274a46a4-b32b-4e84-9318-7f528fd7def9/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274a46a4-b32b-4e84-9318-7f528fd7def9/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_274a46a4-b32b-4e84-9318-7f528fd7def9/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274a46a4-b32b-4e84-9318-7f528fd7def9/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274a46a4-b32b-4e84-9318-7f528fd7def9/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_274a46a4-b32b-4e84-9318-7f528fd7def9/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 86e7038cbd7079ed991c0d8924416f9d170b15a53536a052f3097e1f394171ef --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:03:44,019 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:03:44,085 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274a46a4-b32b-4e84-9318-7f528fd7def9/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-29 00:03:44,090 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:03:44,090 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:03:44,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:03:44,116 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:03:44,117 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:03:44,117 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:03:44,118 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:03:44,119 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:03:44,119 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:03:44,120 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:03:44,120 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 00:03:44,121 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 00:03:44,121 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 00:03:44,122 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 00:03:44,122 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 00:03:44,123 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 00:03:44,123 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:03:44,124 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 00:03:44,124 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:03:44,125 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:03:44,125 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:03:44,126 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:03:44,126 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 00:03:44,126 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 00:03:44,127 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 00:03:44,127 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:03:44,128 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:03:44,128 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:03:44,129 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 00:03:44,129 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:03:44,129 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:03:44,130 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:03:44,130 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:03:44,130 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:03:44,131 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 00:03:44,131 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_274a46a4-b32b-4e84-9318-7f528fd7def9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274a46a4-b32b-4e84-9318-7f528fd7def9/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86e7038cbd7079ed991c0d8924416f9d170b15a53536a052f3097e1f394171ef [2023-11-29 00:03:44,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:03:44,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:03:44,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:03:44,375 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:03:44,376 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:03:44,377 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274a46a4-b32b-4e84-9318-7f528fd7def9/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c [2023-11-29 00:03:47,101 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:03:47,301 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:03:47,302 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274a46a4-b32b-4e84-9318-7f528fd7def9/sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c [2023-11-29 00:03:47,314 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274a46a4-b32b-4e84-9318-7f528fd7def9/bin/uautomizer-verify-BQ2R08f2Ya/data/f5e8c2483/1c4321ec912c415bbe96ad122e6b6928/FLAGe8123207a [2023-11-29 00:03:47,326 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274a46a4-b32b-4e84-9318-7f528fd7def9/bin/uautomizer-verify-BQ2R08f2Ya/data/f5e8c2483/1c4321ec912c415bbe96ad122e6b6928 [2023-11-29 00:03:47,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:03:47,329 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:03:47,331 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:03:47,331 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:03:47,335 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:03:47,336 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:03:47" (1/1) ... [2023-11-29 00:03:47,337 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@204f6798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:03:47, skipping insertion in model container [2023-11-29 00:03:47,337 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:03:47" (1/1) ... [2023-11-29 00:03:47,381 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:03:47,622 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:03:47,635 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:03:47,644 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-11-29 00:03:47,645 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [87] [2023-11-29 00:03:47,645 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [96] [2023-11-29 00:03:47,646 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [462] [2023-11-29 00:03:47,646 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [563] [2023-11-29 00:03:47,646 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [633] [2023-11-29 00:03:47,646 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [802] [2023-11-29 00:03:47,646 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [851] [2023-11-29 00:03:47,707 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:03:47,726 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:03:47,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:03:47 WrapperNode [2023-11-29 00:03:47,727 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:03:47,728 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:03:47,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:03:47,728 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:03:47,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:03:47" (1/1) ... [2023-11-29 00:03:47,749 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:03:47" (1/1) ... [2023-11-29 00:03:47,776 INFO L138 Inliner]: procedures = 55, calls = 98, calls flagged for inlining = 51, calls inlined = 58, statements flattened = 382 [2023-11-29 00:03:47,777 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:03:47,778 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:03:47,778 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:03:47,778 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:03:47,788 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:03:47" (1/1) ... [2023-11-29 00:03:47,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:03:47" (1/1) ... [2023-11-29 00:03:47,791 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:03:47" (1/1) ... [2023-11-29 00:03:47,807 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 00:03:47,807 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:03:47" (1/1) ... [2023-11-29 00:03:47,808 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:03:47" (1/1) ... [2023-11-29 00:03:47,815 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:03:47" (1/1) ... [2023-11-29 00:03:47,820 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:03:47" (1/1) ... [2023-11-29 00:03:47,822 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:03:47" (1/1) ... [2023-11-29 00:03:47,824 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:03:47" (1/1) ... [2023-11-29 00:03:47,827 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:03:47,828 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:03:47,828 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:03:47,829 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:03:47,830 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:03:47" (1/1) ... [2023-11-29 00:03:47,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:03:47,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274a46a4-b32b-4e84-9318-7f528fd7def9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:03:47,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274a46a4-b32b-4e84-9318-7f528fd7def9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:03:47,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274a46a4-b32b-4e84-9318-7f528fd7def9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 00:03:47,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:03:47,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 00:03:47,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:03:47,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:03:47,968 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:03:47,970 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:03:48,281 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:03:48,294 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:03:48,295 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 00:03:48,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:03:48 BoogieIcfgContainer [2023-11-29 00:03:48,297 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:03:48,298 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 00:03:48,298 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 00:03:48,301 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 00:03:48,302 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 00:03:48,302 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 12:03:47" (1/3) ... [2023-11-29 00:03:48,303 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f262f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 12:03:48, skipping insertion in model container [2023-11-29 00:03:48,304 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 00:03:48,304 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:03:47" (2/3) ... [2023-11-29 00:03:48,304 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f262f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 12:03:48, skipping insertion in model container [2023-11-29 00:03:48,304 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 00:03:48,304 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:03:48" (3/3) ... [2023-11-29 00:03:48,306 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product34.cil.c [2023-11-29 00:03:48,363 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 00:03:48,363 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 00:03:48,363 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 00:03:48,363 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 00:03:48,363 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 00:03:48,363 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 00:03:48,363 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 00:03:48,364 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 00:03:48,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 119 states, 118 states have (on average 1.3644067796610169) internal successors, (161), 118 states have internal predecessors, (161), 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 00:03:48,394 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2023-11-29 00:03:48,394 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 00:03:48,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 00:03:48,401 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:03:48,401 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 00:03:48,401 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 00:03:48,402 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 119 states, 118 states have (on average 1.3644067796610169) internal successors, (161), 118 states have internal predecessors, (161), 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 00:03:48,408 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2023-11-29 00:03:48,408 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 00:03:48,408 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 00:03:48,409 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:03:48,409 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 00:03:48,414 INFO L748 eck$LassoCheckResult]: Stem: 24#$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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 33#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 20#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 93#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; 81#valid_product_returnLabel#1true main_#t~ret51#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 67#L935true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 65#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; 103#__utac_acc__Specification5_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 27#L577-2true [2023-11-29 00:03:48,415 INFO L750 eck$LassoCheckResult]: Loop: 27#L577-2true assume !false; 37#L578true assume test_~splverifierCounter~0#1 < 4; 13#L579true havoc test_#t~nondet33#1;test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 117#L587true assume !(0 != test_~tmp~3#1); 52#L587-2true havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 97#L597true assume !(0 != test_~tmp___0~0#1); 50#L597-2true havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 26#L607true assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet36#1;test_~tmp___1~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 9#L615true assume 0 != test_~tmp___1~0#1; 14#L615-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 99#isPumpRunning_returnLabel#1true __utac_acc__Specification5_spec__2_#t~ret48#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret48#1;havoc __utac_acc__Specification5_spec__2_#t~ret48#1; 75#__utac_acc__Specification5_spec__2_returnLabel#1true havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 86#L650true assume !(0 != ~pumpRunning~0); 66#L650-2true assume !(0 != ~systemActive~0); 83#L657-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1; 53#getWaterLevel_returnLabel#1true __utac_acc__Specification5_spec__3_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret49#1;havoc __utac_acc__Specification5_spec__3_#t~ret49#1; 89#L830true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 114#L830-1true havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 54#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 27#L577-2true [2023-11-29 00:03:48,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:03:48,420 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2023-11-29 00:03:48,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:03:48,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321227644] [2023-11-29 00:03:48,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:03:48,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:03:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:03:48,535 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:03:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:03:48,572 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:03:48,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:03:48,575 INFO L85 PathProgramCache]: Analyzing trace with hash -529130674, now seen corresponding path program 1 times [2023-11-29 00:03:48,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:03:48,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454902703] [2023-11-29 00:03:48,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:03:48,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:03:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:03:48,586 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:03:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:03:48,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:03:48,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:03:48,598 INFO L85 PathProgramCache]: Analyzing trace with hash 900617669, now seen corresponding path program 1 times [2023-11-29 00:03:48,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:03:48,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091256993] [2023-11-29 00:03:48,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:03:48,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:03:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:48,801 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 00:03:48,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:03:48,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091256993] [2023-11-29 00:03:48,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091256993] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:03:48,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:03:48,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:03:48,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997800244] [2023-11-29 00:03:48,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:03:48,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:03:48,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:03:48,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:03:48,972 INFO L87 Difference]: Start difference. First operand has 119 states, 118 states have (on average 1.3644067796610169) internal successors, (161), 118 states have internal predecessors, (161), 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 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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 00:03:49,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:03:49,038 INFO L93 Difference]: Finished difference Result 113 states and 144 transitions. [2023-11-29 00:03:49,040 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 113 states and 144 transitions. [2023-11-29 00:03:49,044 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2023-11-29 00:03:49,049 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 113 states to 103 states and 134 transitions. [2023-11-29 00:03:49,050 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 103 [2023-11-29 00:03:49,051 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 103 [2023-11-29 00:03:49,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 134 transitions. [2023-11-29 00:03:49,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:03:49,052 INFO L218 hiAutomatonCegarLoop]: Abstraction has 103 states and 134 transitions. [2023-11-29 00:03:49,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states and 134 transitions. [2023-11-29 00:03:49,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2023-11-29 00:03:49,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 102 states have internal predecessors, (134), 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 00:03:49,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 134 transitions. [2023-11-29 00:03:49,085 INFO L240 hiAutomatonCegarLoop]: Abstraction has 103 states and 134 transitions. [2023-11-29 00:03:49,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:03:49,090 INFO L428 stractBuchiCegarLoop]: Abstraction has 103 states and 134 transitions. [2023-11-29 00:03:49,090 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 00:03:49,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 103 states and 134 transitions. [2023-11-29 00:03:49,092 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2023-11-29 00:03:49,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 00:03:49,093 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 00:03:49,093 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:03:49,094 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] [2023-11-29 00:03:49,094 INFO L748 eck$LassoCheckResult]: Stem: 284#$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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 285#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 280#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 281#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; 342#valid_product_returnLabel#1 main_#t~ret51#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 330#L935 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 327#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; 328#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 290#L577-2 [2023-11-29 00:03:49,094 INFO L750 eck$LassoCheckResult]: Loop: 290#L577-2 assume !false; 291#L578 assume test_~splverifierCounter~0#1 < 4; 266#L579 havoc test_#t~nondet33#1;test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 267#L587 assume !(0 != test_~tmp~3#1); 297#L587-2 havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 313#L597 assume !(0 != test_~tmp___0~0#1); 312#L597-2 havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 288#L607 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 289#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 260#L615-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 268#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret48#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret48#1;havoc __utac_acc__Specification5_spec__2_#t~ret48#1; 336#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 337#L650 assume !(0 != ~pumpRunning~0); 307#L650-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 329#L682 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 331#processEnvironment__wrappee__base_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__base } true; 258#L682-1 havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true; 283#L657-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1; 314#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret49#1;havoc __utac_acc__Specification5_spec__3_#t~ret49#1; 315#L830 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 346#L830-1 havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 316#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 290#L577-2 [2023-11-29 00:03:49,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:03:49,095 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2023-11-29 00:03:49,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:03:49,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654814503] [2023-11-29 00:03:49,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:03:49,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:03:49,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:03:49,105 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:03:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:03:49,116 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:03:49,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:03:49,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1135450770, now seen corresponding path program 1 times [2023-11-29 00:03:49,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:03:49,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515716650] [2023-11-29 00:03:49,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:03:49,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:03:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:49,141 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 00:03:49,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:03:49,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515716650] [2023-11-29 00:03:49,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515716650] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:03:49,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:03:49,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:03:49,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815968306] [2023-11-29 00:03:49,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:03:49,143 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 00:03:49,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:03:49,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:03:49,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:03:49,144 INFO L87 Difference]: Start difference. First operand 103 states and 134 transitions. cyclomatic complexity: 33 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) [2023-11-29 00:03:49,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:03:49,203 INFO L93 Difference]: Finished difference Result 165 states and 209 transitions. [2023-11-29 00:03:49,203 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 165 states and 209 transitions. [2023-11-29 00:03:49,207 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2023-11-29 00:03:49,209 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 165 states to 165 states and 209 transitions. [2023-11-29 00:03:49,209 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 165 [2023-11-29 00:03:49,210 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 165 [2023-11-29 00:03:49,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 165 states and 209 transitions. [2023-11-29 00:03:49,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:03:49,212 INFO L218 hiAutomatonCegarLoop]: Abstraction has 165 states and 209 transitions. [2023-11-29 00:03:49,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states and 209 transitions. [2023-11-29 00:03:49,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2023-11-29 00:03:49,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 165 states have (on average 1.2666666666666666) internal successors, (209), 164 states have internal predecessors, (209), 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 00:03:49,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 209 transitions. [2023-11-29 00:03:49,225 INFO L240 hiAutomatonCegarLoop]: Abstraction has 165 states and 209 transitions. [2023-11-29 00:03:49,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:03:49,227 INFO L428 stractBuchiCegarLoop]: Abstraction has 165 states and 209 transitions. [2023-11-29 00:03:49,227 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-29 00:03:49,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 165 states and 209 transitions. [2023-11-29 00:03:49,229 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2023-11-29 00:03:49,229 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 00:03:49,229 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 00:03:49,230 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:03:49,230 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] [2023-11-29 00:03:49,230 INFO L748 eck$LassoCheckResult]: Stem: 560#$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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 561#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 555#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 556#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; 626#valid_product_returnLabel#1 main_#t~ret51#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 612#L935 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 609#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; 610#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 643#L577-2 [2023-11-29 00:03:49,231 INFO L750 eck$LassoCheckResult]: Loop: 643#L577-2 assume !false; 654#L578 assume test_~splverifierCounter~0#1 < 4; 655#L579 havoc test_#t~nondet33#1;test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 687#L587 assume !(0 != test_~tmp~3#1); 685#L587-2 havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 637#L597 assume !(0 != test_~tmp___0~0#1); 592#L597-2 havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 564#L607 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 565#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 536#L615-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 543#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret48#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret48#1;havoc __utac_acc__Specification5_spec__2_#t~ret48#1; 639#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 630#L650 assume !(0 != ~pumpRunning~0); 607#L650-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 608#L682 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1; 611#L553 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1; 549#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 550#L784 assume !(0 != isHighWaterLevel_~tmp~5#1);isHighWaterLevel_~tmp___0~1#1 := 1; 597#L784-2 isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1; 598#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; 601#L686 assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 539#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 540#L682-1 havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true; 627#L657-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1; 594#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret49#1;havoc __utac_acc__Specification5_spec__3_#t~ret49#1; 595#L830 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 660#L830-1 havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 658#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 643#L577-2 [2023-11-29 00:03:49,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:03:49,231 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2023-11-29 00:03:49,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:03:49,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988364770] [2023-11-29 00:03:49,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:03:49,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:03:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:03:49,242 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:03:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:03:49,252 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:03:49,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:03:49,253 INFO L85 PathProgramCache]: Analyzing trace with hash -622464868, now seen corresponding path program 1 times [2023-11-29 00:03:49,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:03:49,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446199794] [2023-11-29 00:03:49,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:03:49,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:03:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:49,352 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 00:03:49,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:03:49,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446199794] [2023-11-29 00:03:49,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446199794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:03:49,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:03:49,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:03:49,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537068473] [2023-11-29 00:03:49,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:03:49,353 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 00:03:49,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:03:49,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:03:49,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:03:49,354 INFO L87 Difference]: Start difference. First operand 165 states and 209 transitions. cyclomatic complexity: 46 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:03:49,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:03:49,503 INFO L93 Difference]: Finished difference Result 479 states and 602 transitions. [2023-11-29 00:03:49,503 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 479 states and 602 transitions. [2023-11-29 00:03:49,508 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 329 [2023-11-29 00:03:49,513 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 479 states to 479 states and 602 transitions. [2023-11-29 00:03:49,513 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 479 [2023-11-29 00:03:49,514 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 479 [2023-11-29 00:03:49,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 479 states and 602 transitions. [2023-11-29 00:03:49,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:03:49,518 INFO L218 hiAutomatonCegarLoop]: Abstraction has 479 states and 602 transitions. [2023-11-29 00:03:49,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states and 602 transitions. [2023-11-29 00:03:49,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 319. [2023-11-29 00:03:49,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 319 states have (on average 1.2476489028213167) internal successors, (398), 318 states have internal predecessors, (398), 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 00:03:49,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 398 transitions. [2023-11-29 00:03:49,542 INFO L240 hiAutomatonCegarLoop]: Abstraction has 319 states and 398 transitions. [2023-11-29 00:03:49,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:03:49,543 INFO L428 stractBuchiCegarLoop]: Abstraction has 319 states and 398 transitions. [2023-11-29 00:03:49,543 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-29 00:03:49,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 319 states and 398 transitions. [2023-11-29 00:03:49,546 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 230 [2023-11-29 00:03:49,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 00:03:49,546 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 00:03:49,547 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:03:49,548 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:03:49,548 INFO L748 eck$LassoCheckResult]: Stem: 1217#$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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 1218#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 1212#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1213#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; 1285#valid_product_returnLabel#1 main_#t~ret51#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 1269#L935 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1266#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; 1267#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1305#L577-2 [2023-11-29 00:03:49,548 INFO L750 eck$LassoCheckResult]: Loop: 1305#L577-2 assume !false; 1425#L578 assume test_~splverifierCounter~0#1 < 4; 1423#L579 havoc test_#t~nondet33#1;test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 1418#L587 assume !(0 != test_~tmp~3#1); 1415#L587-2 havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 1412#L597 assume !(0 != test_~tmp___0~0#1); 1408#L597-2 havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 1406#L607 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1403#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 1401#L615-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 1400#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret48#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret48#1;havoc __utac_acc__Specification5_spec__2_#t~ret48#1; 1399#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1380#L650 assume !(0 != ~pumpRunning~0); 1378#L650-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 1376#L682 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1; 1375#L553 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1; 1277#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 1371#L784 assume !(0 != isHighWaterLevel_~tmp~5#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1370#L784-2 isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1; 1369#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; 1367#L686 assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1368#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 1432#L682-1 havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true; 1431#L657-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1; 1251#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret49#1;havoc __utac_acc__Specification5_spec__3_#t~ret49#1; 1252#L830 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 1294#isPumpRunning_returnLabel#2 __utac_acc__Specification5_spec__3_#t~ret50#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 1301#L834 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 1302#L830-1 havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1318#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1305#L577-2 [2023-11-29 00:03:49,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:03:49,549 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2023-11-29 00:03:49,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:03:49,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622986417] [2023-11-29 00:03:49,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:03:49,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:03:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:03:49,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:03:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:03:49,567 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:03:49,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:03:49,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1209289001, now seen corresponding path program 1 times [2023-11-29 00:03:49,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:03:49,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670901189] [2023-11-29 00:03:49,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:03:49,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:03:49,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:49,614 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 00:03:49,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:03:49,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670901189] [2023-11-29 00:03:49,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670901189] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:03:49,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:03:49,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:03:49,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394962652] [2023-11-29 00:03:49,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:03:49,616 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 00:03:49,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:03:49,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:03:49,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:03:49,617 INFO L87 Difference]: Start difference. First operand 319 states and 398 transitions. cyclomatic complexity: 81 Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 00:03:49,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:03:49,670 INFO L93 Difference]: Finished difference Result 560 states and 694 transitions. [2023-11-29 00:03:49,670 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 560 states and 694 transitions. [2023-11-29 00:03:49,674 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 412 [2023-11-29 00:03:49,678 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 560 states to 560 states and 694 transitions. [2023-11-29 00:03:49,678 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 560 [2023-11-29 00:03:49,678 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 560 [2023-11-29 00:03:49,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 560 states and 694 transitions. [2023-11-29 00:03:49,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:03:49,680 INFO L218 hiAutomatonCegarLoop]: Abstraction has 560 states and 694 transitions. [2023-11-29 00:03:49,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states and 694 transitions. [2023-11-29 00:03:49,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 325. [2023-11-29 00:03:49,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 325 states have (on average 1.243076923076923) internal successors, (404), 324 states have internal predecessors, (404), 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 00:03:49,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 404 transitions. [2023-11-29 00:03:49,697 INFO L240 hiAutomatonCegarLoop]: Abstraction has 325 states and 404 transitions. [2023-11-29 00:03:49,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:03:49,698 INFO L428 stractBuchiCegarLoop]: Abstraction has 325 states and 404 transitions. [2023-11-29 00:03:49,698 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-29 00:03:49,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 325 states and 404 transitions. [2023-11-29 00:03:49,701 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 234 [2023-11-29 00:03:49,701 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 00:03:49,701 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 00:03:49,702 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:03:49,702 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:03:49,702 INFO L748 eck$LassoCheckResult]: Stem: 2105#$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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 2106#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 2100#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2101#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; 2180#valid_product_returnLabel#1 main_#t~ret51#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 2160#L935 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 2156#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; 2157#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2199#L577-2 [2023-11-29 00:03:49,703 INFO L750 eck$LassoCheckResult]: Loop: 2199#L577-2 assume !false; 2221#L578 assume test_~splverifierCounter~0#1 < 4; 2222#L579 havoc test_#t~nondet33#1;test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 2357#L587 assume !(0 != test_~tmp~3#1); 2354#L587-2 havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 2349#L597 assume !(0 != test_~tmp___0~0#1); 2346#L597-2 havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 2344#L607 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2338#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 2335#L615-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 2333#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret48#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret48#1;havoc __utac_acc__Specification5_spec__2_#t~ret48#1; 2318#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2319#L650 assume !(0 != ~pumpRunning~0); 2331#L650-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 2242#L682 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1; 2169#L553 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1; 2170#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 2198#L784 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2144#L784-2 isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1; 2145#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; 2148#L686 assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2084#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 2085#L682-1 havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true; 2248#L657-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1; 2247#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret49#1;havoc __utac_acc__Specification5_spec__3_#t~ret49#1; 2246#L830 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 2244#isPumpRunning_returnLabel#2 __utac_acc__Specification5_spec__3_#t~ret50#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 2230#L834 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 2228#L830-1 havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2226#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2199#L577-2 [2023-11-29 00:03:49,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:03:49,703 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2023-11-29 00:03:49,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:03:49,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888677915] [2023-11-29 00:03:49,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:03:49,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:03:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:03:49,712 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:03:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:03:49,719 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:03:49,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:03:49,720 INFO L85 PathProgramCache]: Analyzing trace with hash -622482987, now seen corresponding path program 1 times [2023-11-29 00:03:49,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:03:49,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608301218] [2023-11-29 00:03:49,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:03:49,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:03:49,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:03:49,730 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:03:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:03:49,740 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:03:49,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:03:49,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1706626814, now seen corresponding path program 1 times [2023-11-29 00:03:49,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:03:49,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073574240] [2023-11-29 00:03:49,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:03:49,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:03:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:03:49,753 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:03:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:03:49,769 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:03:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:03:50,858 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:03:50,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:03:50,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 12:03:50 BoogieIcfgContainer [2023-11-29 00:03:50,913 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 00:03:50,914 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 00:03:50,914 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 00:03:50,914 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 00:03:50,915 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:03:48" (3/4) ... [2023-11-29 00:03:50,916 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-29 00:03:50,968 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274a46a4-b32b-4e84-9318-7f528fd7def9/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 00:03:50,969 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 00:03:50,969 INFO L158 Benchmark]: Toolchain (without parser) took 3639.87ms. Allocated memory was 178.3MB in the beginning and 218.1MB in the end (delta: 39.8MB). Free memory was 136.0MB in the beginning and 168.9MB in the end (delta: -32.9MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2023-11-29 00:03:50,970 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory was 54.5MB in the beginning and 54.4MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:03:50,970 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.64ms. Allocated memory is still 178.3MB. Free memory was 136.0MB in the beginning and 116.7MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 00:03:50,971 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.23ms. Allocated memory is still 178.3MB. Free memory was 116.7MB in the beginning and 114.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 00:03:50,971 INFO L158 Benchmark]: Boogie Preprocessor took 49.79ms. Allocated memory is still 178.3MB. Free memory was 114.1MB in the beginning and 111.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 00:03:50,971 INFO L158 Benchmark]: RCFGBuilder took 468.48ms. Allocated memory is still 178.3MB. Free memory was 111.3MB in the beginning and 144.4MB in the end (delta: -33.1MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2023-11-29 00:03:50,972 INFO L158 Benchmark]: BuchiAutomizer took 2615.64ms. Allocated memory was 178.3MB in the beginning and 218.1MB in the end (delta: 39.8MB). Free memory was 144.4MB in the beginning and 172.1MB in the end (delta: -27.7MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2023-11-29 00:03:50,972 INFO L158 Benchmark]: Witness Printer took 55.03ms. Allocated memory is still 218.1MB. Free memory was 172.1MB in the beginning and 168.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 00:03:50,974 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory was 54.5MB in the beginning and 54.4MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 396.64ms. Allocated memory is still 178.3MB. Free memory was 136.0MB in the beginning and 116.7MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.23ms. Allocated memory is still 178.3MB. Free memory was 116.7MB in the beginning and 114.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.79ms. Allocated memory is still 178.3MB. Free memory was 114.1MB in the beginning and 111.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 468.48ms. Allocated memory is still 178.3MB. Free memory was 111.3MB in the beginning and 144.4MB in the end (delta: -33.1MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 2615.64ms. Allocated memory was 178.3MB in the beginning and 218.1MB in the end (delta: 39.8MB). Free memory was 144.4MB in the beginning and 172.1MB in the end (delta: -27.7MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Witness Printer took 55.03ms. Allocated memory is still 218.1MB. Free memory was 172.1MB in the beginning and 168.9MB 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,"wsllib_check.i","") [87] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [96] - GenericResultAtLocation [Line: 462]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [462] - GenericResultAtLocation [Line: 563]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [563] - GenericResultAtLocation [Line: 633]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [633] - GenericResultAtLocation [Line: 802]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [802] - GenericResultAtLocation [Line: 851]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [851] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 325 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 395 StatesRemovedByMinimization, 2 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, 1100 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1100 mSDsluCounter, 1533 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 847 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 175 IncrementalHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 686 mSDtfsCounter, 175 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 577]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L266] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L470] int waterLevel = 1; [L471] int methaneLevelCritical = 0; [L638] int pumpRunning = 0; [L639] int systemActive = 1; [L803] int switchedOnBeforeTS ; [L852] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L926] int retValue_acc ; [L927] int tmp ; [L931] FCALL select_helpers() [L932] FCALL select_features() [L933] 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] [L933] RET, EXPR valid_product() [L933] tmp = valid_product() [L935] COND TRUE \read(tmp) [L937] FCALL setup() [L938] CALL runTest() [L919] CALL __utac_acc__Specification5_spec__1() [L808] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L919] RET __utac_acc__Specification5_spec__1() [L920] CALL test() [L568] int splverifierCounter ; [L569] int tmp ; [L570] int tmp___0 ; [L571] int tmp___1 ; [L572] int tmp___2 ; [L575] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L577] COND TRUE 1 [L579] COND TRUE splverifierCounter < 4 [L585] tmp = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp)) [L595] tmp___0 = __VERIFIER_nondet_int() [L597] COND FALSE !(\read(tmp___0)) [L605] tmp___2 = __VERIFIER_nondet_int() [L607] COND TRUE \read(tmp___2) [L609] CALL startSystem() [L798] systemActive = 1 [L609] RET startSystem() [L622] CALL timeShift() [L648] CALL __utac_acc__Specification5_spec__2() [L817] CALL, EXPR isPumpRunning() [L731] int retValue_acc ; [L734] retValue_acc = pumpRunning [L735] return (retValue_acc); [L817] RET, EXPR isPumpRunning() [L817] switchedOnBeforeTS = isPumpRunning() [L648] RET __utac_acc__Specification5_spec__2() [L650] COND FALSE !(\read(pumpRunning)) [L657] COND TRUE \read(systemActive) [L659] CALL processEnvironment() [L679] int tmp ; [L682] COND TRUE ! pumpRunning [L684] CALL, EXPR isHighWaterLevel() [L776] int retValue_acc ; [L777] int tmp ; [L778] int tmp___0 ; [L782] CALL, EXPR isHighWaterSensorDry() [L550] int retValue_acc ; [L553] COND TRUE waterLevel < 2 [L554] retValue_acc = 1 [L555] return (retValue_acc); [L782] RET, EXPR isHighWaterSensorDry() [L782] tmp = isHighWaterSensorDry() [L784] COND TRUE \read(tmp) [L785] tmp___0 = 0 [L789] retValue_acc = tmp___0 [L790] return (retValue_acc); [L684] RET, EXPR isHighWaterLevel() [L684] tmp = isHighWaterLevel() [L686] COND FALSE !(\read(tmp)) [L692] FCALL processEnvironment__wrappee__base() [L659] RET processEnvironment() [L665] CALL __utac_acc__Specification5_spec__3() [L823] int tmp ; [L824] int tmp___0 ; [L828] CALL, EXPR getWaterLevel() [L541] int retValue_acc ; [L544] retValue_acc = waterLevel [L545] return (retValue_acc); [L828] RET, EXPR getWaterLevel() [L828] tmp = getWaterLevel() [L830] COND TRUE tmp != 2 [L832] CALL, EXPR isPumpRunning() [L731] int retValue_acc ; [L734] retValue_acc = pumpRunning [L735] return (retValue_acc); [L832] RET, EXPR isPumpRunning() [L832] tmp___0 = isPumpRunning() [L834] COND FALSE !(\read(tmp___0)) [L665] RET __utac_acc__Specification5_spec__3() [L622] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 577]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L266] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L470] int waterLevel = 1; [L471] int methaneLevelCritical = 0; [L638] int pumpRunning = 0; [L639] int systemActive = 1; [L803] int switchedOnBeforeTS ; [L852] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L926] int retValue_acc ; [L927] int tmp ; [L931] FCALL select_helpers() [L932] FCALL select_features() [L933] 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] [L933] RET, EXPR valid_product() [L933] tmp = valid_product() [L935] COND TRUE \read(tmp) [L937] FCALL setup() [L938] CALL runTest() [L919] CALL __utac_acc__Specification5_spec__1() [L808] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L919] RET __utac_acc__Specification5_spec__1() [L920] CALL test() [L568] int splverifierCounter ; [L569] int tmp ; [L570] int tmp___0 ; [L571] int tmp___1 ; [L572] int tmp___2 ; [L575] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L577] COND TRUE 1 [L579] COND TRUE splverifierCounter < 4 [L585] tmp = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp)) [L595] tmp___0 = __VERIFIER_nondet_int() [L597] COND FALSE !(\read(tmp___0)) [L605] tmp___2 = __VERIFIER_nondet_int() [L607] COND TRUE \read(tmp___2) [L609] CALL startSystem() [L798] systemActive = 1 [L609] RET startSystem() [L622] CALL timeShift() [L648] CALL __utac_acc__Specification5_spec__2() [L817] CALL, EXPR isPumpRunning() [L731] int retValue_acc ; [L734] retValue_acc = pumpRunning [L735] return (retValue_acc); [L817] RET, EXPR isPumpRunning() [L817] switchedOnBeforeTS = isPumpRunning() [L648] RET __utac_acc__Specification5_spec__2() [L650] COND FALSE !(\read(pumpRunning)) [L657] COND TRUE \read(systemActive) [L659] CALL processEnvironment() [L679] int tmp ; [L682] COND TRUE ! pumpRunning [L684] CALL, EXPR isHighWaterLevel() [L776] int retValue_acc ; [L777] int tmp ; [L778] int tmp___0 ; [L782] CALL, EXPR isHighWaterSensorDry() [L550] int retValue_acc ; [L553] COND TRUE waterLevel < 2 [L554] retValue_acc = 1 [L555] return (retValue_acc); [L782] RET, EXPR isHighWaterSensorDry() [L782] tmp = isHighWaterSensorDry() [L784] COND TRUE \read(tmp) [L785] tmp___0 = 0 [L789] retValue_acc = tmp___0 [L790] return (retValue_acc); [L684] RET, EXPR isHighWaterLevel() [L684] tmp = isHighWaterLevel() [L686] COND FALSE !(\read(tmp)) [L692] FCALL processEnvironment__wrappee__base() [L659] RET processEnvironment() [L665] CALL __utac_acc__Specification5_spec__3() [L823] int tmp ; [L824] int tmp___0 ; [L828] CALL, EXPR getWaterLevel() [L541] int retValue_acc ; [L544] retValue_acc = waterLevel [L545] return (retValue_acc); [L828] RET, EXPR getWaterLevel() [L828] tmp = getWaterLevel() [L830] COND TRUE tmp != 2 [L832] CALL, EXPR isPumpRunning() [L731] int retValue_acc ; [L734] retValue_acc = pumpRunning [L735] return (retValue_acc); [L832] RET, EXPR isPumpRunning() [L832] tmp___0 = isPumpRunning() [L834] COND FALSE !(\read(tmp___0)) [L665] RET __utac_acc__Specification5_spec__3() [L622] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-29 00:03:51,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274a46a4-b32b-4e84-9318-7f528fd7def9/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)