./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.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_64d01c23-b8fb-458a-b5ba-6319e72ca3b0/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64d01c23-b8fb-458a-b5ba-6319e72ca3b0/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64d01c23-b8fb-458a-b5ba-6319e72ca3b0/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64d01c23-b8fb-458a-b5ba-6319e72ca3b0/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64d01c23-b8fb-458a-b5ba-6319e72ca3b0/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64d01c23-b8fb-458a-b5ba-6319e72ca3b0/bin/uautomizer-verify-VRDe98Ueme --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 5399744cbc243992ccbbf21bf0e09dd5dced55fce1050770392b2964c31c4145 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:43:50,951 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:43:51,033 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64d01c23-b8fb-458a-b5ba-6319e72ca3b0/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-26 10:43:51,038 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:43:51,039 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:43:51,066 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:43:51,067 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:43:51,067 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:43:51,068 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:43:51,069 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:43:51,069 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:43:51,070 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:43:51,070 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:43:51,071 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 10:43:51,071 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 10:43:51,072 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 10:43:51,072 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 10:43:51,073 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 10:43:51,073 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 10:43:51,074 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:43:51,074 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 10:43:51,075 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:43:51,075 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:43:51,076 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:43:51,076 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:43:51,076 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 10:43:51,077 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 10:43:51,077 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 10:43:51,078 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:43:51,078 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:43:51,078 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:43:51,079 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 10:43:51,079 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:43:51,079 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:43:51,079 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:43:51,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:43:51,080 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:43:51,081 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 10:43:51,081 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_64d01c23-b8fb-458a-b5ba-6319e72ca3b0/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64d01c23-b8fb-458a-b5ba-6319e72ca3b0/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5399744cbc243992ccbbf21bf0e09dd5dced55fce1050770392b2964c31c4145 [2023-11-26 10:43:51,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:43:51,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:43:51,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:43:51,396 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:43:51,397 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:43:51,399 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64d01c23-b8fb-458a-b5ba-6319e72ca3b0/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2023-11-26 10:43:54,806 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:43:55,101 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:43:55,102 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64d01c23-b8fb-458a-b5ba-6319e72ca3b0/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2023-11-26 10:43:55,132 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64d01c23-b8fb-458a-b5ba-6319e72ca3b0/bin/uautomizer-verify-VRDe98Ueme/data/addafcef2/adbd4d78bf33417f95c91d26dbd317f2/FLAG73b9e4236 [2023-11-26 10:43:55,153 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64d01c23-b8fb-458a-b5ba-6319e72ca3b0/bin/uautomizer-verify-VRDe98Ueme/data/addafcef2/adbd4d78bf33417f95c91d26dbd317f2 [2023-11-26 10:43:55,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:43:55,160 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:43:55,161 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:43:55,161 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:43:55,172 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:43:55,173 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:43:55" (1/1) ... [2023-11-26 10:43:55,176 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ab960e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:55, skipping insertion in model container [2023-11-26 10:43:55,176 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:43:55" (1/1) ... [2023-11-26 10:43:55,260 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:43:55,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:43:55,559 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:43:55,571 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-11-26 10:43:55,573 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [415] [2023-11-26 10:43:55,574 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [519] [2023-11-26 10:43:55,574 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [554] [2023-11-26 10:43:55,574 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [619] [2023-11-26 10:43:55,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [718] [2023-11-26 10:43:55,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [874] [2023-11-26 10:43:55,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [883] [2023-11-26 10:43:55,640 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:43:55,663 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:43:55,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:55 WrapperNode [2023-11-26 10:43:55,664 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:43:55,666 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:43:55,666 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:43:55,666 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:43:55,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:55" (1/1) ... [2023-11-26 10:43:55,690 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:55" (1/1) ... [2023-11-26 10:43:55,740 INFO L138 Inliner]: procedures = 52, calls = 94, calls flagged for inlining = 47, calls inlined = 50, statements flattened = 339 [2023-11-26 10:43:55,741 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:43:55,742 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:43:55,742 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:43:55,742 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:43:55,755 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:55" (1/1) ... [2023-11-26 10:43:55,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:55" (1/1) ... [2023-11-26 10:43:55,762 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:55" (1/1) ... [2023-11-26 10:43:55,790 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]. [2023-11-26 10:43:55,791 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:55" (1/1) ... [2023-11-26 10:43:55,791 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:55" (1/1) ... [2023-11-26 10:43:55,798 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:55" (1/1) ... [2023-11-26 10:43:55,816 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:55" (1/1) ... [2023-11-26 10:43:55,823 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:55" (1/1) ... [2023-11-26 10:43:55,826 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:55" (1/1) ... [2023-11-26 10:43:55,828 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:43:55,829 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:43:55,830 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:43:55,830 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:43:55,831 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:55" (1/1) ... [2023-11-26 10:43:55,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:43:55,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64d01c23-b8fb-458a-b5ba-6319e72ca3b0/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:43:55,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64d01c23-b8fb-458a-b5ba-6319e72ca3b0/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:43:55,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64d01c23-b8fb-458a-b5ba-6319e72ca3b0/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 10:43:55,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:43:55,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:43:55,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:43:55,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:43:56,006 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:43:56,008 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:43:56,361 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:43:56,375 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:43:56,375 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 10:43:56,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:43:56 BoogieIcfgContainer [2023-11-26 10:43:56,377 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:43:56,378 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 10:43:56,378 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 10:43:56,382 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 10:43:56,383 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:43:56,384 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 10:43:55" (1/3) ... [2023-11-26 10:43:56,385 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a9ab150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 10:43:56, skipping insertion in model container [2023-11-26 10:43:56,385 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:43:56,385 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:55" (2/3) ... [2023-11-26 10:43:56,386 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a9ab150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 10:43:56, skipping insertion in model container [2023-11-26 10:43:56,386 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:43:56,386 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:43:56" (3/3) ... [2023-11-26 10:43:56,388 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2023-11-26 10:43:56,453 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 10:43:56,453 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 10:43:56,453 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 10:43:56,454 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 10:43:56,454 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 10:43:56,454 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 10:43:56,454 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 10:43:56,455 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 10:43:56,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 107 states have internal predecessors, (147), 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) [2023-11-26 10:43:56,508 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 68 [2023-11-26 10:43:56,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:43:56,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:43:56,516 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:56,516 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:56,516 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 10:43:56,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 107 states have internal predecessors, (147), 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) [2023-11-26 10:43:56,524 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 68 [2023-11-26 10:43:56,525 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:43:56,525 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:43:56,526 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:56,526 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:56,532 INFO L748 eck$LassoCheckResult]: Stem: 25#$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;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 32#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 19#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 88#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 78#valid_product_returnLabel#1true main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 97#L506true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 60#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 53#L565-2true [2023-11-26 10:43:56,533 INFO L750 eck$LassoCheckResult]: Loop: 53#L565-2true assume !false; 92#L566true assume test_~splverifierCounter~0#1 < 4; 39#L567true havoc test_#t~nondet29#1;test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 13#L575true assume !(0 != test_~tmp~4#1); 14#L575-2true havoc test_#t~nondet30#1;test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 65#L585true assume !(0 != test_~tmp___0~0#1); 33#L585-2true havoc test_#t~nondet31#1;test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 109#L595true assume 0 != test_~tmp___2~0#1; 66#L601-2true assume { :begin_inline_timeShift } true; 46#L730true assume !(0 != ~pumpRunning~0); 45#L730-2true assume !(0 != ~systemActive~0); 29#L737-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 54#getWaterLevel_returnLabel#1true __utac_acc__Specification4_spec__1_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret49#1;havoc __utac_acc__Specification4_spec__1_#t~ret49#1; 100#L892true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 68#L892-1true havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 55#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 53#L565-2true [2023-11-26 10:43:56,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:56,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2023-11-26 10:43:56,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:56,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752001528] [2023-11-26 10:43:56,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:56,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:43:56,649 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:43:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:43:56,692 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:43:56,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:56,696 INFO L85 PathProgramCache]: Analyzing trace with hash -680966906, now seen corresponding path program 1 times [2023-11-26 10:43:56,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:56,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088858193] [2023-11-26 10:43:56,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:56,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:43:56,709 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:43:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:43:56,721 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:43:56,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:56,724 INFO L85 PathProgramCache]: Analyzing trace with hash 674452170, now seen corresponding path program 1 times [2023-11-26 10:43:56,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:56,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001438643] [2023-11-26 10:43:56,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:56,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:57,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:57,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:57,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001438643] [2023-11-26 10:43:57,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001438643] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:57,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:57,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:43:57,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744047958] [2023-11-26 10:43:57,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:57,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:57,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:43:57,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:43:57,197 INFO L87 Difference]: Start difference. First operand has 108 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 107 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:57,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:57,270 INFO L93 Difference]: Finished difference Result 102 states and 130 transitions. [2023-11-26 10:43:57,272 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 130 transitions. [2023-11-26 10:43:57,276 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 62 [2023-11-26 10:43:57,281 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 92 states and 120 transitions. [2023-11-26 10:43:57,283 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2023-11-26 10:43:57,283 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 92 [2023-11-26 10:43:57,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 120 transitions. [2023-11-26 10:43:57,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:43:57,285 INFO L218 hiAutomatonCegarLoop]: Abstraction has 92 states and 120 transitions. [2023-11-26 10:43:57,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 120 transitions. [2023-11-26 10:43:57,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2023-11-26 10:43:57,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 92 states have (on average 1.3043478260869565) internal successors, (120), 91 states have internal predecessors, (120), 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) [2023-11-26 10:43:57,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 120 transitions. [2023-11-26 10:43:57,323 INFO L240 hiAutomatonCegarLoop]: Abstraction has 92 states and 120 transitions. [2023-11-26 10:43:57,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:43:57,329 INFO L428 stractBuchiCegarLoop]: Abstraction has 92 states and 120 transitions. [2023-11-26 10:43:57,329 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 10:43:57,329 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 92 states and 120 transitions. [2023-11-26 10:43:57,331 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 62 [2023-11-26 10:43:57,331 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:43:57,332 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:43:57,332 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:57,333 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] [2023-11-26 10:43:57,333 INFO L748 eck$LassoCheckResult]: Stem: 288#$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;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 289#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 279#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 280#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 276#valid_product_returnLabel#1 main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 277#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 230#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 231#L565-2 [2023-11-26 10:43:57,333 INFO L750 eck$LassoCheckResult]: Loop: 231#L565-2 assume !false; 304#L566 assume test_~splverifierCounter~0#1 < 4; 305#L567 havoc test_#t~nondet29#1;test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 255#L575 assume !(0 != test_~tmp~4#1); 257#L575-2 havoc test_#t~nondet30#1;test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 246#L585 assume !(0 != test_~tmp___0~0#1); 248#L585-2 havoc test_#t~nondet31#1;test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 307#L595 assume 0 != test_~tmp___2~0#1; 251#L601-2 assume { :begin_inline_timeShift } true; 252#L730 assume !(0 != ~pumpRunning~0); 269#L730-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 271#L762 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 236#processEnvironment__wrappee__base_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__base } true; 235#L762-1 havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 294#L737-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 297#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret49#1;havoc __utac_acc__Specification4_spec__1_#t~ret49#1; 314#L892 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 250#L892-1 havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 261#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 231#L565-2 [2023-11-26 10:43:57,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:57,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2023-11-26 10:43:57,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:57,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72547242] [2023-11-26 10:43:57,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:57,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:57,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:43:57,348 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:43:57,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:43:57,361 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:43:57,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:57,363 INFO L85 PathProgramCache]: Analyzing trace with hash -232246363, now seen corresponding path program 1 times [2023-11-26 10:43:57,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:57,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281440834] [2023-11-26 10:43:57,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:57,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:57,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:57,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:57,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:57,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281440834] [2023-11-26 10:43:57,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281440834] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:57,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:57,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:43:57,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237450458] [2023-11-26 10:43:57,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:57,391 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 10:43:57,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:57,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:43:57,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:57,393 INFO L87 Difference]: Start difference. First operand 92 states and 120 transitions. cyclomatic complexity: 30 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:57,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:57,451 INFO L93 Difference]: Finished difference Result 144 states and 182 transitions. [2023-11-26 10:43:57,452 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 144 states and 182 transitions. [2023-11-26 10:43:57,454 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2023-11-26 10:43:57,456 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 144 states to 144 states and 182 transitions. [2023-11-26 10:43:57,457 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 144 [2023-11-26 10:43:57,457 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 144 [2023-11-26 10:43:57,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 144 states and 182 transitions. [2023-11-26 10:43:57,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:43:57,459 INFO L218 hiAutomatonCegarLoop]: Abstraction has 144 states and 182 transitions. [2023-11-26 10:43:57,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states and 182 transitions. [2023-11-26 10:43:57,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2023-11-26 10:43:57,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 144 states have (on average 1.2638888888888888) internal successors, (182), 143 states have internal predecessors, (182), 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) [2023-11-26 10:43:57,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 182 transitions. [2023-11-26 10:43:57,470 INFO L240 hiAutomatonCegarLoop]: Abstraction has 144 states and 182 transitions. [2023-11-26 10:43:57,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:43:57,472 INFO L428 stractBuchiCegarLoop]: Abstraction has 144 states and 182 transitions. [2023-11-26 10:43:57,472 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-26 10:43:57,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 144 states and 182 transitions. [2023-11-26 10:43:57,474 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2023-11-26 10:43:57,474 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:43:57,474 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:43:57,475 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:57,475 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] [2023-11-26 10:43:57,476 INFO L748 eck$LassoCheckResult]: Stem: 532#$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;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 533#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 522#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 523#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 519#valid_product_returnLabel#1 main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 520#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 472#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 473#L565-2 [2023-11-26 10:43:57,476 INFO L750 eck$LassoCheckResult]: Loop: 473#L565-2 assume !false; 549#L566 assume test_~splverifierCounter~0#1 < 4; 550#L567 havoc test_#t~nondet29#1;test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 498#L575 assume !(0 != test_~tmp~4#1); 500#L575-2 havoc test_#t~nondet30#1;test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 488#L585 assume !(0 != test_~tmp___0~0#1); 490#L585-2 havoc test_#t~nondet31#1;test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 552#L595 assume 0 != test_~tmp___2~0#1; 494#L601-2 assume { :begin_inline_timeShift } true; 495#L730 assume !(0 != ~pumpRunning~0); 563#L730-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 514#L762 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 496#L708 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 497#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1; 508#L864 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 556#L864-2 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 542#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret38#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret38#1;havoc processEnvironment_#t~ret38#1; 479#L766 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 480#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 493#L762-1 havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 538#L737-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 541#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret49#1;havoc __utac_acc__Specification4_spec__1_#t~ret49#1; 559#L892 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 492#L892-1 havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 505#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 473#L565-2 [2023-11-26 10:43:57,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:57,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2023-11-26 10:43:57,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:57,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711108295] [2023-11-26 10:43:57,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:57,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:43:57,489 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:43:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:43:57,500 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:43:57,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:57,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1748465809, now seen corresponding path program 1 times [2023-11-26 10:43:57,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:57,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644360802] [2023-11-26 10:43:57,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:57,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:57,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:57,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:57,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644360802] [2023-11-26 10:43:57,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644360802] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:57,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:57,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:43:57,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259235003] [2023-11-26 10:43:57,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:57,573 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 10:43:57,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:57,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:43:57,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:43:57,575 INFO L87 Difference]: Start difference. First operand 144 states and 182 transitions. cyclomatic complexity: 40 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2023-11-26 10:43:57,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:57,669 INFO L93 Difference]: Finished difference Result 284 states and 354 transitions. [2023-11-26 10:43:57,669 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 284 states and 354 transitions. [2023-11-26 10:43:57,673 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 206 [2023-11-26 10:43:57,678 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 284 states to 284 states and 354 transitions. [2023-11-26 10:43:57,678 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 284 [2023-11-26 10:43:57,679 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 284 [2023-11-26 10:43:57,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 284 states and 354 transitions. [2023-11-26 10:43:57,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:43:57,682 INFO L218 hiAutomatonCegarLoop]: Abstraction has 284 states and 354 transitions. [2023-11-26 10:43:57,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states and 354 transitions. [2023-11-26 10:43:57,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 150. [2023-11-26 10:43:57,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 150 states have (on average 1.2533333333333334) internal successors, (188), 149 states have internal predecessors, (188), 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) [2023-11-26 10:43:57,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 188 transitions. [2023-11-26 10:43:57,696 INFO L240 hiAutomatonCegarLoop]: Abstraction has 150 states and 188 transitions. [2023-11-26 10:43:57,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:43:57,697 INFO L428 stractBuchiCegarLoop]: Abstraction has 150 states and 188 transitions. [2023-11-26 10:43:57,698 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-26 10:43:57,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 188 transitions. [2023-11-26 10:43:57,699 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2023-11-26 10:43:57,700 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:43:57,700 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:43:57,701 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:57,701 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] [2023-11-26 10:43:57,701 INFO L748 eck$LassoCheckResult]: Stem: 970#$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;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 971#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 960#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 961#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 957#valid_product_returnLabel#1 main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 958#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 909#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 910#L565-2 [2023-11-26 10:43:57,701 INFO L750 eck$LassoCheckResult]: Loop: 910#L565-2 assume !false; 987#L566 assume test_~splverifierCounter~0#1 < 4; 988#L567 havoc test_#t~nondet29#1;test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1049#L575 assume !(0 != test_~tmp~4#1); 939#L575-2 havoc test_#t~nondet30#1;test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 925#L585 assume !(0 != test_~tmp___0~0#1); 927#L585-2 havoc test_#t~nondet31#1;test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 990#L595 assume 0 != test_~tmp___2~0#1; 931#L601-2 assume { :begin_inline_timeShift } true; 932#L730 assume !(0 != ~pumpRunning~0); 1004#L730-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 952#L762 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 933#L708 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 934#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1; 996#L864 assume !(0 != isHighWaterLevel_~tmp~6#1);isHighWaterLevel_~tmp___0~1#1 := 1; 997#L864-2 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 980#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret38#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret38#1;havoc processEnvironment_#t~ret38#1; 916#L766 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 917#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 930#L762-1 havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 976#L737-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 979#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret49#1;havoc __utac_acc__Specification4_spec__1_#t~ret49#1; 1001#L892 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 929#L892-1 havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 943#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 910#L565-2 [2023-11-26 10:43:57,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:57,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2023-11-26 10:43:57,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:57,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503573834] [2023-11-26 10:43:57,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:57,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:43:57,713 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:43:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:43:57,724 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:43:57,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:57,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1047401231, now seen corresponding path program 1 times [2023-11-26 10:43:57,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:57,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469360274] [2023-11-26 10:43:57,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:57,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:57,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:57,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:57,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469360274] [2023-11-26 10:43:57,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469360274] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:57,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:57,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:43:57,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752958563] [2023-11-26 10:43:57,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:57,828 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 10:43:57,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:57,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:43:57,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:43:57,829 INFO L87 Difference]: Start difference. First operand 150 states and 188 transitions. cyclomatic complexity: 40 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2023-11-26 10:43:57,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:57,922 INFO L93 Difference]: Finished difference Result 235 states and 292 transitions. [2023-11-26 10:43:57,922 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 235 states and 292 transitions. [2023-11-26 10:43:57,925 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 168 [2023-11-26 10:43:57,928 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 235 states to 235 states and 292 transitions. [2023-11-26 10:43:57,928 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 235 [2023-11-26 10:43:57,929 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 235 [2023-11-26 10:43:57,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 235 states and 292 transitions. [2023-11-26 10:43:57,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:43:57,930 INFO L218 hiAutomatonCegarLoop]: Abstraction has 235 states and 292 transitions. [2023-11-26 10:43:57,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states and 292 transitions. [2023-11-26 10:43:57,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 159. [2023-11-26 10:43:57,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 159 states have (on average 1.2389937106918238) internal successors, (197), 158 states have internal predecessors, (197), 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) [2023-11-26 10:43:57,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 197 transitions. [2023-11-26 10:43:57,941 INFO L240 hiAutomatonCegarLoop]: Abstraction has 159 states and 197 transitions. [2023-11-26 10:43:57,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 10:43:57,943 INFO L428 stractBuchiCegarLoop]: Abstraction has 159 states and 197 transitions. [2023-11-26 10:43:57,943 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-26 10:43:57,943 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 197 transitions. [2023-11-26 10:43:57,944 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2023-11-26 10:43:57,945 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:43:57,945 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:43:57,946 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:57,946 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] [2023-11-26 10:43:57,946 INFO L748 eck$LassoCheckResult]: Stem: 1366#$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;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1367#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1356#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1357#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1353#valid_product_returnLabel#1 main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 1354#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1306#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1307#L565-2 [2023-11-26 10:43:57,946 INFO L750 eck$LassoCheckResult]: Loop: 1307#L565-2 assume !false; 1383#L566 assume test_~splverifierCounter~0#1 < 4; 1384#L567 havoc test_#t~nondet29#1;test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1461#L575 assume !(0 != test_~tmp~4#1); 1458#L575-2 havoc test_#t~nondet30#1;test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 1455#L585 assume !(0 != test_~tmp___0~0#1); 1450#L585-2 havoc test_#t~nondet31#1;test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 1412#L595 assume 0 != test_~tmp___2~0#1; 1328#L601-2 assume { :begin_inline_timeShift } true; 1329#L730 assume !(0 != ~pumpRunning~0); 1400#L730-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1348#L762 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1330#L708 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1332#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1; 1419#L864 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1417#L864-2 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 1415#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret38#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret38#1;havoc processEnvironment_#t~ret38#1; 1413#L766 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1326#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 1327#L762-1 havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 1449#L737-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 1448#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret49#1;havoc __utac_acc__Specification4_spec__1_#t~ret49#1; 1446#L892 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 1444#L892-1 havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1443#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1307#L565-2 [2023-11-26 10:43:57,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:57,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2023-11-26 10:43:57,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:57,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375198334] [2023-11-26 10:43:57,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:57,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:43:57,956 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:43:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:43:57,965 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:43:57,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:57,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1161659795, now seen corresponding path program 1 times [2023-11-26 10:43:57,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:57,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542538010] [2023-11-26 10:43:57,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:57,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:43:57,975 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:43:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:43:57,984 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:43:57,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:57,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1882302761, now seen corresponding path program 1 times [2023-11-26 10:43:57,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:57,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889109938] [2023-11-26 10:43:57,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:57,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:43:57,999 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:43:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:43:58,013 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:43:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:43:59,490 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:43:59,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:43:59,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 10:43:59 BoogieIcfgContainer [2023-11-26 10:43:59,555 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 10:43:59,556 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:43:59,556 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:43:59,556 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:43:59,557 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:43:56" (3/4) ... [2023-11-26 10:43:59,558 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-26 10:43:59,625 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64d01c23-b8fb-458a-b5ba-6319e72ca3b0/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 10:43:59,625 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:43:59,626 INFO L158 Benchmark]: Toolchain (without parser) took 4466.50ms. Allocated memory was 172.0MB in the beginning and 218.1MB in the end (delta: 46.1MB). Free memory was 123.5MB in the beginning and 143.0MB in the end (delta: -19.5MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2023-11-26 10:43:59,627 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 172.0MB. Free memory was 144.4MB in the beginning and 144.1MB in the end (delta: 243.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:43:59,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 503.52ms. Allocated memory is still 172.0MB. Free memory was 123.5MB in the beginning and 104.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 10:43:59,628 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.36ms. Allocated memory is still 172.0MB. Free memory was 104.6MB in the beginning and 102.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:43:59,629 INFO L158 Benchmark]: Boogie Preprocessor took 86.92ms. Allocated memory is still 172.0MB. Free memory was 102.2MB in the beginning and 99.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:43:59,629 INFO L158 Benchmark]: RCFGBuilder took 547.84ms. Allocated memory is still 172.0MB. Free memory was 99.4MB in the beginning and 81.6MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 10:43:59,630 INFO L158 Benchmark]: BuchiAutomizer took 3176.82ms. Allocated memory was 172.0MB in the beginning and 218.1MB in the end (delta: 46.1MB). Free memory was 81.6MB in the beginning and 147.2MB in the end (delta: -65.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:43:59,631 INFO L158 Benchmark]: Witness Printer took 69.86ms. Allocated memory is still 218.1MB. Free memory was 146.1MB in the beginning and 143.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:43:59,634 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 172.0MB. Free memory was 144.4MB in the beginning and 144.1MB in the end (delta: 243.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 503.52ms. Allocated memory is still 172.0MB. Free memory was 123.5MB in the beginning and 104.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.36ms. Allocated memory is still 172.0MB. Free memory was 104.6MB in the beginning and 102.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.92ms. Allocated memory is still 172.0MB. Free memory was 102.2MB in the beginning and 99.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 547.84ms. Allocated memory is still 172.0MB. Free memory was 99.4MB in the beginning and 81.6MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3176.82ms. Allocated memory was 172.0MB in the beginning and 218.1MB in the end (delta: 46.1MB). Free memory was 81.6MB in the beginning and 147.2MB in the end (delta: -65.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 69.86ms. Allocated memory is still 218.1MB. Free memory was 146.1MB in the beginning and 143.0MB 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [415] - GenericResultAtLocation [Line: 519]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [519] - GenericResultAtLocation [Line: 554]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [554] - GenericResultAtLocation [Line: 619]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [619] - GenericResultAtLocation [Line: 718]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [718] - GenericResultAtLocation [Line: 874]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [874] - GenericResultAtLocation [Line: 883]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [883] * 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 159 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. 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, 210 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, 672 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 672 mSDsluCounter, 1420 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 788 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 130 IncrementalHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 632 mSDtfsCounter, 130 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: 565]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L625] int waterLevel = 1; [L626] int methaneLevelCritical = 0; [L722] int pumpRunning = 0; [L723] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L497] int retValue_acc ; [L498] int tmp ; [L502] FCALL select_helpers() [L503] FCALL select_features() [L504] CALL, EXPR valid_product() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L504] RET, EXPR valid_product() [L504] tmp = valid_product() [L506] COND TRUE \read(tmp) [L508] FCALL setup() [L509] CALL runTest() [L488] CALL test() [L556] int splverifierCounter ; [L557] int tmp ; [L558] int tmp___0 ; [L559] int tmp___1 ; [L560] int tmp___2 ; [L563] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L565] COND TRUE 1 [L567] COND TRUE splverifierCounter < 4 [L573] tmp = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp)) [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND TRUE \read(tmp___2) [L608] CALL timeShift() [L730] COND FALSE !(\read(pumpRunning)) [L737] COND TRUE \read(systemActive) [L739] CALL processEnvironment() [L759] int tmp ; [L762] COND TRUE ! pumpRunning [L764] CALL, EXPR isHighWaterLevel() [L856] int retValue_acc ; [L857] int tmp ; [L858] int tmp___0 ; [L862] CALL, EXPR isHighWaterSensorDry() [L705] int retValue_acc ; [L708] COND TRUE waterLevel < 2 [L709] retValue_acc = 1 [L710] return (retValue_acc); [L862] RET, EXPR isHighWaterSensorDry() [L862] tmp = isHighWaterSensorDry() [L864] COND TRUE \read(tmp) [L865] tmp___0 = 0 [L869] retValue_acc = tmp___0 [L870] return (retValue_acc); [L764] RET, EXPR isHighWaterLevel() [L764] tmp = isHighWaterLevel() [L766] COND FALSE !(\read(tmp)) [L772] FCALL processEnvironment__wrappee__base() [L739] RET processEnvironment() [L745] CALL __utac_acc__Specification4_spec__1() [L885] int tmp ; [L886] int tmp___0 ; [L890] CALL, EXPR getWaterLevel() [L696] int retValue_acc ; [L699] retValue_acc = waterLevel [L700] return (retValue_acc); [L890] RET, EXPR getWaterLevel() [L890] tmp = getWaterLevel() [L892] COND FALSE !(tmp == 0) [L745] RET __utac_acc__Specification4_spec__1() [L608] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 565]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L625] int waterLevel = 1; [L626] int methaneLevelCritical = 0; [L722] int pumpRunning = 0; [L723] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L497] int retValue_acc ; [L498] int tmp ; [L502] FCALL select_helpers() [L503] FCALL select_features() [L504] CALL, EXPR valid_product() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L504] RET, EXPR valid_product() [L504] tmp = valid_product() [L506] COND TRUE \read(tmp) [L508] FCALL setup() [L509] CALL runTest() [L488] CALL test() [L556] int splverifierCounter ; [L557] int tmp ; [L558] int tmp___0 ; [L559] int tmp___1 ; [L560] int tmp___2 ; [L563] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L565] COND TRUE 1 [L567] COND TRUE splverifierCounter < 4 [L573] tmp = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp)) [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND TRUE \read(tmp___2) [L608] CALL timeShift() [L730] COND FALSE !(\read(pumpRunning)) [L737] COND TRUE \read(systemActive) [L739] CALL processEnvironment() [L759] int tmp ; [L762] COND TRUE ! pumpRunning [L764] CALL, EXPR isHighWaterLevel() [L856] int retValue_acc ; [L857] int tmp ; [L858] int tmp___0 ; [L862] CALL, EXPR isHighWaterSensorDry() [L705] int retValue_acc ; [L708] COND TRUE waterLevel < 2 [L709] retValue_acc = 1 [L710] return (retValue_acc); [L862] RET, EXPR isHighWaterSensorDry() [L862] tmp = isHighWaterSensorDry() [L864] COND TRUE \read(tmp) [L865] tmp___0 = 0 [L869] retValue_acc = tmp___0 [L870] return (retValue_acc); [L764] RET, EXPR isHighWaterLevel() [L764] tmp = isHighWaterLevel() [L766] COND FALSE !(\read(tmp)) [L772] FCALL processEnvironment__wrappee__base() [L739] RET processEnvironment() [L745] CALL __utac_acc__Specification4_spec__1() [L885] int tmp ; [L886] int tmp___0 ; [L890] CALL, EXPR getWaterLevel() [L696] int retValue_acc ; [L699] retValue_acc = waterLevel [L700] return (retValue_acc); [L890] RET, EXPR getWaterLevel() [L890] tmp = getWaterLevel() [L892] COND FALSE !(tmp == 0) [L745] RET __utac_acc__Specification4_spec__1() [L608] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-26 10:43:59,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64d01c23-b8fb-458a-b5ba-6319e72ca3b0/bin/uautomizer-verify-VRDe98Ueme/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)