./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product55.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_ee059f03-1d6c-47ec-b7aa-a7e17ee28afd/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee059f03-1d6c-47ec-b7aa-a7e17ee28afd/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_ee059f03-1d6c-47ec-b7aa-a7e17ee28afd/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee059f03-1d6c-47ec-b7aa-a7e17ee28afd/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee059f03-1d6c-47ec-b7aa-a7e17ee28afd/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_ee059f03-1d6c-47ec-b7aa-a7e17ee28afd/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 ee424d693dfd8c88be1863ebdbdf37ea7e1818258f96fab9b4ff8bf142707b41 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:00:21,332 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:00:21,441 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee059f03-1d6c-47ec-b7aa-a7e17ee28afd/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-26 12:00:21,447 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:00:21,447 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:00:21,477 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:00:21,477 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:00:21,478 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:00:21,479 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:00:21,482 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:00:21,484 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:00:21,485 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:00:21,486 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:00:21,491 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 12:00:21,491 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 12:00:21,492 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 12:00:21,493 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 12:00:21,494 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 12:00:21,495 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 12:00:21,495 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:00:21,496 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 12:00:21,496 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:00:21,497 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:00:21,497 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:00:21,498 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:00:21,498 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 12:00:21,499 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 12:00:21,499 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 12:00:21,500 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:00:21,500 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:00:21,500 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:00:21,501 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 12:00:21,501 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:00:21,502 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:00:21,502 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:00:21,502 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:00:21,503 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:00:21,503 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 12:00:21,504 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_ee059f03-1d6c-47ec-b7aa-a7e17ee28afd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee059f03-1d6c-47ec-b7aa-a7e17ee28afd/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee424d693dfd8c88be1863ebdbdf37ea7e1818258f96fab9b4ff8bf142707b41 [2023-11-26 12:00:21,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:00:21,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:00:21,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:00:21,920 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:00:21,921 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:00:21,922 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee059f03-1d6c-47ec-b7aa-a7e17ee28afd/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c [2023-11-26 12:00:25,124 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:00:25,362 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:00:25,363 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee059f03-1d6c-47ec-b7aa-a7e17ee28afd/sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c [2023-11-26 12:00:25,384 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee059f03-1d6c-47ec-b7aa-a7e17ee28afd/bin/uautomizer-verify-VRDe98Ueme/data/abe338c07/d4a37c484beb4351a850b5236f13f77b/FLAGad0c45b71 [2023-11-26 12:00:25,402 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee059f03-1d6c-47ec-b7aa-a7e17ee28afd/bin/uautomizer-verify-VRDe98Ueme/data/abe338c07/d4a37c484beb4351a850b5236f13f77b [2023-11-26 12:00:25,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:00:25,411 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:00:25,416 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:25,416 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:00:25,422 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:00:25,423 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:25,424 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2da52f0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25, skipping insertion in model container [2023-11-26 12:00:25,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:25,499 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:00:25,829 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:25,843 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:00:25,854 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-11-26 12:00:25,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2023-11-26 12:00:25,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [198] [2023-11-26 12:00:25,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [207] [2023-11-26 12:00:25,857 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [573] [2023-11-26 12:00:25,857 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [672] [2023-11-26 12:00:25,857 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [915] [2023-11-26 12:00:25,857 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [949] [2023-11-26 12:00:25,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:25,944 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:00:25,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25 WrapperNode [2023-11-26 12:00:25,948 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:25,949 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:25,949 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:00:25,949 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:00:25,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:25,995 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:26,058 INFO L138 Inliner]: procedures = 57, calls = 106, calls flagged for inlining = 59, calls inlined = 145, statements flattened = 991 [2023-11-26 12:00:26,058 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:26,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:00:26,059 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:00:26,060 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:00:26,087 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:26,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:26,112 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:26,167 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 12:00:26,167 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:26,168 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:26,187 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:26,197 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:26,200 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:26,204 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:26,210 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:00:26,211 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:00:26,211 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:00:26,211 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:00:26,212 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:26,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:26,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee059f03-1d6c-47ec-b7aa-a7e17ee28afd/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:26,261 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee059f03-1d6c-47ec-b7aa-a7e17ee28afd/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:26,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee059f03-1d6c-47ec-b7aa-a7e17ee28afd/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 12:00:26,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:00:26,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:00:26,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:00:26,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:00:26,453 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:00:26,456 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:00:27,139 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:00:27,157 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:00:27,157 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 12:00:27,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:27 BoogieIcfgContainer [2023-11-26 12:00:27,160 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:00:27,161 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 12:00:27,161 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 12:00:27,165 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 12:00:27,166 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:00:27,166 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 12:00:25" (1/3) ... [2023-11-26 12:00:27,168 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e06714a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 12:00:27, skipping insertion in model container [2023-11-26 12:00:27,168 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:00:27,168 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (2/3) ... [2023-11-26 12:00:27,168 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e06714a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 12:00:27, skipping insertion in model container [2023-11-26 12:00:27,168 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:00:27,169 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:27" (3/3) ... [2023-11-26 12:00:27,170 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product55.cil.c [2023-11-26 12:00:27,256 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 12:00:27,257 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 12:00:27,257 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 12:00:27,257 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 12:00:27,259 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 12:00:27,259 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 12:00:27,259 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 12:00:27,260 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 12:00:27,265 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 283 states, 282 states have (on average 1.3687943262411348) internal successors, (386), 282 states have internal predecessors, (386), 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 12:00:27,318 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 186 [2023-11-26 12:00:27,319 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:27,319 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:27,326 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:27,326 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 12:00:27,327 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 12:00:27,328 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 283 states, 282 states have (on average 1.3687943262411348) internal successors, (386), 282 states have internal predecessors, (386), 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 12:00:27,341 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 186 [2023-11-26 12:00:27,341 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:27,341 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:27,343 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:27,343 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 12:00:27,355 INFO L748 eck$LassoCheckResult]: Stem: 171#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 182#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~9#1, main_~tmp~3#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 22#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 257#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 95#valid_product_returnLabel#1true main_#t~ret33#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1; 169#L659true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 71#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 200#L960-2true [2023-11-26 12:00:27,356 INFO L750 eck$LassoCheckResult]: Loop: 200#L960-2true assume !false; 172#L961true assume test_~splverifierCounter~0#1 < 4; 23#L962true havoc test_#t~nondet51#1;test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 14#L970true assume !(0 != test_~tmp~10#1); 204#L970-2true havoc test_#t~nondet52#1;test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 245#L980true assume !(0 != test_~tmp___0~3#1); 133#L980-2true havoc test_#t~nondet53#1;test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 106#L990true assume 0 != test_~tmp___2~0#1; 211#L996-2true assume { :begin_inline_timeShift } true; 88#L685true assume !(0 != ~pumpRunning~0); 282#L685-2true assume !(0 != ~systemActive~0); 188#L692-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~9#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 223#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 84#L925true assume 0 != __utac_acc__Specification3_spec__1_~tmp~9#1; 135#L931-1true havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 213#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 200#L960-2true [2023-11-26 12:00:27,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:27,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2023-11-26 12:00:27,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:27,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337550380] [2023-11-26 12:00:27,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:27,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:27,488 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:27,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:27,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:27,554 INFO L85 PathProgramCache]: Analyzing trace with hash -397659242, now seen corresponding path program 1 times [2023-11-26 12:00:27,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:27,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303239380] [2023-11-26 12:00:27,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:27,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:27,577 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:27,606 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:27,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:27,608 INFO L85 PathProgramCache]: Analyzing trace with hash 957759834, now seen corresponding path program 1 times [2023-11-26 12:00:27,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:27,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743386499] [2023-11-26 12:00:27,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:27,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:27,881 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 12:00:27,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:27,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743386499] [2023-11-26 12:00:27,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743386499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:27,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:27,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:00:27,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447297389] [2023-11-26 12:00:27,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:27,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:28,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:00:28,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:00:28,036 INFO L87 Difference]: Start difference. First operand has 283 states, 282 states have (on average 1.3687943262411348) internal successors, (386), 282 states have internal predecessors, (386), 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 12:00:28,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:28,253 INFO L93 Difference]: Finished difference Result 617 states and 824 transitions. [2023-11-26 12:00:28,254 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 617 states and 824 transitions. [2023-11-26 12:00:28,270 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 403 [2023-11-26 12:00:28,287 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 617 states to 587 states and 794 transitions. [2023-11-26 12:00:28,291 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 587 [2023-11-26 12:00:28,294 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 587 [2023-11-26 12:00:28,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 587 states and 794 transitions. [2023-11-26 12:00:28,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:28,302 INFO L218 hiAutomatonCegarLoop]: Abstraction has 587 states and 794 transitions. [2023-11-26 12:00:28,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states and 794 transitions. [2023-11-26 12:00:28,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 325. [2023-11-26 12:00:28,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 325 states have (on average 1.3507692307692307) internal successors, (439), 324 states have internal predecessors, (439), 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 12:00:28,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 439 transitions. [2023-11-26 12:00:28,356 INFO L240 hiAutomatonCegarLoop]: Abstraction has 325 states and 439 transitions. [2023-11-26 12:00:28,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:00:28,367 INFO L428 stractBuchiCegarLoop]: Abstraction has 325 states and 439 transitions. [2023-11-26 12:00:28,367 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 12:00:28,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 325 states and 439 transitions. [2023-11-26 12:00:28,372 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 224 [2023-11-26 12:00:28,372 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:28,372 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:28,373 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:28,373 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:28,373 INFO L748 eck$LassoCheckResult]: Stem: 1151#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 1152#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~9#1, main_~tmp~3#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 962#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 963#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1080#valid_product_returnLabel#1 main_#t~ret33#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1; 1081#L659 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1045#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1046#L960-2 [2023-11-26 12:00:28,374 INFO L750 eck$LassoCheckResult]: Loop: 1046#L960-2 assume !false; 1153#L961 assume test_~splverifierCounter~0#1 < 4; 964#L962 havoc test_#t~nondet51#1;test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 944#L970 assume !(0 != test_~tmp~10#1); 946#L970-2 havoc test_#t~nondet52#1;test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 1172#L980 assume !(0 != test_~tmp___0~3#1); 1122#L980-2 havoc test_#t~nondet53#1;test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 1091#L990 assume 0 != test_~tmp___2~0#1; 933#L996-2 assume { :begin_inline_timeShift } true; 1070#L685 assume !(0 != ~pumpRunning~0); 990#L685-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 999#L769 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret37#1, isMethaneAlarm_~retValue_acc~10#1;havoc isMethaneAlarm_~retValue_acc~10#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 1000#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret37#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~10#1 := isMethaneAlarm_#t~ret37#1;havoc isMethaneAlarm_#t~ret37#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; 1184#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret36#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret37#1, isMethaneAlarm_~retValue_acc~10#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~6#1 := processEnvironment_#t~ret36#1;havoc processEnvironment_#t~ret36#1; 1168#L773 assume 0 != processEnvironment_~tmp~6#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1038#deactivatePump_returnLabel#2 assume { :end_inline_deactivatePump } true; 1039#L769-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true; 1162#L692-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~9#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 1163#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 1062#L925 assume 0 != __utac_acc__Specification3_spec__1_~tmp~9#1; 927#L931-1 havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1125#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1046#L960-2 [2023-11-26 12:00:28,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:28,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2023-11-26 12:00:28,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:28,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745496037] [2023-11-26 12:00:28,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:28,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:28,386 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:28,397 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:28,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:28,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1505593151, now seen corresponding path program 1 times [2023-11-26 12:00:28,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:28,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99376615] [2023-11-26 12:00:28,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:28,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:28,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:28,422 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 12:00:28,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:28,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99376615] [2023-11-26 12:00:28,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99376615] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:28,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:28,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:28,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289223672] [2023-11-26 12:00:28,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:28,425 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 12:00:28,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:28,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:28,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:28,426 INFO L87 Difference]: Start difference. First operand 325 states and 439 transitions. cyclomatic complexity: 117 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:28,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:28,533 INFO L93 Difference]: Finished difference Result 336 states and 430 transitions. [2023-11-26 12:00:28,533 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 336 states and 430 transitions. [2023-11-26 12:00:28,537 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 237 [2023-11-26 12:00:28,540 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 336 states to 336 states and 430 transitions. [2023-11-26 12:00:28,541 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 336 [2023-11-26 12:00:28,541 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 336 [2023-11-26 12:00:28,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 336 states and 430 transitions. [2023-11-26 12:00:28,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:28,544 INFO L218 hiAutomatonCegarLoop]: Abstraction has 336 states and 430 transitions. [2023-11-26 12:00:28,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states and 430 transitions. [2023-11-26 12:00:28,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2023-11-26 12:00:28,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 336 states have (on average 1.2797619047619047) internal successors, (430), 335 states have internal predecessors, (430), 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 12:00:28,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 430 transitions. [2023-11-26 12:00:28,561 INFO L240 hiAutomatonCegarLoop]: Abstraction has 336 states and 430 transitions. [2023-11-26 12:00:28,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:28,563 INFO L428 stractBuchiCegarLoop]: Abstraction has 336 states and 430 transitions. [2023-11-26 12:00:28,563 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-26 12:00:28,563 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 336 states and 430 transitions. [2023-11-26 12:00:28,566 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 237 [2023-11-26 12:00:28,566 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:28,566 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:28,567 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:28,567 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:28,567 INFO L748 eck$LassoCheckResult]: Stem: 1778#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 1779#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~9#1, main_~tmp~3#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1614#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1615#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1715#valid_product_returnLabel#1 main_#t~ret33#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1; 1716#L659 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1685#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1686#L960-2 [2023-11-26 12:00:28,568 INFO L750 eck$LassoCheckResult]: Loop: 1686#L960-2 assume !false; 1780#L961 assume test_~splverifierCounter~0#1 < 4; 1781#L962 havoc test_#t~nondet51#1;test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1898#L970 assume !(0 != test_~tmp~10#1); 1896#L970-2 havoc test_#t~nondet52#1;test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 1810#L980 assume !(0 != test_~tmp___0~3#1); 1753#L980-2 havoc test_#t~nondet53#1;test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 1727#L990 assume 0 != test_~tmp___2~0#1; 1596#L996-2 assume { :begin_inline_timeShift } true; 1707#L685 assume !(0 != ~pumpRunning~0); 1708#L685-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1646#L769 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret35#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1; 1647#L743-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 1684#L717-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 1739#L179-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 1767#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 1762#L871-9 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1624#L871-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 1625#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret34#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret34#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1; 1750#L721-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1737#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 1738#L717-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1761#L743-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret35#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1681#L769-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true; 1790#L692-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~9#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 1791#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 1800#L925 assume 0 != __utac_acc__Specification3_spec__1_~tmp~9#1; 1884#L931-1 havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1797#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1686#L960-2 [2023-11-26 12:00:28,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:28,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2023-11-26 12:00:28,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:28,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811263381] [2023-11-26 12:00:28,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:28,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:28,578 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:28,588 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:28,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:28,589 INFO L85 PathProgramCache]: Analyzing trace with hash -435650681, now seen corresponding path program 1 times [2023-11-26 12:00:28,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:28,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363476571] [2023-11-26 12:00:28,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:28,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:28,597 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:28,607 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:28,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:28,608 INFO L85 PathProgramCache]: Analyzing trace with hash -561385405, now seen corresponding path program 1 times [2023-11-26 12:00:28,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:28,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206702934] [2023-11-26 12:00:28,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:28,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:28,839 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 12:00:28,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:28,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206702934] [2023-11-26 12:00:28,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206702934] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:28,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:28,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:00:28,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911757811] [2023-11-26 12:00:28,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:29,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:29,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:00:29,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:00:29,036 INFO L87 Difference]: Start difference. First operand 336 states and 430 transitions. cyclomatic complexity: 97 Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 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 12:00:29,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:29,174 INFO L93 Difference]: Finished difference Result 800 states and 1011 transitions. [2023-11-26 12:00:29,174 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 800 states and 1011 transitions. [2023-11-26 12:00:29,183 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 575 [2023-11-26 12:00:29,191 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 800 states to 800 states and 1011 transitions. [2023-11-26 12:00:29,191 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 800 [2023-11-26 12:00:29,192 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 800 [2023-11-26 12:00:29,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 800 states and 1011 transitions. [2023-11-26 12:00:29,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:29,194 INFO L218 hiAutomatonCegarLoop]: Abstraction has 800 states and 1011 transitions. [2023-11-26 12:00:29,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states and 1011 transitions. [2023-11-26 12:00:29,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 665. [2023-11-26 12:00:29,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 665 states have (on average 1.2646616541353384) internal successors, (841), 664 states have internal predecessors, (841), 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 12:00:29,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 841 transitions. [2023-11-26 12:00:29,221 INFO L240 hiAutomatonCegarLoop]: Abstraction has 665 states and 841 transitions. [2023-11-26 12:00:29,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:00:29,223 INFO L428 stractBuchiCegarLoop]: Abstraction has 665 states and 841 transitions. [2023-11-26 12:00:29,223 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-26 12:00:29,223 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 665 states and 841 transitions. [2023-11-26 12:00:29,228 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 474 [2023-11-26 12:00:29,228 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:29,229 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:29,230 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:29,230 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:29,230 INFO L748 eck$LassoCheckResult]: Stem: 2953#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 2954#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~9#1, main_~tmp~3#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 2764#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2765#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 2872#valid_product_returnLabel#1 main_#t~ret33#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1; 2873#L659 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 2836#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2837#L960-2 [2023-11-26 12:00:29,230 INFO L750 eck$LassoCheckResult]: Loop: 2837#L960-2 assume !false; 2955#L961 assume test_~splverifierCounter~0#1 < 4; 2766#L962 havoc test_#t~nondet51#1;test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 2755#L970 assume !(0 != test_~tmp~10#1); 2757#L970-2 havoc test_#t~nondet52#1;test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 2983#L980 assume !(0 != test_~tmp___0~3#1); 2917#L980-2 havoc test_#t~nondet53#1;test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 2884#L990 assume 0 != test_~tmp___2~0#1; 2746#L996-2 assume { :begin_inline_timeShift } true; 2860#L685 assume !(0 != ~pumpRunning~0); 2861#L685-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 2797#L769 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret35#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1; 2798#L743-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 2835#L717-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 2896#L179-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 2939#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 2929#L871-9 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~0#1 := 0; 2774#L871-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 2775#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret34#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret34#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1; 2912#L721-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2914#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 3382#L717-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3370#L743-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret35#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 3368#L769-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true; 2971#L692-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~9#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 2972#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 2851#L925 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~9#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~3#1;havoc getWaterLevel_~retValue_acc~3#1;getWaterLevel_~retValue_acc~3#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1; 2852#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~3#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 2740#L931 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 2742#L931-1 havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2921#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2837#L960-2 [2023-11-26 12:00:29,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:29,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2023-11-26 12:00:29,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:29,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740556008] [2023-11-26 12:00:29,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:29,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:29,240 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:29,248 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:29,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:29,249 INFO L85 PathProgramCache]: Analyzing trace with hash -2047278596, now seen corresponding path program 1 times [2023-11-26 12:00:29,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:29,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657233806] [2023-11-26 12:00:29,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:29,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:29,258 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:29,266 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:29,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:29,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1675703224, now seen corresponding path program 1 times [2023-11-26 12:00:29,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:29,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742752119] [2023-11-26 12:00:29,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:29,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:29,281 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:29,296 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:30,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:30,434 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:30,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 12:00:30 BoogieIcfgContainer [2023-11-26 12:00:30,509 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 12:00:30,509 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:00:30,509 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:00:30,510 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:00:30,510 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:27" (3/4) ... [2023-11-26 12:00:30,511 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-26 12:00:30,600 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee059f03-1d6c-47ec-b7aa-a7e17ee28afd/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 12:00:30,601 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:00:30,601 INFO L158 Benchmark]: Toolchain (without parser) took 5190.74ms. Allocated memory was 153.1MB in the beginning and 190.8MB in the end (delta: 37.7MB). Free memory was 115.2MB in the beginning and 83.5MB in the end (delta: 31.7MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. [2023-11-26 12:00:30,602 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:00:30,602 INFO L158 Benchmark]: CACSL2BoogieTranslator took 532.03ms. Allocated memory is still 153.1MB. Free memory was 115.2MB in the beginning and 95.5MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-26 12:00:30,603 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.85ms. Allocated memory is still 153.1MB. Free memory was 95.5MB in the beginning and 90.7MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:00:30,603 INFO L158 Benchmark]: Boogie Preprocessor took 150.97ms. Allocated memory is still 153.1MB. Free memory was 90.7MB in the beginning and 119.9MB in the end (delta: -29.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:00:30,603 INFO L158 Benchmark]: RCFGBuilder took 948.83ms. Allocated memory is still 153.1MB. Free memory was 119.9MB in the beginning and 84.3MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-26 12:00:30,604 INFO L158 Benchmark]: BuchiAutomizer took 3348.09ms. Allocated memory was 153.1MB in the beginning and 190.8MB in the end (delta: 37.7MB). Free memory was 84.3MB in the beginning and 86.6MB in the end (delta: -2.3MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2023-11-26 12:00:30,604 INFO L158 Benchmark]: Witness Printer took 91.44ms. Allocated memory is still 190.8MB. Free memory was 86.6MB in the beginning and 83.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:00:30,606 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 532.03ms. Allocated memory is still 153.1MB. Free memory was 115.2MB in the beginning and 95.5MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.85ms. Allocated memory is still 153.1MB. Free memory was 95.5MB in the beginning and 90.7MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 150.97ms. Allocated memory is still 153.1MB. Free memory was 90.7MB in the beginning and 119.9MB in the end (delta: -29.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 948.83ms. Allocated memory is still 153.1MB. Free memory was 119.9MB in the beginning and 84.3MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 3348.09ms. Allocated memory was 153.1MB in the beginning and 190.8MB in the end (delta: 37.7MB). Free memory was 84.3MB in the beginning and 86.6MB in the end (delta: -2.3MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. * Witness Printer took 91.44ms. Allocated memory is still 190.8MB. Free memory was 86.6MB in the beginning and 83.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] - GenericResultAtLocation [Line: 198]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [198] - GenericResultAtLocation [Line: 207]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [207] - GenericResultAtLocation [Line: 573]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [573] - GenericResultAtLocation [Line: 672]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [672] - GenericResultAtLocation [Line: 915]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [915] - GenericResultAtLocation [Line: 949]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [949] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 665 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. Construction of modules took 0.2s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 397 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, 2553 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2553 mSDsluCounter, 3535 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2446 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 152 IncrementalHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 1089 mSDtfsCounter, 152 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 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: 960]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L96] int waterLevel = 1; [L97] int methaneLevelCritical = 0; [L377] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L574] int cleanupTimeShifts = 4; [L677] int pumpRunning = 0; [L678] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L650] int retValue_acc ; [L651] int tmp ; [L655] FCALL select_helpers() [L656] FCALL select_features() [L657] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L657] RET, EXPR valid_product() [L657] tmp = valid_product() [L659] COND TRUE \read(tmp) [L661] FCALL setup() [L662] CALL runTest() [L644] CALL test() [L951] int splverifierCounter ; [L952] int tmp ; [L953] int tmp___0 ; [L954] int tmp___1 ; [L955] int tmp___2 ; [L958] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L960] COND TRUE 1 [L962] COND TRUE splverifierCounter < 4 [L968] tmp = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp)) [L978] tmp___0 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___0)) [L988] tmp___2 = __VERIFIER_nondet_int() [L990] COND TRUE \read(tmp___2) [L1005] CALL timeShift() [L685] COND FALSE !(\read(pumpRunning)) [L692] COND TRUE \read(systemActive) [L694] CALL processEnvironment() [L766] int tmp ; [L769] COND FALSE !(\read(pumpRunning)) [L784] CALL processEnvironment__wrappee__lowWaterSensor() [L740] int tmp ; [L743] COND FALSE !(\read(pumpRunning)) [L758] CALL processEnvironment__wrappee__highWaterSensor() [L714] int tmp ; [L717] COND TRUE ! pumpRunning [L719] CALL, EXPR isHighWaterLevel() [L863] int retValue_acc ; [L864] int tmp ; [L865] int tmp___0 ; [L869] CALL, EXPR isHighWaterSensorDry() [L176] int retValue_acc ; [L179] COND TRUE waterLevel < 2 [L180] retValue_acc = 1 [L181] return (retValue_acc); [L869] RET, EXPR isHighWaterSensorDry() [L869] tmp = isHighWaterSensorDry() [L871] COND TRUE \read(tmp) [L872] tmp___0 = 0 [L876] retValue_acc = tmp___0 [L877] return (retValue_acc); [L719] RET, EXPR isHighWaterLevel() [L719] tmp = isHighWaterLevel() [L721] COND FALSE !(\read(tmp)) [L727] FCALL processEnvironment__wrappee__base() [L758] RET processEnvironment__wrappee__highWaterSensor() [L784] RET processEnvironment__wrappee__lowWaterSensor() [L694] RET processEnvironment() [L700] CALL __utac_acc__Specification3_spec__1() [L917] int tmp ; [L918] int tmp___0 ; [L919] int tmp___1 ; [L923] CALL, EXPR isMethaneLevelCritical() [L135] int retValue_acc ; [L138] retValue_acc = methaneLevelCritical [L139] return (retValue_acc); [L923] RET, EXPR isMethaneLevelCritical() [L923] tmp = isMethaneLevelCritical() [L925] COND FALSE !(\read(tmp)) [L929] CALL, EXPR getWaterLevel() [L167] int retValue_acc ; [L170] retValue_acc = waterLevel [L171] return (retValue_acc); [L929] RET, EXPR getWaterLevel() [L929] tmp___0 = getWaterLevel() [L931] COND FALSE !(tmp___0 == 2) [L700] RET __utac_acc__Specification3_spec__1() [L1005] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 960]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L96] int waterLevel = 1; [L97] int methaneLevelCritical = 0; [L377] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L574] int cleanupTimeShifts = 4; [L677] int pumpRunning = 0; [L678] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L650] int retValue_acc ; [L651] int tmp ; [L655] FCALL select_helpers() [L656] FCALL select_features() [L657] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L657] RET, EXPR valid_product() [L657] tmp = valid_product() [L659] COND TRUE \read(tmp) [L661] FCALL setup() [L662] CALL runTest() [L644] CALL test() [L951] int splverifierCounter ; [L952] int tmp ; [L953] int tmp___0 ; [L954] int tmp___1 ; [L955] int tmp___2 ; [L958] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L960] COND TRUE 1 [L962] COND TRUE splverifierCounter < 4 [L968] tmp = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp)) [L978] tmp___0 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___0)) [L988] tmp___2 = __VERIFIER_nondet_int() [L990] COND TRUE \read(tmp___2) [L1005] CALL timeShift() [L685] COND FALSE !(\read(pumpRunning)) [L692] COND TRUE \read(systemActive) [L694] CALL processEnvironment() [L766] int tmp ; [L769] COND FALSE !(\read(pumpRunning)) [L784] CALL processEnvironment__wrappee__lowWaterSensor() [L740] int tmp ; [L743] COND FALSE !(\read(pumpRunning)) [L758] CALL processEnvironment__wrappee__highWaterSensor() [L714] int tmp ; [L717] COND TRUE ! pumpRunning [L719] CALL, EXPR isHighWaterLevel() [L863] int retValue_acc ; [L864] int tmp ; [L865] int tmp___0 ; [L869] CALL, EXPR isHighWaterSensorDry() [L176] int retValue_acc ; [L179] COND TRUE waterLevel < 2 [L180] retValue_acc = 1 [L181] return (retValue_acc); [L869] RET, EXPR isHighWaterSensorDry() [L869] tmp = isHighWaterSensorDry() [L871] COND TRUE \read(tmp) [L872] tmp___0 = 0 [L876] retValue_acc = tmp___0 [L877] return (retValue_acc); [L719] RET, EXPR isHighWaterLevel() [L719] tmp = isHighWaterLevel() [L721] COND FALSE !(\read(tmp)) [L727] FCALL processEnvironment__wrappee__base() [L758] RET processEnvironment__wrappee__highWaterSensor() [L784] RET processEnvironment__wrappee__lowWaterSensor() [L694] RET processEnvironment() [L700] CALL __utac_acc__Specification3_spec__1() [L917] int tmp ; [L918] int tmp___0 ; [L919] int tmp___1 ; [L923] CALL, EXPR isMethaneLevelCritical() [L135] int retValue_acc ; [L138] retValue_acc = methaneLevelCritical [L139] return (retValue_acc); [L923] RET, EXPR isMethaneLevelCritical() [L923] tmp = isMethaneLevelCritical() [L925] COND FALSE !(\read(tmp)) [L929] CALL, EXPR getWaterLevel() [L167] int retValue_acc ; [L170] retValue_acc = waterLevel [L171] return (retValue_acc); [L929] RET, EXPR getWaterLevel() [L929] tmp___0 = getWaterLevel() [L931] COND FALSE !(tmp___0 == 2) [L700] RET __utac_acc__Specification3_spec__1() [L1005] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-26 12:00:30,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee059f03-1d6c-47ec-b7aa-a7e17ee28afd/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)