./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826fb142-1d70-4c35-9437-7b49cd3f7164/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826fb142-1d70-4c35-9437-7b49cd3f7164/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826fb142-1d70-4c35-9437-7b49cd3f7164/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826fb142-1d70-4c35-9437-7b49cd3f7164/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826fb142-1d70-4c35-9437-7b49cd3f7164/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826fb142-1d70-4c35-9437-7b49cd3f7164/bin/uautomizer-verify-bycVGegfSx --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 a5340faf3ec1f0e0bc66d280fc3b45c510e704ff1d108d74101ee8606e665888 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:03:05,179 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:03:05,287 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826fb142-1d70-4c35-9437-7b49cd3f7164/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-21 21:03:05,293 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:03:05,294 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:03:05,318 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:03:05,319 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:03:05,320 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:03:05,321 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:03:05,322 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:03:05,323 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:03:05,324 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:03:05,324 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:03:05,325 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 21:03:05,326 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 21:03:05,326 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 21:03:05,327 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 21:03:05,327 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 21:03:05,328 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 21:03:05,329 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:03:05,329 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 21:03:05,330 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 21:03:05,331 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:03:05,332 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 21:03:05,332 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:03:05,333 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 21:03:05,333 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 21:03:05,334 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 21:03:05,335 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 21:03:05,335 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 21:03:05,336 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:03:05,336 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 21:03:05,337 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:03:05,337 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:03:05,338 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:03:05,339 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:03:05,339 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:03:05,340 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 21:03:05,340 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_826fb142-1d70-4c35-9437-7b49cd3f7164/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826fb142-1d70-4c35-9437-7b49cd3f7164/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5340faf3ec1f0e0bc66d280fc3b45c510e704ff1d108d74101ee8606e665888 [2023-11-21 21:03:05,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:03:05,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:03:05,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:03:05,736 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:03:05,738 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:03:05,739 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826fb142-1d70-4c35-9437-7b49cd3f7164/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c [2023-11-21 21:03:08,840 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:03:09,082 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:03:09,082 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826fb142-1d70-4c35-9437-7b49cd3f7164/sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c [2023-11-21 21:03:09,098 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826fb142-1d70-4c35-9437-7b49cd3f7164/bin/uautomizer-verify-bycVGegfSx/data/8be615854/da9183ca7d8349b1aa2bdbef4d3a1b17/FLAGce5043cf3 [2023-11-21 21:03:09,125 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826fb142-1d70-4c35-9437-7b49cd3f7164/bin/uautomizer-verify-bycVGegfSx/data/8be615854/da9183ca7d8349b1aa2bdbef4d3a1b17 [2023-11-21 21:03:09,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:03:09,133 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:03:09,135 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:03:09,135 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:03:09,141 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:03:09,142 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:03:09" (1/1) ... [2023-11-21 21:03:09,143 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29628353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:09, skipping insertion in model container [2023-11-21 21:03:09,144 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:03:09" (1/1) ... [2023-11-21 21:03:09,197 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:03:09,618 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:03:09,631 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:03:09,641 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2023-11-21 21:03:09,643 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] [2023-11-21 21:03:09,643 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] [2023-11-21 21:03:09,643 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [347] [2023-11-21 21:03:09,644 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] [2023-11-21 21:03:09,644 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [519] [2023-11-21 21:03:09,644 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [545] [2023-11-21 21:03:09,645 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [911] [2023-11-21 21:03:09,766 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:03:09,790 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:03:09,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:09 WrapperNode [2023-11-21 21:03:09,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:03:09,793 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:03:09,796 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:03:09,798 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:03:09,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:09" (1/1) ... [2023-11-21 21:03:09,827 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:09" (1/1) ... [2023-11-21 21:03:09,903 INFO L138 Inliner]: procedures = 57, calls = 105, calls flagged for inlining = 58, calls inlined = 176, statements flattened = 1203 [2023-11-21 21:03:09,903 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:03:09,904 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:03:09,904 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:03:09,905 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:03:09,916 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:09" (1/1) ... [2023-11-21 21:03:09,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:09" (1/1) ... [2023-11-21 21:03:09,923 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:09" (1/1) ... [2023-11-21 21:03:09,945 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 21:03:09,945 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:09" (1/1) ... [2023-11-21 21:03:09,945 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:09" (1/1) ... [2023-11-21 21:03:09,969 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:09" (1/1) ... [2023-11-21 21:03:09,980 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:09" (1/1) ... [2023-11-21 21:03:09,984 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:09" (1/1) ... [2023-11-21 21:03:09,989 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:09" (1/1) ... [2023-11-21 21:03:09,996 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:03:09,997 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:03:09,997 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:03:09,998 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:03:09,999 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:09" (1/1) ... [2023-11-21 21:03:10,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:03:10,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826fb142-1d70-4c35-9437-7b49cd3f7164/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:03:10,052 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826fb142-1d70-4c35-9437-7b49cd3f7164/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:03:10,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826fb142-1d70-4c35-9437-7b49cd3f7164/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 21:03:10,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:03:10,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 21:03:10,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:03:10,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:03:10,228 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:03:10,230 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:03:11,167 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:03:11,186 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:03:11,186 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 21:03:11,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:03:11 BoogieIcfgContainer [2023-11-21 21:03:11,188 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:03:11,222 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 21:03:11,223 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 21:03:11,226 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 21:03:11,227 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 21:03:11,227 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 09:03:09" (1/3) ... [2023-11-21 21:03:11,234 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a894e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 09:03:11, skipping insertion in model container [2023-11-21 21:03:11,234 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 21:03:11,235 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:09" (2/3) ... [2023-11-21 21:03:11,236 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a894e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 09:03:11, skipping insertion in model container [2023-11-21 21:03:11,237 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 21:03:11,238 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:03:11" (3/3) ... [2023-11-21 21:03:11,239 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product61.cil.c [2023-11-21 21:03:11,345 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 21:03:11,345 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 21:03:11,346 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 21:03:11,346 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 21:03:11,346 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 21:03:11,346 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 21:03:11,346 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 21:03:11,347 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 21:03:11,353 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 321 states, 320 states have (on average 1.35) internal successors, (432), 320 states have internal predecessors, (432), 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) [2023-11-21 21:03:11,392 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 210 [2023-11-21 21:03:11,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:03:11,393 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:03:11,400 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:03:11,401 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:03:11,401 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 21:03:11,402 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 321 states, 320 states have (on average 1.35) internal successors, (432), 320 states have internal predecessors, (432), 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) [2023-11-21 21:03:11,423 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 210 [2023-11-21 21:03:11,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:03:11,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:03:11,425 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:03:11,425 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:03:11,431 INFO L748 eck$LassoCheckResult]: Stem: 179#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 194#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 28#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 286#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; 108#valid_product_returnLabel#1true main_#t~ret54#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 294#L994true assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 85#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 285#L361-2true [2023-11-21 21:03:11,431 INFO L750 eck$LassoCheckResult]: Loop: 285#L361-2true assume !false; 145#L362true assume test_~splverifierCounter~0#1 < 4; 151#L363true havoc test_#t~nondet20#1;test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 231#L371true assume !(0 != test_~tmp~6#1); 201#L371-2true havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 82#L381true assume !(0 != test_~tmp___0~2#1); 99#L381-2true havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 102#L391true assume 0 != test_~tmp___2~0#1; 165#L397-2true assume { :begin_inline_timeShift } true; 71#L115true assume !(0 != ~pumpRunning~0); 222#L115-2true assume !(0 != ~systemActive~0); 45#L122-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 227#getWaterLevel_returnLabel#1true __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 197#L528true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 56#L528-1true havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 228#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 285#L361-2true [2023-11-21 21:03:11,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:11,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2023-11-21 21:03:11,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:11,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848769709] [2023-11-21 21:03:11,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:11,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:03:11,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:03:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:03:11,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:03:11,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:11,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1828260678, now seen corresponding path program 1 times [2023-11-21 21:03:11,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:11,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191805746] [2023-11-21 21:03:11,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:11,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:11,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:03:11,619 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:03:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:03:11,629 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:03:11,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:11,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1111287542, now seen corresponding path program 1 times [2023-11-21 21:03:11,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:11,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88431635] [2023-11-21 21:03:11,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:11,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:03:11,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:03:11,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:03:11,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88431635] [2023-11-21 21:03:11,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88431635] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:03:11,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:03:11,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:03:11,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421079918] [2023-11-21 21:03:11,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:03:12,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:03:12,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 21:03:12,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:03:12,095 INFO L87 Difference]: Start difference. First operand has 321 states, 320 states have (on average 1.35) internal successors, (432), 320 states have internal predecessors, (432), 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) [2023-11-21 21:03:12,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:03:12,201 INFO L93 Difference]: Finished difference Result 315 states and 415 transitions. [2023-11-21 21:03:12,202 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 315 states and 415 transitions. [2023-11-21 21:03:12,209 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 204 [2023-11-21 21:03:12,217 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 315 states to 305 states and 405 transitions. [2023-11-21 21:03:12,218 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 305 [2023-11-21 21:03:12,219 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 305 [2023-11-21 21:03:12,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 305 states and 405 transitions. [2023-11-21 21:03:12,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:03:12,223 INFO L218 hiAutomatonCegarLoop]: Abstraction has 305 states and 405 transitions. [2023-11-21 21:03:12,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states and 405 transitions. [2023-11-21 21:03:12,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2023-11-21 21:03:12,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 305 states have (on average 1.3278688524590163) internal successors, (405), 304 states have internal predecessors, (405), 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) [2023-11-21 21:03:12,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 405 transitions. [2023-11-21 21:03:12,270 INFO L240 hiAutomatonCegarLoop]: Abstraction has 305 states and 405 transitions. [2023-11-21 21:03:12,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 21:03:12,274 INFO L428 stractBuchiCegarLoop]: Abstraction has 305 states and 405 transitions. [2023-11-21 21:03:12,275 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-21 21:03:12,275 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 305 states and 405 transitions. [2023-11-21 21:03:12,278 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 204 [2023-11-21 21:03:12,278 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:03:12,278 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:03:12,279 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:03:12,279 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] [2023-11-21 21:03:12,280 INFO L748 eck$LassoCheckResult]: Stem: 911#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 912#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 708#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 709#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; 840#valid_product_returnLabel#1 main_#t~ret54#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 841#L994 assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 810#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 811#L361-2 [2023-11-21 21:03:12,280 INFO L750 eck$LassoCheckResult]: Loop: 811#L361-2 assume !false; 879#L362 assume test_~splverifierCounter~0#1 < 4; 880#L363 havoc test_#t~nondet20#1;test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 888#L371 assume !(0 != test_~tmp~6#1); 921#L371-2 havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 806#L381 assume !(0 != test_~tmp___0~2#1); 808#L381-2 havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 827#L391 assume 0 != test_~tmp___2~0#1; 832#L397-2 assume { :begin_inline_timeShift } true; 787#L115 assume !(0 != ~pumpRunning~0); 788#L115-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 932#L199 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret9#1, isMethaneAlarm_~retValue_acc~2#1;havoc isMethaneAlarm_~retValue_acc~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 934#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret9#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~2#1 := isMethaneAlarm_#t~ret9#1;havoc isMethaneAlarm_#t~ret9#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; 955#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret7#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret9#1, isMethaneAlarm_~retValue_acc~2#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret7#1;havoc processEnvironment_#t~ret7#1; 712#L203 assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 713#deactivatePump_returnLabel#1 assume { :end_inline_deactivatePump } true; 867#L199-1 havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 743#L122-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 744#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 926#L528 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 764#L528-1 havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 765#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 811#L361-2 [2023-11-21 21:03:12,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:12,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2023-11-21 21:03:12,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:12,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066062652] [2023-11-21 21:03:12,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:12,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:03:12,293 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:03:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:03:12,305 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:03:12,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:12,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1370686159, now seen corresponding path program 1 times [2023-11-21 21:03:12,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:12,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859088997] [2023-11-21 21:03:12,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:12,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:03:12,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:03:12,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:03:12,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859088997] [2023-11-21 21:03:12,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859088997] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:03:12,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:03:12,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 21:03:12,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510187347] [2023-11-21 21:03:12,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:03:12,336 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-21 21:03:12,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:03:12,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:03:12,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:03:12,337 INFO L87 Difference]: Start difference. First operand 305 states and 405 transitions. cyclomatic complexity: 102 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) [2023-11-21 21:03:12,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:03:12,482 INFO L93 Difference]: Finished difference Result 312 states and 392 transitions. [2023-11-21 21:03:12,482 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 312 states and 392 transitions. [2023-11-21 21:03:12,486 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2023-11-21 21:03:12,490 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 312 states to 312 states and 392 transitions. [2023-11-21 21:03:12,490 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 312 [2023-11-21 21:03:12,491 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 312 [2023-11-21 21:03:12,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 312 states and 392 transitions. [2023-11-21 21:03:12,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:03:12,493 INFO L218 hiAutomatonCegarLoop]: Abstraction has 312 states and 392 transitions. [2023-11-21 21:03:12,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states and 392 transitions. [2023-11-21 21:03:12,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2023-11-21 21:03:12,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 312 states have (on average 1.2564102564102564) internal successors, (392), 311 states have internal predecessors, (392), 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) [2023-11-21 21:03:12,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 392 transitions. [2023-11-21 21:03:12,508 INFO L240 hiAutomatonCegarLoop]: Abstraction has 312 states and 392 transitions. [2023-11-21 21:03:12,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:03:12,509 INFO L428 stractBuchiCegarLoop]: Abstraction has 312 states and 392 transitions. [2023-11-21 21:03:12,510 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-21 21:03:12,510 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 312 states and 392 transitions. [2023-11-21 21:03:12,512 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2023-11-21 21:03:12,513 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:03:12,513 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:03:12,514 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:03:12,514 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] [2023-11-21 21:03:12,514 INFO L748 eck$LassoCheckResult]: Stem: 1479#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1480#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 1308#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1309#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; 1421#valid_product_returnLabel#1 main_#t~ret54#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 1422#L994 assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 1394#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1395#L361-2 [2023-11-21 21:03:12,515 INFO L750 eck$LassoCheckResult]: Loop: 1395#L361-2 assume !false; 1448#L362 assume test_~splverifierCounter~0#1 < 4; 1449#L363 havoc test_#t~nondet20#1;test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 1456#L371 assume !(0 != test_~tmp~6#1); 1488#L371-2 havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 1390#L381 assume !(0 != test_~tmp___0~2#1); 1392#L381-2 havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 1408#L391 assume 0 != test_~tmp___2~0#1; 1413#L397-2 assume { :begin_inline_timeShift } true; 1377#L115 assume !(0 != ~pumpRunning~0); 1378#L115-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1505#L199 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 1506#L173-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 1322#L147-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1323#L500-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1485#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1; 1476#L318-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1457#L318-11 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 1458#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1; 1425#L151-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1427#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 1430#L147-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1490#L173-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1438#L199-1 havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 1336#L122-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 1337#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 1498#L528 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 1355#L528-1 havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1356#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1395#L361-2 [2023-11-21 21:03:12,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:12,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2023-11-21 21:03:12,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:12,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722925172] [2023-11-21 21:03:12,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:12,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:03:12,526 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:03:12,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:03:12,538 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:03:12,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:12,539 INFO L85 PathProgramCache]: Analyzing trace with hash -2054197512, now seen corresponding path program 1 times [2023-11-21 21:03:12,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:12,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750739306] [2023-11-21 21:03:12,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:12,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:03:12,584 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:03:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:03:12,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:03:12,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:12,599 INFO L85 PathProgramCache]: Analyzing trace with hash 2115035060, now seen corresponding path program 1 times [2023-11-21 21:03:12,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:12,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054368297] [2023-11-21 21:03:12,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:12,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:03:12,617 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:03:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:03:12,639 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:03:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:03:13,938 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:03:13,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:03:14,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 09:03:14 BoogieIcfgContainer [2023-11-21 21:03:14,022 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 21:03:14,023 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:03:14,024 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:03:14,024 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:03:14,025 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:03:11" (3/4) ... [2023-11-21 21:03:14,026 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-21 21:03:14,125 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826fb142-1d70-4c35-9437-7b49cd3f7164/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 21:03:14,125 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:03:14,127 INFO L158 Benchmark]: Toolchain (without parser) took 4992.79ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 135.4MB in the beginning and 138.2MB in the end (delta: -2.8MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2023-11-21 21:03:14,127 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:03:14,128 INFO L158 Benchmark]: CACSL2BoogieTranslator took 656.95ms. Allocated memory is still 172.0MB. Free memory was 134.9MB in the beginning and 127.9MB in the end (delta: 7.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 21:03:14,128 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.98ms. Allocated memory is still 172.0MB. Free memory was 127.9MB in the beginning and 122.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 21:03:14,129 INFO L158 Benchmark]: Boogie Preprocessor took 92.10ms. Allocated memory is still 172.0MB. Free memory was 122.7MB in the beginning and 116.9MB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 21:03:14,129 INFO L158 Benchmark]: RCFGBuilder took 1191.50ms. Allocated memory is still 172.0MB. Free memory was 116.9MB in the beginning and 77.1MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-21 21:03:14,130 INFO L158 Benchmark]: BuchiAutomizer took 2799.96ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 138.0MB in the beginning and 141.2MB in the end (delta: -3.2MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2023-11-21 21:03:14,130 INFO L158 Benchmark]: Witness Printer took 101.83ms. Allocated memory is still 207.6MB. Free memory was 141.2MB in the beginning and 138.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:03:14,133 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 656.95ms. Allocated memory is still 172.0MB. Free memory was 134.9MB in the beginning and 127.9MB in the end (delta: 7.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.98ms. Allocated memory is still 172.0MB. Free memory was 127.9MB in the beginning and 122.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.10ms. Allocated memory is still 172.0MB. Free memory was 122.7MB in the beginning and 116.9MB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1191.50ms. Allocated memory is still 172.0MB. Free memory was 116.9MB in the beginning and 77.1MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 2799.96ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 138.0MB in the beginning and 141.2MB in the end (delta: -3.2MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * Witness Printer took 101.83ms. Allocated memory is still 207.6MB. Free memory was 141.2MB in the beginning and 138.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] - GenericResultAtLocation [Line: 347]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [347] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] - GenericResultAtLocation [Line: 519]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [519] - GenericResultAtLocation [Line: 545]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [545] - GenericResultAtLocation [Line: 911]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [911] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 312 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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, 1855 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1855 mSDsluCounter, 831 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 130 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 701 mSDtfsCounter, 51 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 361]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L107] int pumpRunning = 0; [L108] int systemActive = 1; [L417] int waterLevel = 1; [L418] int methaneLevelCritical = 0; [L715] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L912] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L985] int retValue_acc ; [L986] int tmp ; [L990] FCALL select_helpers() [L991] FCALL select_features() [L992] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L992] RET, EXPR valid_product() [L992] tmp = valid_product() [L994] COND TRUE \read(tmp) [L996] FCALL setup() [L997] CALL runTest() [L979] CALL test() [L352] int splverifierCounter ; [L353] int tmp ; [L354] int tmp___0 ; [L355] int tmp___1 ; [L356] int tmp___2 ; [L359] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L361] COND TRUE 1 [L363] COND TRUE splverifierCounter < 4 [L369] tmp = __VERIFIER_nondet_int() [L371] COND FALSE !(\read(tmp)) [L379] tmp___0 = __VERIFIER_nondet_int() [L381] COND FALSE !(\read(tmp___0)) [L389] tmp___2 = __VERIFIER_nondet_int() [L391] COND TRUE \read(tmp___2) [L404] CALL timeShift() [L115] COND FALSE !(\read(pumpRunning)) [L122] COND TRUE \read(systemActive) [L124] CALL processEnvironment() [L196] int tmp ; [L199] COND FALSE !(\read(pumpRunning)) [L214] CALL processEnvironment__wrappee__methaneQuery() [L170] int tmp ; [L173] COND FALSE !(\read(pumpRunning)) [L188] CALL processEnvironment__wrappee__highWaterSensor() [L144] int tmp ; [L147] COND TRUE ! pumpRunning [L149] CALL, EXPR isHighWaterLevel() [L310] int retValue_acc ; [L311] int tmp ; [L312] int tmp___0 ; [L316] CALL, EXPR isHighWaterSensorDry() [L497] int retValue_acc ; [L500] COND TRUE waterLevel < 2 [L501] retValue_acc = 1 [L502] return (retValue_acc); [L316] RET, EXPR isHighWaterSensorDry() [L316] tmp = isHighWaterSensorDry() [L318] COND TRUE \read(tmp) [L319] tmp___0 = 0 [L323] retValue_acc = tmp___0 [L324] return (retValue_acc); [L149] RET, EXPR isHighWaterLevel() [L149] tmp = isHighWaterLevel() [L151] COND FALSE !(\read(tmp)) [L157] FCALL processEnvironment__wrappee__base() [L188] RET processEnvironment__wrappee__highWaterSensor() [L214] RET processEnvironment__wrappee__methaneQuery() [L124] RET processEnvironment() [L130] CALL __utac_acc__Specification4_spec__1() [L521] int tmp ; [L522] int tmp___0 ; [L526] CALL, EXPR getWaterLevel() [L488] int retValue_acc ; [L491] retValue_acc = waterLevel [L492] return (retValue_acc); [L526] RET, EXPR getWaterLevel() [L526] tmp = getWaterLevel() [L528] COND FALSE !(tmp == 0) [L130] RET __utac_acc__Specification4_spec__1() [L404] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 361]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L107] int pumpRunning = 0; [L108] int systemActive = 1; [L417] int waterLevel = 1; [L418] int methaneLevelCritical = 0; [L715] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L912] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L985] int retValue_acc ; [L986] int tmp ; [L990] FCALL select_helpers() [L991] FCALL select_features() [L992] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L992] RET, EXPR valid_product() [L992] tmp = valid_product() [L994] COND TRUE \read(tmp) [L996] FCALL setup() [L997] CALL runTest() [L979] CALL test() [L352] int splverifierCounter ; [L353] int tmp ; [L354] int tmp___0 ; [L355] int tmp___1 ; [L356] int tmp___2 ; [L359] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L361] COND TRUE 1 [L363] COND TRUE splverifierCounter < 4 [L369] tmp = __VERIFIER_nondet_int() [L371] COND FALSE !(\read(tmp)) [L379] tmp___0 = __VERIFIER_nondet_int() [L381] COND FALSE !(\read(tmp___0)) [L389] tmp___2 = __VERIFIER_nondet_int() [L391] COND TRUE \read(tmp___2) [L404] CALL timeShift() [L115] COND FALSE !(\read(pumpRunning)) [L122] COND TRUE \read(systemActive) [L124] CALL processEnvironment() [L196] int tmp ; [L199] COND FALSE !(\read(pumpRunning)) [L214] CALL processEnvironment__wrappee__methaneQuery() [L170] int tmp ; [L173] COND FALSE !(\read(pumpRunning)) [L188] CALL processEnvironment__wrappee__highWaterSensor() [L144] int tmp ; [L147] COND TRUE ! pumpRunning [L149] CALL, EXPR isHighWaterLevel() [L310] int retValue_acc ; [L311] int tmp ; [L312] int tmp___0 ; [L316] CALL, EXPR isHighWaterSensorDry() [L497] int retValue_acc ; [L500] COND TRUE waterLevel < 2 [L501] retValue_acc = 1 [L502] return (retValue_acc); [L316] RET, EXPR isHighWaterSensorDry() [L316] tmp = isHighWaterSensorDry() [L318] COND TRUE \read(tmp) [L319] tmp___0 = 0 [L323] retValue_acc = tmp___0 [L324] return (retValue_acc); [L149] RET, EXPR isHighWaterLevel() [L149] tmp = isHighWaterLevel() [L151] COND FALSE !(\read(tmp)) [L157] FCALL processEnvironment__wrappee__base() [L188] RET processEnvironment__wrappee__highWaterSensor() [L214] RET processEnvironment__wrappee__methaneQuery() [L124] RET processEnvironment() [L130] CALL __utac_acc__Specification4_spec__1() [L521] int tmp ; [L522] int tmp___0 ; [L526] CALL, EXPR getWaterLevel() [L488] int retValue_acc ; [L491] retValue_acc = waterLevel [L492] return (retValue_acc); [L526] RET, EXPR getWaterLevel() [L526] tmp = getWaterLevel() [L528] COND FALSE !(tmp == 0) [L130] RET __utac_acc__Specification4_spec__1() [L404] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 21:03:14,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826fb142-1d70-4c35-9437-7b49cd3f7164/bin/uautomizer-verify-bycVGegfSx/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)