./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product38.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b 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_91c112c4-3b5d-43bd-8386-d1d40830e7ca/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c112c4-3b5d-43bd-8386-d1d40830e7ca/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c112c4-3b5d-43bd-8386-d1d40830e7ca/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c112c4-3b5d-43bd-8386-d1d40830e7ca/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product38.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c112c4-3b5d-43bd-8386-d1d40830e7ca/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c112c4-3b5d-43bd-8386-d1d40830e7ca/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --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 c8e3613a57f37f194f1fe75086d0eb5e0d997c2a9b69c99903e0a1a10a2db5eb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:37:18,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:37:18,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:37:18,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:37:18,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:37:18,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:37:18,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:37:18,083 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:37:18,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:37:18,085 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:37:18,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:37:18,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:37:18,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:37:18,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:37:18,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:37:18,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:37:18,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:37:18,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:37:18,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:37:18,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:37:18,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:37:18,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:37:18,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:37:18,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:37:18,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:37:18,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:37:18,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:37:18,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:37:18,127 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:37:18,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:37:18,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:37:18,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:37:18,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:37:18,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:37:18,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:37:18,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:37:18,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:37:18,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:37:18,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:37:18,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:37:18,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:37:18,138 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c112c4-3b5d-43bd-8386-d1d40830e7ca/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-18 19:37:18,168 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:37:18,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:37:18,171 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:37:18,171 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:37:18,173 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:37:18,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:37:18,174 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:37:18,174 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 19:37:18,174 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 19:37:18,175 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 19:37:18,175 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 19:37:18,175 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 19:37:18,175 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 19:37:18,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:37:18,176 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:37:18,176 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:37:18,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:37:18,176 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:37:18,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:37:18,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 19:37:18,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 19:37:18,177 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 19:37:18,177 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:37:18,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:37:18,178 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 19:37:18,178 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:37:18,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 19:37:18,178 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:37:18,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:37:18,179 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:37:18,179 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:37:18,180 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 19:37:18,180 INFO L138 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_91c112c4-3b5d-43bd-8386-d1d40830e7ca/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c112c4-3b5d-43bd-8386-d1d40830e7ca/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8e3613a57f37f194f1fe75086d0eb5e0d997c2a9b69c99903e0a1a10a2db5eb [2022-11-18 19:37:18,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:37:18,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:37:18,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:37:18,588 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:37:18,589 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:37:18,590 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c112c4-3b5d-43bd-8386-d1d40830e7ca/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/product-lines/minepump_spec3_product38.cil.c [2022-11-18 19:37:18,666 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c112c4-3b5d-43bd-8386-d1d40830e7ca/bin/uautomizer-TMbwUNV5ro/data/3d3f5899b/d94dada3f130454192eb2a7de44a8a05/FLAG415eaf2cb [2022-11-18 19:37:19,203 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:37:19,206 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c112c4-3b5d-43bd-8386-d1d40830e7ca/sv-benchmarks/c/product-lines/minepump_spec3_product38.cil.c [2022-11-18 19:37:19,217 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c112c4-3b5d-43bd-8386-d1d40830e7ca/bin/uautomizer-TMbwUNV5ro/data/3d3f5899b/d94dada3f130454192eb2a7de44a8a05/FLAG415eaf2cb [2022-11-18 19:37:19,512 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c112c4-3b5d-43bd-8386-d1d40830e7ca/bin/uautomizer-TMbwUNV5ro/data/3d3f5899b/d94dada3f130454192eb2a7de44a8a05 [2022-11-18 19:37:19,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:37:19,516 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:37:19,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:37:19,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:37:19,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:37:19,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:37:19" (1/1) ... [2022-11-18 19:37:19,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@175a023c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:19, skipping insertion in model container [2022-11-18 19:37:19,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:37:19" (1/1) ... [2022-11-18 19:37:19,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:37:19,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:37:19,912 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c112c4-3b5d-43bd-8386-d1d40830e7ca/sv-benchmarks/c/product-lines/minepump_spec3_product38.cil.c[15422,15435] [2022-11-18 19:37:19,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:37:19,957 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:37:20,057 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c112c4-3b5d-43bd-8386-d1d40830e7ca/sv-benchmarks/c/product-lines/minepump_spec3_product38.cil.c[15422,15435] [2022-11-18 19:37:20,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:37:20,083 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:37:20,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20 WrapperNode [2022-11-18 19:37:20,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:37:20,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:37:20,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:37:20,086 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:37:20,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (1/1) ... [2022-11-18 19:37:20,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (1/1) ... [2022-11-18 19:37:20,173 INFO L138 Inliner]: procedures = 54, calls = 99, calls flagged for inlining = 52, calls inlined = 81, statements flattened = 561 [2022-11-18 19:37:20,178 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:37:20,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:37:20,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:37:20,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:37:20,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (1/1) ... [2022-11-18 19:37:20,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (1/1) ... [2022-11-18 19:37:20,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (1/1) ... [2022-11-18 19:37:20,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (1/1) ... [2022-11-18 19:37:20,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (1/1) ... [2022-11-18 19:37:20,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (1/1) ... [2022-11-18 19:37:20,209 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (1/1) ... [2022-11-18 19:37:20,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (1/1) ... [2022-11-18 19:37:20,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:37:20,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:37:20,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:37:20,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:37:20,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (1/1) ... [2022-11-18 19:37:20,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:20,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c112c4-3b5d-43bd-8386-d1d40830e7ca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:20,264 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c112c4-3b5d-43bd-8386-d1d40830e7ca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:20,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c112c4-3b5d-43bd-8386-d1d40830e7ca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 19:37:20,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:37:20,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:37:20,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:37:20,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:37:20,383 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:37:20,386 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:37:20,886 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:37:20,894 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:37:20,894 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 19:37:20,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:37:20 BoogieIcfgContainer [2022-11-18 19:37:20,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:37:20,898 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 19:37:20,898 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 19:37:20,903 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 19:37:20,904 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:37:20,904 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 07:37:19" (1/3) ... [2022-11-18 19:37:20,905 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a187541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:37:20, skipping insertion in model container [2022-11-18 19:37:20,905 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:37:20,905 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (2/3) ... [2022-11-18 19:37:20,906 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a187541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:37:20, skipping insertion in model container [2022-11-18 19:37:20,906 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:37:20,906 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:37:20" (3/3) ... [2022-11-18 19:37:20,907 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product38.cil.c [2022-11-18 19:37:20,973 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 19:37:20,973 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 19:37:20,974 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 19:37:20,974 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 19:37:20,974 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 19:37:20,974 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 19:37:20,974 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 19:37:20,974 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 19:37:20,979 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 163 states, 162 states have (on average 1.376543209876543) internal successors, (223), 162 states have internal predecessors, (223), 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) [2022-11-18 19:37:21,007 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2022-11-18 19:37:21,008 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:37:21,008 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:37:21,015 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:21,015 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:21,016 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 19:37:21,016 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 163 states, 162 states have (on average 1.376543209876543) internal successors, (223), 162 states have internal predecessors, (223), 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) [2022-11-18 19:37:21,046 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2022-11-18 19:37:21,046 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:37:21,047 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:37:21,048 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:21,048 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:21,054 INFO L748 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 42#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 71#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 154#L68true 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; 27#L83true main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret44#1;havoc main_#t~ret44#1; 96#L812true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 80#L789true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 124#L103-2true [2022-11-18 19:37:21,055 INFO L750 eck$LassoCheckResult]: Loop: 124#L103-2true assume !false; 22#L104true assume test_~splverifierCounter~0#1 < 4; 21#L105true test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 141#L113true assume !(0 != test_~tmp~0#1); 53#L113-2true test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 25#L123true assume !(0 != test_~tmp___0~0#1); 45#L123-2true test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 140#L133true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 79#L351true assume { :end_inline_startSystem } true; 143#L141-2true assume { :begin_inline_timeShift } true; 46#L176true assume !(0 != ~pumpRunning~0); 159#L176-2true assume !(0 != ~systemActive~0); 116#L183-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 28#L870-1true __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 72#L930true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 14#L936-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 66#L193true assume { :end_inline_timeShift } true; 124#L103-2true [2022-11-18 19:37:21,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:21,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-11-18 19:37:21,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:21,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436152978] [2022-11-18 19:37:21,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:21,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:21,204 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:37:21,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:21,260 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:37:21,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:21,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1343160557, now seen corresponding path program 1 times [2022-11-18 19:37:21,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:21,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305322873] [2022-11-18 19:37:21,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:21,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:21,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:21,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:21,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305322873] [2022-11-18 19:37:21,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305322873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:21,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:21,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:37:21,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746401803] [2022-11-18 19:37:21,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:21,364 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 19:37:21,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:21,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:37:21,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:37:21,405 INFO L87 Difference]: Start difference. First operand has 163 states, 162 states have (on average 1.376543209876543) internal successors, (223), 162 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-18 19:37:21,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:37:21,452 INFO L93 Difference]: Finished difference Result 160 states and 210 transitions. [2022-11-18 19:37:21,454 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 210 transitions. [2022-11-18 19:37:21,458 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 101 [2022-11-18 19:37:21,464 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 150 states and 199 transitions. [2022-11-18 19:37:21,465 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 150 [2022-11-18 19:37:21,466 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 150 [2022-11-18 19:37:21,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 150 states and 199 transitions. [2022-11-18 19:37:21,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:37:21,468 INFO L218 hiAutomatonCegarLoop]: Abstraction has 150 states and 199 transitions. [2022-11-18 19:37:21,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states and 199 transitions. [2022-11-18 19:37:21,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-18 19:37:21,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 150 states have (on average 1.3266666666666667) internal successors, (199), 149 states have internal predecessors, (199), 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) [2022-11-18 19:37:21,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 199 transitions. [2022-11-18 19:37:21,508 INFO L240 hiAutomatonCegarLoop]: Abstraction has 150 states and 199 transitions. [2022-11-18 19:37:21,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:37:21,513 INFO L428 stractBuchiCegarLoop]: Abstraction has 150 states and 199 transitions. [2022-11-18 19:37:21,514 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 19:37:21,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 199 transitions. [2022-11-18 19:37:21,516 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 101 [2022-11-18 19:37:21,517 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:37:21,517 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:37:21,517 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:21,518 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] [2022-11-18 19:37:21,518 INFO L748 eck$LassoCheckResult]: Stem: 480#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 403#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 404#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 441#L68 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; 379#L83 main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret44#1;havoc main_#t~ret44#1; 380#L812 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 449#L789 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 436#L103-2 [2022-11-18 19:37:21,519 INFO L750 eck$LassoCheckResult]: Loop: 436#L103-2 assume !false; 367#L104 assume test_~splverifierCounter~0#1 < 4; 365#L105 test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 366#L113 assume !(0 != test_~tmp~0#1); 423#L113-2 test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 373#L123 assume !(0 != test_~tmp___0~0#1); 375#L123-2 test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 409#L133 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 448#L351 assume { :end_inline_startSystem } true; 420#L141-2 assume { :begin_inline_timeShift } true; 412#L176 assume !(0 != ~pumpRunning~0); 413#L176-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 451#L234 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 452#L208-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 476#L200-3 assume { :end_inline_processEnvironment__wrappee__base } true; 464#L208-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 372#L234-1 assume { :end_inline_processEnvironment } true; 472#L183-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 377#L870-1 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 378#L930 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 349#L936-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 350#L193 assume { :end_inline_timeShift } true; 436#L103-2 [2022-11-18 19:37:21,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:21,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-11-18 19:37:21,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:21,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445312636] [2022-11-18 19:37:21,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:21,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:21,535 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:37:21,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:21,561 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:37:21,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:21,562 INFO L85 PathProgramCache]: Analyzing trace with hash -2104677158, now seen corresponding path program 1 times [2022-11-18 19:37:21,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:21,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689691936] [2022-11-18 19:37:21,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:21,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:21,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:21,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:21,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:21,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689691936] [2022-11-18 19:37:21,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689691936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:21,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:21,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:37:21,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406110215] [2022-11-18 19:37:21,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:21,620 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 19:37:21,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:21,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:37:21,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:37:21,621 INFO L87 Difference]: Start difference. First operand 150 states and 199 transitions. cyclomatic complexity: 51 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) [2022-11-18 19:37:21,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:37:21,720 INFO L93 Difference]: Finished difference Result 212 states and 271 transitions. [2022-11-18 19:37:21,720 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 212 states and 271 transitions. [2022-11-18 19:37:21,723 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 148 [2022-11-18 19:37:21,725 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 212 states to 212 states and 271 transitions. [2022-11-18 19:37:21,725 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 212 [2022-11-18 19:37:21,726 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 212 [2022-11-18 19:37:21,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 212 states and 271 transitions. [2022-11-18 19:37:21,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:37:21,737 INFO L218 hiAutomatonCegarLoop]: Abstraction has 212 states and 271 transitions. [2022-11-18 19:37:21,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states and 271 transitions. [2022-11-18 19:37:21,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2022-11-18 19:37:21,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 212 states have (on average 1.278301886792453) internal successors, (271), 211 states have internal predecessors, (271), 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) [2022-11-18 19:37:21,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 271 transitions. [2022-11-18 19:37:21,751 INFO L240 hiAutomatonCegarLoop]: Abstraction has 212 states and 271 transitions. [2022-11-18 19:37:21,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:37:21,753 INFO L428 stractBuchiCegarLoop]: Abstraction has 212 states and 271 transitions. [2022-11-18 19:37:21,753 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 19:37:21,753 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 212 states and 271 transitions. [2022-11-18 19:37:21,755 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 148 [2022-11-18 19:37:21,763 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:37:21,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:37:21,764 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:21,764 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] [2022-11-18 19:37:21,764 INFO L748 eck$LassoCheckResult]: Stem: 860#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 769#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 770#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 810#L68 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; 744#L83 main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret44#1;havoc main_#t~ret44#1; 745#L812 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 819#L789 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 804#L103-2 [2022-11-18 19:37:21,765 INFO L750 eck$LassoCheckResult]: Loop: 804#L103-2 assume !false; 732#L104 assume test_~splverifierCounter~0#1 < 4; 730#L105 test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 731#L113 assume !(0 != test_~tmp~0#1); 790#L113-2 test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 738#L123 assume !(0 != test_~tmp___0~0#1); 740#L123-2 test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 776#L133 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 818#L351 assume { :end_inline_startSystem } true; 783#L141-2 assume { :begin_inline_timeShift } true; 777#L176 assume !(0 != ~pumpRunning~0); 778#L176-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 821#L234 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 822#L208-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 726#L910-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 727#L915-1 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 712#L336-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 713#L336-5 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 710#L342-1 processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; 711#L212-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 841#L200-2 assume { :end_inline_processEnvironment__wrappee__base } true; 842#L208-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 737#L234-1 assume { :end_inline_processEnvironment } true; 847#L183-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 742#L870-1 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 743#L930 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 718#L936-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 719#L193 assume { :end_inline_timeShift } true; 804#L103-2 [2022-11-18 19:37:21,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:21,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-11-18 19:37:21,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:21,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984084089] [2022-11-18 19:37:21,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:21,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:21,796 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:37:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:21,812 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:37:21,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:21,818 INFO L85 PathProgramCache]: Analyzing trace with hash 2093380530, now seen corresponding path program 1 times [2022-11-18 19:37:21,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:21,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77077600] [2022-11-18 19:37:21,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:21,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:21,843 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:37:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:21,854 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:37:21,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:21,855 INFO L85 PathProgramCache]: Analyzing trace with hash 842398582, now seen corresponding path program 1 times [2022-11-18 19:37:21,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:21,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512591085] [2022-11-18 19:37:21,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:21,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:21,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:21,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:21,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512591085] [2022-11-18 19:37:21,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512591085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:21,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:21,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:37:21,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925034762] [2022-11-18 19:37:21,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:22,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:22,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:37:22,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:37:22,286 INFO L87 Difference]: Start difference. First operand 212 states and 271 transitions. cyclomatic complexity: 61 Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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) [2022-11-18 19:37:22,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:37:22,429 INFO L93 Difference]: Finished difference Result 737 states and 936 transitions. [2022-11-18 19:37:22,429 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 737 states and 936 transitions. [2022-11-18 19:37:22,439 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 543 [2022-11-18 19:37:22,447 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 737 states to 737 states and 936 transitions. [2022-11-18 19:37:22,448 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 737 [2022-11-18 19:37:22,450 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 737 [2022-11-18 19:37:22,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 737 states and 936 transitions. [2022-11-18 19:37:22,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:37:22,457 INFO L218 hiAutomatonCegarLoop]: Abstraction has 737 states and 936 transitions. [2022-11-18 19:37:22,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states and 936 transitions. [2022-11-18 19:37:22,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 417. [2022-11-18 19:37:22,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 417 states have (on average 1.26378896882494) internal successors, (527), 416 states have internal predecessors, (527), 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) [2022-11-18 19:37:22,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 527 transitions. [2022-11-18 19:37:22,505 INFO L240 hiAutomatonCegarLoop]: Abstraction has 417 states and 527 transitions. [2022-11-18 19:37:22,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:37:22,509 INFO L428 stractBuchiCegarLoop]: Abstraction has 417 states and 527 transitions. [2022-11-18 19:37:22,509 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 19:37:22,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 417 states and 527 transitions. [2022-11-18 19:37:22,512 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 296 [2022-11-18 19:37:22,512 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:37:22,512 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:37:22,514 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:22,515 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] [2022-11-18 19:37:22,515 INFO L748 eck$LassoCheckResult]: Stem: 1837#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1738#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 1739#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1783#L68 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; 1712#L83 main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret44#1;havoc main_#t~ret44#1; 1713#L812 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1792#L789 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1776#L103-2 [2022-11-18 19:37:22,516 INFO L750 eck$LassoCheckResult]: Loop: 1776#L103-2 assume !false; 1699#L104 assume test_~splverifierCounter~0#1 < 4; 1700#L105 test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 2082#L113 assume !(0 != test_~tmp~0#1); 2081#L113-2 test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 2080#L123 assume !(0 != test_~tmp___0~0#1); 2078#L123-2 test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 1830#L133 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 1754#L141 assume 0 != test_~tmp___1~0#1; 1755#L141-2 assume { :begin_inline_timeShift } true; 1749#L176 assume !(0 != ~pumpRunning~0); 1750#L176-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1841#L234 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 2039#L208-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 2050#L910-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 2049#L915-1 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 2048#L336-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1766#L336-5 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 1677#L342-1 processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; 1678#L212-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1815#L200-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1817#L208-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1705#L234-1 assume { :end_inline_processEnvironment } true; 1839#L183-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 1999#L870-1 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 1784#L930 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 1785#L902 __utac_acc__Specification3_spec__1_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret51#1;havoc __utac_acc__Specification3_spec__1_#t~ret51#1; 1826#L936 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 2016#L936-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1775#L193 assume { :end_inline_timeShift } true; 1776#L103-2 [2022-11-18 19:37:22,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:22,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-11-18 19:37:22,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:22,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984521741] [2022-11-18 19:37:22,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:22,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:22,540 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:37:22,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:22,555 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:37:22,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:22,555 INFO L85 PathProgramCache]: Analyzing trace with hash 778991908, now seen corresponding path program 1 times [2022-11-18 19:37:22,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:22,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127592218] [2022-11-18 19:37:22,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:22,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:22,573 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:37:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:22,592 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:37:22,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:22,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1176182760, now seen corresponding path program 1 times [2022-11-18 19:37:22,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:22,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053095947] [2022-11-18 19:37:22,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:22,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:22,622 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:37:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:22,640 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:37:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:24,024 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:37:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:24,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 07:37:24 BoogieIcfgContainer [2022-11-18 19:37:24,116 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 19:37:24,116 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:37:24,117 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:37:24,117 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:37:24,117 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:37:20" (3/4) ... [2022-11-18 19:37:24,120 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-18 19:37:24,197 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c112c4-3b5d-43bd-8386-d1d40830e7ca/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:37:24,197 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:37:24,198 INFO L158 Benchmark]: Toolchain (without parser) took 4681.19ms. Allocated memory was 111.1MB in the beginning and 172.0MB in the end (delta: 60.8MB). Free memory was 68.5MB in the beginning and 134.8MB in the end (delta: -66.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:37:24,198 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 111.1MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:37:24,199 INFO L158 Benchmark]: CACSL2BoogieTranslator took 565.84ms. Allocated memory is still 111.1MB. Free memory was 68.3MB in the beginning and 78.4MB in the end (delta: -10.1MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2022-11-18 19:37:24,199 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.16ms. Allocated memory is still 111.1MB. Free memory was 78.4MB in the beginning and 75.0MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:37:24,199 INFO L158 Benchmark]: Boogie Preprocessor took 35.34ms. Allocated memory is still 111.1MB. Free memory was 75.0MB in the beginning and 72.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:37:24,200 INFO L158 Benchmark]: RCFGBuilder took 682.10ms. Allocated memory is still 111.1MB. Free memory was 72.7MB in the beginning and 49.7MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-18 19:37:24,200 INFO L158 Benchmark]: BuchiAutomizer took 3217.87ms. Allocated memory was 111.1MB in the beginning and 172.0MB in the end (delta: 60.8MB). Free memory was 49.7MB in the beginning and 138.0MB in the end (delta: -88.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:37:24,200 INFO L158 Benchmark]: Witness Printer took 80.61ms. Allocated memory is still 172.0MB. Free memory was 138.0MB in the beginning and 134.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:37:24,202 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 111.1MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 565.84ms. Allocated memory is still 111.1MB. Free memory was 68.3MB in the beginning and 78.4MB in the end (delta: -10.1MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.16ms. Allocated memory is still 111.1MB. Free memory was 78.4MB in the beginning and 75.0MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.34ms. Allocated memory is still 111.1MB. Free memory was 75.0MB in the beginning and 72.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 682.10ms. Allocated memory is still 111.1MB. Free memory was 72.7MB in the beginning and 49.7MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 3217.87ms. Allocated memory was 111.1MB in the beginning and 172.0MB in the end (delta: 60.8MB). Free memory was 49.7MB in the beginning and 138.0MB in the end (delta: -88.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 80.61ms. Allocated memory is still 172.0MB. Free memory was 138.0MB in the beginning and 134.8MB 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.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 5 locations. The remainder module has 417 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 320 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1104 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1104 mSDsluCounter, 1721 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1012 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 106 IncrementalHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 709 mSDtfsCounter, 106 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 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: 103]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L524] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L828] int methaneLevelCritical = 0; [L168] int pumpRunning = 0; [L827] int waterLevel = 1; [L169] int systemActive = 1; [L730] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L803] int retValue_acc ; [L804] int tmp ; [L808] FCALL select_helpers() [L809] FCALL select_features() [L810] 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] [L810] RET, EXPR valid_product() [L810] tmp = valid_product() [L812] COND TRUE \read(tmp) [L814] FCALL setup() [L815] CALL runTest() [L797] CALL test() [L94] int splverifierCounter ; [L95] int tmp ; [L96] int tmp___0 ; [L97] int tmp___1 ; [L98] int tmp___2 ; [L101] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L103] COND TRUE 1 [L105] COND TRUE splverifierCounter < 4 [L111] tmp = __VERIFIER_nondet_int() [L113] COND FALSE !(\read(tmp)) [L121] tmp___0 = __VERIFIER_nondet_int() [L123] COND FALSE !(\read(tmp___0)) [L131] tmp___2 = __VERIFIER_nondet_int() [L133] COND FALSE !(\read(tmp___2)) [L139] tmp___1 = __VERIFIER_nondet_int() [L141] COND TRUE \read(tmp___1) [L148] CALL timeShift() [L176] COND FALSE !(\read(pumpRunning)) [L183] COND TRUE \read(systemActive) [L185] CALL processEnvironment() [L231] int tmp ; [L234] COND FALSE !(\read(pumpRunning)) [L249] CALL processEnvironment__wrappee__highWaterSensor() [L205] int tmp ; [L208] COND TRUE ! pumpRunning [L210] CALL, EXPR isHighWaterLevel() [L328] int retValue_acc ; [L329] int tmp ; [L330] int tmp___0 ; [L334] CALL, EXPR isHighWaterSensorDry() [L907] int retValue_acc ; [L910] COND TRUE waterLevel < 2 [L911] retValue_acc = 1 [L912] return (retValue_acc); [L334] RET, EXPR isHighWaterSensorDry() [L334] tmp = isHighWaterSensorDry() [L336] COND TRUE \read(tmp) [L337] tmp___0 = 0 [L341] retValue_acc = tmp___0 [L342] return (retValue_acc); [L210] RET, EXPR isHighWaterLevel() [L210] tmp = isHighWaterLevel() [L212] COND FALSE !(\read(tmp)) [L218] FCALL processEnvironment__wrappee__base() [L249] RET processEnvironment__wrappee__highWaterSensor() [L185] RET processEnvironment() [L191] CALL __utac_acc__Specification3_spec__1() [L922] int tmp ; [L923] int tmp___0 ; [L924] int tmp___1 ; [L928] CALL, EXPR isMethaneLevelCritical() [L866] int retValue_acc ; [L869] retValue_acc = methaneLevelCritical [L870] return (retValue_acc); [L928] RET, EXPR isMethaneLevelCritical() [L928] tmp = isMethaneLevelCritical() [L930] COND FALSE !(\read(tmp)) [L934] CALL, EXPR getWaterLevel() [L898] int retValue_acc ; [L901] retValue_acc = waterLevel [L902] return (retValue_acc); [L934] RET, EXPR getWaterLevel() [L934] tmp___0 = getWaterLevel() [L936] COND FALSE !(tmp___0 == 2) [L191] RET __utac_acc__Specification3_spec__1() [L148] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 103]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L524] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L828] int methaneLevelCritical = 0; [L168] int pumpRunning = 0; [L827] int waterLevel = 1; [L169] int systemActive = 1; [L730] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L803] int retValue_acc ; [L804] int tmp ; [L808] FCALL select_helpers() [L809] FCALL select_features() [L810] 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] [L810] RET, EXPR valid_product() [L810] tmp = valid_product() [L812] COND TRUE \read(tmp) [L814] FCALL setup() [L815] CALL runTest() [L797] CALL test() [L94] int splverifierCounter ; [L95] int tmp ; [L96] int tmp___0 ; [L97] int tmp___1 ; [L98] int tmp___2 ; [L101] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L103] COND TRUE 1 [L105] COND TRUE splverifierCounter < 4 [L111] tmp = __VERIFIER_nondet_int() [L113] COND FALSE !(\read(tmp)) [L121] tmp___0 = __VERIFIER_nondet_int() [L123] COND FALSE !(\read(tmp___0)) [L131] tmp___2 = __VERIFIER_nondet_int() [L133] COND FALSE !(\read(tmp___2)) [L139] tmp___1 = __VERIFIER_nondet_int() [L141] COND TRUE \read(tmp___1) [L148] CALL timeShift() [L176] COND FALSE !(\read(pumpRunning)) [L183] COND TRUE \read(systemActive) [L185] CALL processEnvironment() [L231] int tmp ; [L234] COND FALSE !(\read(pumpRunning)) [L249] CALL processEnvironment__wrappee__highWaterSensor() [L205] int tmp ; [L208] COND TRUE ! pumpRunning [L210] CALL, EXPR isHighWaterLevel() [L328] int retValue_acc ; [L329] int tmp ; [L330] int tmp___0 ; [L334] CALL, EXPR isHighWaterSensorDry() [L907] int retValue_acc ; [L910] COND TRUE waterLevel < 2 [L911] retValue_acc = 1 [L912] return (retValue_acc); [L334] RET, EXPR isHighWaterSensorDry() [L334] tmp = isHighWaterSensorDry() [L336] COND TRUE \read(tmp) [L337] tmp___0 = 0 [L341] retValue_acc = tmp___0 [L342] return (retValue_acc); [L210] RET, EXPR isHighWaterLevel() [L210] tmp = isHighWaterLevel() [L212] COND FALSE !(\read(tmp)) [L218] FCALL processEnvironment__wrappee__base() [L249] RET processEnvironment__wrappee__highWaterSensor() [L185] RET processEnvironment() [L191] CALL __utac_acc__Specification3_spec__1() [L922] int tmp ; [L923] int tmp___0 ; [L924] int tmp___1 ; [L928] CALL, EXPR isMethaneLevelCritical() [L866] int retValue_acc ; [L869] retValue_acc = methaneLevelCritical [L870] return (retValue_acc); [L928] RET, EXPR isMethaneLevelCritical() [L928] tmp = isMethaneLevelCritical() [L930] COND FALSE !(\read(tmp)) [L934] CALL, EXPR getWaterLevel() [L898] int retValue_acc ; [L901] retValue_acc = waterLevel [L902] return (retValue_acc); [L934] RET, EXPR getWaterLevel() [L934] tmp___0 = getWaterLevel() [L936] COND FALSE !(tmp___0 == 2) [L191] RET __utac_acc__Specification3_spec__1() [L148] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-18 19:37:24,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c112c4-3b5d-43bd-8386-d1d40830e7ca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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)