./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product54.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_69cb4b21-2aca-4d08-9a17-89974bf5a47e/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cb4b21-2aca-4d08-9a17-89974bf5a47e/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_69cb4b21-2aca-4d08-9a17-89974bf5a47e/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cb4b21-2aca-4d08-9a17-89974bf5a47e/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product54.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cb4b21-2aca-4d08-9a17-89974bf5a47e/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_69cb4b21-2aca-4d08-9a17-89974bf5a47e/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 af2afe79961dd67a52df68c35bd4350c760cf29ba0bba6313951f2194d2dea76 --- 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 20:35:17,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:35:17,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:35:17,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:35:17,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:35:17,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:35:17,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:35:17,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:35:17,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:35:17,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:35:17,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:35:17,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:35:17,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:35:17,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:35:17,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:35:17,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:35:17,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:35:17,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:35:17,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:35:17,914 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:35:17,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:35:17,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:35:17,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:35:17,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:35:17,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:35:17,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:35:17,923 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:35:17,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:35:17,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:35:17,925 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:35:17,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:35:17,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:35:17,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:35:17,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:35:17,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:35:17,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:35:17,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:35:17,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:35:17,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:35:17,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:35:17,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:35:17,933 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cb4b21-2aca-4d08-9a17-89974bf5a47e/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-18 20:35:17,955 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:35:17,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:35:17,956 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:35:17,956 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:35:17,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:35:17,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:35:17,964 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:35:17,965 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 20:35:17,965 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 20:35:17,965 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 20:35:17,965 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 20:35:17,965 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 20:35:17,966 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 20:35:17,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:35:17,966 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:35:17,966 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:35:17,967 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:35:17,967 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:35:17,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:35:17,967 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 20:35:17,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 20:35:17,968 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 20:35:17,968 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:35:17,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:35:17,968 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 20:35:17,969 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:35:17,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 20:35:17,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:35:17,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:35:17,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:35:17,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:35:17,971 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 20:35:17,971 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_69cb4b21-2aca-4d08-9a17-89974bf5a47e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cb4b21-2aca-4d08-9a17-89974bf5a47e/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af2afe79961dd67a52df68c35bd4350c760cf29ba0bba6313951f2194d2dea76 [2022-11-18 20:35:18,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:35:18,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:35:18,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:35:18,277 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:35:18,278 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:35:18,279 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cb4b21-2aca-4d08-9a17-89974bf5a47e/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/product-lines/minepump_spec2_product54.cil.c [2022-11-18 20:35:18,352 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cb4b21-2aca-4d08-9a17-89974bf5a47e/bin/uautomizer-TMbwUNV5ro/data/0dae53dbb/8b10d0cc24de40a0abcc94ab4fe4044c/FLAG2a3991031 [2022-11-18 20:35:18,913 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:35:18,913 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cb4b21-2aca-4d08-9a17-89974bf5a47e/sv-benchmarks/c/product-lines/minepump_spec2_product54.cil.c [2022-11-18 20:35:18,924 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cb4b21-2aca-4d08-9a17-89974bf5a47e/bin/uautomizer-TMbwUNV5ro/data/0dae53dbb/8b10d0cc24de40a0abcc94ab4fe4044c/FLAG2a3991031 [2022-11-18 20:35:19,212 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cb4b21-2aca-4d08-9a17-89974bf5a47e/bin/uautomizer-TMbwUNV5ro/data/0dae53dbb/8b10d0cc24de40a0abcc94ab4fe4044c [2022-11-18 20:35:19,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:35:19,216 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:35:19,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:35:19,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:35:19,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:35:19,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:35:19" (1/1) ... [2022-11-18 20:35:19,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a3ef2e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:19, skipping insertion in model container [2022-11-18 20:35:19,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:35:19" (1/1) ... [2022-11-18 20:35:19,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:35:19,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:35:19,653 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_69cb4b21-2aca-4d08-9a17-89974bf5a47e/sv-benchmarks/c/product-lines/minepump_spec2_product54.cil.c[19335,19348] [2022-11-18 20:35:19,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:35:19,665 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:35:19,781 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_69cb4b21-2aca-4d08-9a17-89974bf5a47e/sv-benchmarks/c/product-lines/minepump_spec2_product54.cil.c[19335,19348] [2022-11-18 20:35:19,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:35:19,818 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:35:19,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:19 WrapperNode [2022-11-18 20:35:19,818 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:35:19,819 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:35:19,820 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:35:19,820 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:35:19,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:19" (1/1) ... [2022-11-18 20:35:19,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:19" (1/1) ... [2022-11-18 20:35:19,891 INFO L138 Inliner]: procedures = 58, calls = 104, calls flagged for inlining = 57, calls inlined = 139, statements flattened = 964 [2022-11-18 20:35:19,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:35:19,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:35:19,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:35:19,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:35:19,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:19" (1/1) ... [2022-11-18 20:35:19,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:19" (1/1) ... [2022-11-18 20:35:19,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:19" (1/1) ... [2022-11-18 20:35:19,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:19" (1/1) ... [2022-11-18 20:35:19,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:19" (1/1) ... [2022-11-18 20:35:19,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:19" (1/1) ... [2022-11-18 20:35:19,931 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:19" (1/1) ... [2022-11-18 20:35:19,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:19" (1/1) ... [2022-11-18 20:35:19,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:35:19,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:35:19,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:35:19,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:35:19,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:19" (1/1) ... [2022-11-18 20:35:19,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:35:19,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cb4b21-2aca-4d08-9a17-89974bf5a47e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:35:19,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cb4b21-2aca-4d08-9a17-89974bf5a47e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:35:19,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cb4b21-2aca-4d08-9a17-89974bf5a47e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 20:35:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:35:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:35:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:35:20,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:35:20,108 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:35:20,111 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:35:20,968 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:35:20,978 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:35:20,987 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:35:20,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:35:20 BoogieIcfgContainer [2022-11-18 20:35:20,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:35:20,992 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 20:35:20,992 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 20:35:21,005 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 20:35:21,006 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:35:21,006 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:35:19" (1/3) ... [2022-11-18 20:35:21,007 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79f94de0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:35:21, skipping insertion in model container [2022-11-18 20:35:21,007 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:35:21,007 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:19" (2/3) ... [2022-11-18 20:35:21,008 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79f94de0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:35:21, skipping insertion in model container [2022-11-18 20:35:21,008 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:35:21,008 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:35:20" (3/3) ... [2022-11-18 20:35:21,010 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product54.cil.c [2022-11-18 20:35:21,097 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 20:35:21,097 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 20:35:21,098 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 20:35:21,098 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 20:35:21,098 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 20:35:21,098 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 20:35:21,098 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 20:35:21,099 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 20:35:21,110 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 275 states, 274 states have (on average 1.3759124087591241) internal successors, (377), 274 states have internal predecessors, (377), 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 20:35:21,172 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 179 [2022-11-18 20:35:21,175 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:35:21,175 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:35:21,187 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:21,187 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 20:35:21,187 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 20:35:21,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 275 states, 274 states have (on average 1.3759124087591241) internal successors, (377), 274 states have internal predecessors, (377), 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 20:35:21,209 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 179 [2022-11-18 20:35:21,215 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:35:21,216 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:35:21,218 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:21,219 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 20:35:21,226 INFO L748 eck$LassoCheckResult]: Stem: 257#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;~methAndRunningLastTime~0 := 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 168#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 242#L995true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 47#L988true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 182#L1003true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 105#L142true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 248#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 152#L165true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_#t~nondet33#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 18#L575-2true [2022-11-18 20:35:21,227 INFO L750 eck$LassoCheckResult]: Loop: 18#L575-2true assume !false; 225#L576true assume test_~splverifierCounter~0#1 < 4; 197#L577true test_~tmp~5#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 209#L585true assume !(0 != test_~tmp~5#1); 170#L585-2true test_~tmp___0~1#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 276#L595true assume !(0 != test_~tmp___0~1#1); 188#L595-2true test_~tmp___2~0#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 190#L605true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 106#L865true assume { :end_inline_startSystem } true; 219#L613-2true assume { :begin_inline_timeShift } true; 142#L645true assume !(0 != ~pumpRunning~0); 186#L645-2true assume !(0 != ~systemActive~0); 153#L652-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 69#L913-1true __utac_acc__Specification2_spec__2_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret5#1;havoc __utac_acc__Specification2_spec__2_#t~ret5#1; 171#L176true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 30#L176-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 174#L662true assume { :end_inline_timeShift } true; 18#L575-2true [2022-11-18 20:35:21,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:21,240 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-11-18 20:35:21,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:21,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132300235] [2022-11-18 20:35:21,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:21,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:21,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:21,353 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:35:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:21,390 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:35:21,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:21,393 INFO L85 PathProgramCache]: Analyzing trace with hash -831740087, now seen corresponding path program 1 times [2022-11-18 20:35:21,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:21,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108333992] [2022-11-18 20:35:21,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:21,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:21,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:21,478 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 20:35:21,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:21,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108333992] [2022-11-18 20:35:21,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108333992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:21,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:21,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:35:21,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727177126] [2022-11-18 20:35:21,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:21,486 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 20:35:21,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:21,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:35:21,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:35:21,526 INFO L87 Difference]: Start difference. First operand has 275 states, 274 states have (on average 1.3759124087591241) internal successors, (377), 274 states have internal predecessors, (377), 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 20:35:21,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:35:21,571 INFO L93 Difference]: Finished difference Result 272 states and 364 transitions. [2022-11-18 20:35:21,573 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 272 states and 364 transitions. [2022-11-18 20:35:21,577 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 175 [2022-11-18 20:35:21,583 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 272 states to 262 states and 353 transitions. [2022-11-18 20:35:21,584 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 262 [2022-11-18 20:35:21,585 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 262 [2022-11-18 20:35:21,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 262 states and 353 transitions. [2022-11-18 20:35:21,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:21,587 INFO L218 hiAutomatonCegarLoop]: Abstraction has 262 states and 353 transitions. [2022-11-18 20:35:21,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states and 353 transitions. [2022-11-18 20:35:21,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2022-11-18 20:35:21,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 262 states have (on average 1.3473282442748091) internal successors, (353), 261 states have internal predecessors, (353), 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 20:35:21,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 353 transitions. [2022-11-18 20:35:21,644 INFO L240 hiAutomatonCegarLoop]: Abstraction has 262 states and 353 transitions. [2022-11-18 20:35:21,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:35:21,649 INFO L428 stractBuchiCegarLoop]: Abstraction has 262 states and 353 transitions. [2022-11-18 20:35:21,650 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 20:35:21,650 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 262 states and 353 transitions. [2022-11-18 20:35:21,654 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 175 [2022-11-18 20:35:21,654 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:35:21,654 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:35:21,657 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:21,657 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] [2022-11-18 20:35:21,657 INFO L748 eck$LassoCheckResult]: Stem: 816#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;~methAndRunningLastTime~0 := 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 782#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 783#L995 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 640#L988 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 641#L1003 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 723#L142 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 724#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 769#L165 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_#t~nondet33#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 590#L575-2 [2022-11-18 20:35:21,658 INFO L750 eck$LassoCheckResult]: Loop: 590#L575-2 assume !false; 591#L576 assume test_~splverifierCounter~0#1 < 4; 794#L577 test_~tmp~5#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 795#L585 assume !(0 != test_~tmp~5#1); 786#L585-2 test_~tmp___0~1#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 787#L595 assume !(0 != test_~tmp___0~1#1); 791#L595-2 test_~tmp___2~0#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 792#L605 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 642#L613 assume 0 != test_~tmp___1~0#1; 643#L613-2 assume { :begin_inline_timeShift } true; 760#L645 assume !(0 != ~pumpRunning~0); 761#L645-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~8#1;havoc processEnvironment_~tmp~8#1; 781#L729 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret37#1, isMethaneAlarm_~retValue_acc~4#1;havoc isMethaneAlarm_~retValue_acc~4#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 743#L913 isMethaneAlarm_#t~ret37#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~4#1 := isMethaneAlarm_#t~ret37#1;havoc isMethaneAlarm_#t~ret37#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~4#1; 744#L773 processEnvironment_#t~ret36#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~8#1 := processEnvironment_#t~ret36#1;havoc processEnvironment_#t~ret36#1; 718#L733 assume 0 != processEnvironment_~tmp~8#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 719#L763 assume { :end_inline_deactivatePump } true; 655#L729-1 assume { :end_inline_processEnvironment } true; 656#L652-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 674#L913-1 __utac_acc__Specification2_spec__2_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret5#1;havoc __utac_acc__Specification2_spec__2_#t~ret5#1; 675#L176 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 557#L176-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 612#L662 assume { :end_inline_timeShift } true; 590#L575-2 [2022-11-18 20:35:21,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:21,660 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-11-18 20:35:21,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:21,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365115682] [2022-11-18 20:35:21,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:21,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:21,686 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:35:21,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:21,717 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:35:21,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:21,718 INFO L85 PathProgramCache]: Analyzing trace with hash 229486547, now seen corresponding path program 1 times [2022-11-18 20:35:21,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:21,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683955765] [2022-11-18 20:35:21,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:21,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:21,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:21,759 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 20:35:21,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:21,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683955765] [2022-11-18 20:35:21,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683955765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:21,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:21,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:35:21,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418226389] [2022-11-18 20:35:21,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:21,763 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 20:35:21,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:21,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:35:21,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:35:21,764 INFO L87 Difference]: Start difference. First operand 262 states and 353 transitions. cyclomatic complexity: 93 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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) [2022-11-18 20:35:21,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:35:21,901 INFO L93 Difference]: Finished difference Result 276 states and 353 transitions. [2022-11-18 20:35:21,902 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 276 states and 353 transitions. [2022-11-18 20:35:21,904 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 190 [2022-11-18 20:35:21,907 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 276 states to 276 states and 353 transitions. [2022-11-18 20:35:21,913 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 276 [2022-11-18 20:35:21,918 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 276 [2022-11-18 20:35:21,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 276 states and 353 transitions. [2022-11-18 20:35:21,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:21,920 INFO L218 hiAutomatonCegarLoop]: Abstraction has 276 states and 353 transitions. [2022-11-18 20:35:21,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states and 353 transitions. [2022-11-18 20:35:21,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2022-11-18 20:35:21,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 276 states have (on average 1.2789855072463767) internal successors, (353), 275 states have internal predecessors, (353), 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 20:35:21,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 353 transitions. [2022-11-18 20:35:21,932 INFO L240 hiAutomatonCegarLoop]: Abstraction has 276 states and 353 transitions. [2022-11-18 20:35:21,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:35:21,933 INFO L428 stractBuchiCegarLoop]: Abstraction has 276 states and 353 transitions. [2022-11-18 20:35:21,933 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 20:35:21,934 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 276 states and 353 transitions. [2022-11-18 20:35:21,935 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 190 [2022-11-18 20:35:21,936 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:35:21,936 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:35:21,937 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:21,937 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 20:35:21,937 INFO L748 eck$LassoCheckResult]: Stem: 1322#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;~methAndRunningLastTime~0 := 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1288#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1289#L995 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1165#L988 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 1166#L1003 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1233#L142 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1234#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1277#L165 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_#t~nondet33#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1132#L575-2 [2022-11-18 20:35:21,937 INFO L750 eck$LassoCheckResult]: Loop: 1132#L575-2 assume !false; 1133#L576 assume test_~splverifierCounter~0#1 < 4; 1303#L577 test_~tmp~5#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 1304#L585 assume !(0 != test_~tmp~5#1); 1292#L585-2 test_~tmp___0~1#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 1293#L595 assume !(0 != test_~tmp___0~1#1); 1298#L595-2 test_~tmp___2~0#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 1299#L605 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1235#L865 assume { :end_inline_startSystem } true; 1168#L613-2 assume { :begin_inline_timeShift } true; 1265#L645 assume !(0 != ~pumpRunning~0); 1266#L645-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~8#1;havoc processEnvironment_~tmp~8#1; 1287#L729 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret35#1, processEnvironment__wrappee__lowWaterSensor_~tmp~7#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~7#1; 1225#L703-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 1221#L677-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1; 1155#L953-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1; 1156#L958-3 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 1201#L831-9 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1111#L831-11 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 1112#L837-3 processEnvironment__wrappee__highWaterSensor_#t~ret34#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret34#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1; 1119#L681-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1121#L669-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1125#L677-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1198#L703-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1176#L729-1 assume { :end_inline_processEnvironment } true; 1177#L652-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 1196#L913-1 __utac_acc__Specification2_spec__2_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret5#1;havoc __utac_acc__Specification2_spec__2_#t~ret5#1; 1197#L176 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 1101#L176-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1149#L662 assume { :end_inline_timeShift } true; 1132#L575-2 [2022-11-18 20:35:21,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:21,938 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-11-18 20:35:21,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:21,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914924065] [2022-11-18 20:35:21,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:21,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:21,951 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:35:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:21,964 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:35:21,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:21,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1208546091, now seen corresponding path program 1 times [2022-11-18 20:35:21,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:21,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202025627] [2022-11-18 20:35:21,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:21,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:21,981 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:35:21,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:21,992 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:35:21,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:21,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1120563710, now seen corresponding path program 1 times [2022-11-18 20:35:21,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:21,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133051296] [2022-11-18 20:35:21,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:21,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:22,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:22,029 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:35:22,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:22,060 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:35:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:23,492 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:35:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:23,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 08:35:23 BoogieIcfgContainer [2022-11-18 20:35:23,583 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 20:35:23,584 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:35:23,584 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:35:23,584 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:35:23,585 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:35:20" (3/4) ... [2022-11-18 20:35:23,587 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-18 20:35:23,663 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cb4b21-2aca-4d08-9a17-89974bf5a47e/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:35:23,663 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:35:23,664 INFO L158 Benchmark]: Toolchain (without parser) took 4448.24ms. Allocated memory was 125.8MB in the beginning and 155.2MB in the end (delta: 29.4MB). Free memory was 82.6MB in the beginning and 105.9MB in the end (delta: -23.3MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2022-11-18 20:35:23,664 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory was 99.9MB in the beginning and 99.8MB in the end (delta: 69.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:35:23,665 INFO L158 Benchmark]: CACSL2BoogieTranslator took 601.34ms. Allocated memory is still 125.8MB. Free memory was 82.4MB in the beginning and 90.4MB in the end (delta: -7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:35:23,666 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.01ms. Allocated memory is still 125.8MB. Free memory was 90.4MB in the beginning and 85.8MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:35:23,666 INFO L158 Benchmark]: Boogie Preprocessor took 47.37ms. Allocated memory is still 125.8MB. Free memory was 85.8MB in the beginning and 82.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:35:23,666 INFO L158 Benchmark]: RCFGBuilder took 1051.25ms. Allocated memory was 125.8MB in the beginning and 155.2MB in the end (delta: 29.4MB). Free memory was 82.7MB in the beginning and 126.6MB in the end (delta: -43.9MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. [2022-11-18 20:35:23,667 INFO L158 Benchmark]: BuchiAutomizer took 2591.21ms. Allocated memory is still 155.2MB. Free memory was 125.8MB in the beginning and 109.0MB in the end (delta: 16.7MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2022-11-18 20:35:23,667 INFO L158 Benchmark]: Witness Printer took 79.48ms. Allocated memory is still 155.2MB. Free memory was 109.0MB in the beginning and 105.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:35:23,669 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory was 99.9MB in the beginning and 99.8MB in the end (delta: 69.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 601.34ms. Allocated memory is still 125.8MB. Free memory was 82.4MB in the beginning and 90.4MB in the end (delta: -7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.01ms. Allocated memory is still 125.8MB. Free memory was 90.4MB in the beginning and 85.8MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.37ms. Allocated memory is still 125.8MB. Free memory was 85.8MB in the beginning and 82.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1051.25ms. Allocated memory was 125.8MB in the beginning and 155.2MB in the end (delta: 29.4MB). Free memory was 82.7MB in the beginning and 126.6MB in the end (delta: -43.9MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 2591.21ms. Allocated memory is still 155.2MB. Free memory was 125.8MB in the beginning and 109.0MB in the end (delta: 16.7MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * Witness Printer took 79.48ms. Allocated memory is still 155.2MB. Free memory was 109.0MB in the beginning and 105.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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 3 locations. The remainder module has 276 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.0s. 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 0.1s 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, 543 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 543 mSDsluCounter, 771 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 123 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 648 mSDtfsCounter, 45 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 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: 575]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L367] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L159] int methAndRunningLastTime ; [L871] int methaneLevelCritical = 0; [L638] int pumpRunning = 0; [L870] int waterLevel = 1; [L639] int systemActive = 1; [L50] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L133] int retValue_acc ; [L134] int tmp ; [L138] FCALL select_helpers() [L139] FCALL select_features() [L140] CALL, EXPR valid_product() [L999] int retValue_acc ; [L1002] retValue_acc = 1 [L1003] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L140] RET, EXPR valid_product() [L140] tmp = valid_product() [L142] COND TRUE \read(tmp) [L144] FCALL setup() [L145] CALL runTest() [L123] CALL __utac_acc__Specification2_spec__1() [L164] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] RET __utac_acc__Specification2_spec__1() [L124] CALL test() [L566] int splverifierCounter ; [L567] int tmp ; [L568] int tmp___0 ; [L569] int tmp___1 ; [L570] int tmp___2 ; [L573] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L575] COND TRUE 1 [L577] COND TRUE splverifierCounter < 4 [L583] tmp = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp)) [L593] tmp___0 = __VERIFIER_nondet_int() [L595] COND FALSE !(\read(tmp___0)) [L603] tmp___2 = __VERIFIER_nondet_int() [L605] COND TRUE \read(tmp___2) [L607] CALL startSystem() [L864] systemActive = 1 [L607] RET startSystem() [L620] CALL timeShift() [L645] COND FALSE !(\read(pumpRunning)) [L652] COND TRUE \read(systemActive) [L654] CALL processEnvironment() [L726] int tmp ; [L729] COND FALSE !(\read(pumpRunning)) [L744] CALL processEnvironment__wrappee__lowWaterSensor() [L700] int tmp ; [L703] COND FALSE !(\read(pumpRunning)) [L718] CALL processEnvironment__wrappee__highWaterSensor() [L674] int tmp ; [L677] COND TRUE ! pumpRunning [L679] CALL, EXPR isHighWaterLevel() [L823] int retValue_acc ; [L824] int tmp ; [L825] int tmp___0 ; [L829] CALL, EXPR isHighWaterSensorDry() [L950] int retValue_acc ; [L953] COND TRUE waterLevel < 2 [L954] retValue_acc = 1 [L955] return (retValue_acc); [L829] RET, EXPR isHighWaterSensorDry() [L829] tmp = isHighWaterSensorDry() [L831] COND TRUE \read(tmp) [L832] tmp___0 = 0 [L836] retValue_acc = tmp___0 [L837] return (retValue_acc); [L679] RET, EXPR isHighWaterLevel() [L679] tmp = isHighWaterLevel() [L681] COND FALSE !(\read(tmp)) [L687] FCALL processEnvironment__wrappee__base() [L718] RET processEnvironment__wrappee__highWaterSensor() [L744] RET processEnvironment__wrappee__lowWaterSensor() [L654] RET processEnvironment() [L660] CALL __utac_acc__Specification2_spec__2() [L169] int tmp ; [L170] int tmp___0 ; [L174] CALL, EXPR isMethaneLevelCritical() [L909] int retValue_acc ; [L912] retValue_acc = methaneLevelCritical [L913] return (retValue_acc); [L174] RET, EXPR isMethaneLevelCritical() [L174] tmp = isMethaneLevelCritical() [L176] COND FALSE !(\read(tmp)) [L192] methAndRunningLastTime = 0 [L660] RET __utac_acc__Specification2_spec__2() [L620] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 575]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L367] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L159] int methAndRunningLastTime ; [L871] int methaneLevelCritical = 0; [L638] int pumpRunning = 0; [L870] int waterLevel = 1; [L639] int systemActive = 1; [L50] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L133] int retValue_acc ; [L134] int tmp ; [L138] FCALL select_helpers() [L139] FCALL select_features() [L140] CALL, EXPR valid_product() [L999] int retValue_acc ; [L1002] retValue_acc = 1 [L1003] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L140] RET, EXPR valid_product() [L140] tmp = valid_product() [L142] COND TRUE \read(tmp) [L144] FCALL setup() [L145] CALL runTest() [L123] CALL __utac_acc__Specification2_spec__1() [L164] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] RET __utac_acc__Specification2_spec__1() [L124] CALL test() [L566] int splverifierCounter ; [L567] int tmp ; [L568] int tmp___0 ; [L569] int tmp___1 ; [L570] int tmp___2 ; [L573] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L575] COND TRUE 1 [L577] COND TRUE splverifierCounter < 4 [L583] tmp = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp)) [L593] tmp___0 = __VERIFIER_nondet_int() [L595] COND FALSE !(\read(tmp___0)) [L603] tmp___2 = __VERIFIER_nondet_int() [L605] COND TRUE \read(tmp___2) [L607] CALL startSystem() [L864] systemActive = 1 [L607] RET startSystem() [L620] CALL timeShift() [L645] COND FALSE !(\read(pumpRunning)) [L652] COND TRUE \read(systemActive) [L654] CALL processEnvironment() [L726] int tmp ; [L729] COND FALSE !(\read(pumpRunning)) [L744] CALL processEnvironment__wrappee__lowWaterSensor() [L700] int tmp ; [L703] COND FALSE !(\read(pumpRunning)) [L718] CALL processEnvironment__wrappee__highWaterSensor() [L674] int tmp ; [L677] COND TRUE ! pumpRunning [L679] CALL, EXPR isHighWaterLevel() [L823] int retValue_acc ; [L824] int tmp ; [L825] int tmp___0 ; [L829] CALL, EXPR isHighWaterSensorDry() [L950] int retValue_acc ; [L953] COND TRUE waterLevel < 2 [L954] retValue_acc = 1 [L955] return (retValue_acc); [L829] RET, EXPR isHighWaterSensorDry() [L829] tmp = isHighWaterSensorDry() [L831] COND TRUE \read(tmp) [L832] tmp___0 = 0 [L836] retValue_acc = tmp___0 [L837] return (retValue_acc); [L679] RET, EXPR isHighWaterLevel() [L679] tmp = isHighWaterLevel() [L681] COND FALSE !(\read(tmp)) [L687] FCALL processEnvironment__wrappee__base() [L718] RET processEnvironment__wrappee__highWaterSensor() [L744] RET processEnvironment__wrappee__lowWaterSensor() [L654] RET processEnvironment() [L660] CALL __utac_acc__Specification2_spec__2() [L169] int tmp ; [L170] int tmp___0 ; [L174] CALL, EXPR isMethaneLevelCritical() [L909] int retValue_acc ; [L912] retValue_acc = methaneLevelCritical [L913] return (retValue_acc); [L174] RET, EXPR isMethaneLevelCritical() [L174] tmp = isMethaneLevelCritical() [L176] COND FALSE !(\read(tmp)) [L192] methAndRunningLastTime = 0 [L660] RET __utac_acc__Specification2_spec__2() [L620] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-18 20:35:23,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cb4b21-2aca-4d08-9a17-89974bf5a47e/bin/uautomizer-TMbwUNV5ro/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)