./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product11.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26fceb4-2e52-424b-a7d7-3954dc4fe146/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26fceb4-2e52-424b-a7d7-3954dc4fe146/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_e26fceb4-2e52-424b-a7d7-3954dc4fe146/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26fceb4-2e52-424b-a7d7-3954dc4fe146/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product11.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26fceb4-2e52-424b-a7d7-3954dc4fe146/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_e26fceb4-2e52-424b-a7d7-3954dc4fe146/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 a02362aeafc2e43a1be9ec43f97ab5a222e55f9c6ade6d7cf376000405834eaa --- 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 20:56:44,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:56:44,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:56:44,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:56:44,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:56:44,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:56:44,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:56:44,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:56:44,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:56:44,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:56:44,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:56:44,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:56:44,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:56:44,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:56:44,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:56:44,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:56:44,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:56:44,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:56:44,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:56:44,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:56:44,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:56:45,001 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:56:45,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:56:45,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:56:45,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:56:45,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:56:45,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:56:45,011 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:56:45,012 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:56:45,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:56:45,014 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:56:45,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:56:45,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:56:45,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:56:45,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:56:45,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:56:45,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:56:45,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:56:45,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:56:45,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:56:45,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:56:45,026 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26fceb4-2e52-424b-a7d7-3954dc4fe146/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-18 20:56:45,054 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:56:45,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:56:45,055 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:56:45,055 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:56:45,056 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:56:45,057 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:56:45,057 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:56:45,058 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 20:56:45,058 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 20:56:45,058 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 20:56:45,059 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 20:56:45,059 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 20:56:45,059 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 20:56:45,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:56:45,060 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:56:45,060 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:56:45,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:56:45,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:56:45,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:56:45,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 20:56:45,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 20:56:45,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 20:56:45,063 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:56:45,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:56:45,063 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 20:56:45,064 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:56:45,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 20:56:45,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:56:45,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:56:45,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:56:45,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:56:45,067 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 20:56:45,067 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_e26fceb4-2e52-424b-a7d7-3954dc4fe146/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26fceb4-2e52-424b-a7d7-3954dc4fe146/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a02362aeafc2e43a1be9ec43f97ab5a222e55f9c6ade6d7cf376000405834eaa [2022-11-18 20:56:45,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:56:45,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:56:45,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:56:45,443 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:56:45,444 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:56:45,445 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26fceb4-2e52-424b-a7d7-3954dc4fe146/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/product-lines/minepump_spec5_product11.cil.c [2022-11-18 20:56:45,515 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26fceb4-2e52-424b-a7d7-3954dc4fe146/bin/uautomizer-TMbwUNV5ro/data/8faa0d3d1/15945e143035412ebcbd0505f8823950/FLAGa62c9d3a1 [2022-11-18 20:56:46,129 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:56:46,130 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26fceb4-2e52-424b-a7d7-3954dc4fe146/sv-benchmarks/c/product-lines/minepump_spec5_product11.cil.c [2022-11-18 20:56:46,145 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26fceb4-2e52-424b-a7d7-3954dc4fe146/bin/uautomizer-TMbwUNV5ro/data/8faa0d3d1/15945e143035412ebcbd0505f8823950/FLAGa62c9d3a1 [2022-11-18 20:56:46,420 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26fceb4-2e52-424b-a7d7-3954dc4fe146/bin/uautomizer-TMbwUNV5ro/data/8faa0d3d1/15945e143035412ebcbd0505f8823950 [2022-11-18 20:56:46,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:56:46,427 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:56:46,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:56:46,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:56:46,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:56:46,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:56:46" (1/1) ... [2022-11-18 20:56:46,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a1b75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:46, skipping insertion in model container [2022-11-18 20:56:46,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:56:46" (1/1) ... [2022-11-18 20:56:46,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:56:46,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:56:46,806 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_e26fceb4-2e52-424b-a7d7-3954dc4fe146/sv-benchmarks/c/product-lines/minepump_spec5_product11.cil.c[2807,2820] [2022-11-18 20:56:46,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:56:46,934 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:56:46,953 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_e26fceb4-2e52-424b-a7d7-3954dc4fe146/sv-benchmarks/c/product-lines/minepump_spec5_product11.cil.c[2807,2820] [2022-11-18 20:56:47,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:56:47,046 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:56:47,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:47 WrapperNode [2022-11-18 20:56:47,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:56:47,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:56:47,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:56:47,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:56:47,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:47" (1/1) ... [2022-11-18 20:56:47,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:47" (1/1) ... [2022-11-18 20:56:47,102 INFO L138 Inliner]: procedures = 53, calls = 95, calls flagged for inlining = 48, calls inlined = 41, statements flattened = 269 [2022-11-18 20:56:47,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:56:47,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:56:47,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:56:47,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:56:47,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:47" (1/1) ... [2022-11-18 20:56:47,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:47" (1/1) ... [2022-11-18 20:56:47,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:47" (1/1) ... [2022-11-18 20:56:47,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:47" (1/1) ... [2022-11-18 20:56:47,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:47" (1/1) ... [2022-11-18 20:56:47,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:47" (1/1) ... [2022-11-18 20:56:47,132 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:47" (1/1) ... [2022-11-18 20:56:47,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:47" (1/1) ... [2022-11-18 20:56:47,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:56:47,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:56:47,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:56:47,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:56:47,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:47" (1/1) ... [2022-11-18 20:56:47,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:56:47,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26fceb4-2e52-424b-a7d7-3954dc4fe146/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:56:47,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26fceb4-2e52-424b-a7d7-3954dc4fe146/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:56:47,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26fceb4-2e52-424b-a7d7-3954dc4fe146/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 20:56:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:56:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:56:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:56:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:56:47,370 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:56:47,372 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:56:47,806 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:56:47,814 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:56:47,814 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:56:47,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:56:47 BoogieIcfgContainer [2022-11-18 20:56:47,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:56:47,818 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 20:56:47,818 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 20:56:47,838 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 20:56:47,839 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:56:47,840 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:56:46" (1/3) ... [2022-11-18 20:56:47,841 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b7d10e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:56:47, skipping insertion in model container [2022-11-18 20:56:47,841 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:56:47,841 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:47" (2/3) ... [2022-11-18 20:56:47,841 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b7d10e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:56:47, skipping insertion in model container [2022-11-18 20:56:47,842 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:56:47,842 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:56:47" (3/3) ... [2022-11-18 20:56:47,843 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product11.cil.c [2022-11-18 20:56:47,910 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 20:56:47,910 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 20:56:47,910 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 20:56:47,911 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 20:56:47,911 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 20:56:47,911 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 20:56:47,911 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 20:56:47,911 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 20:56:47,919 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 89 states, 88 states have (on average 1.3636363636363635) internal successors, (120), 88 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:47,956 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2022-11-18 20:56:47,957 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:56:47,957 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:56:47,966 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:47,967 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:47,967 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 20:56:47,969 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 89 states, 88 states have (on average 1.3636363636363635) internal successors, (120), 88 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:47,975 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2022-11-18 20:56:47,975 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:56:47,975 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:56:47,977 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:47,978 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:47,982 INFO L748 eck$LassoCheckResult]: Stem: 72#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;~switchedOnBeforeTS~0 := 0; 52#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 45#L271true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 78#L264true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 75#L279true main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 58#L235true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 47#L206true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 21#L872true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 25#L443-2true [2022-11-18 20:56:47,984 INFO L750 eck$LassoCheckResult]: Loop: 25#L443-2true assume !false; 42#L444true assume test_~splverifierCounter~0#1 < 4; 50#L445true test_~tmp~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 56#L453true assume !(0 != test_~tmp~2#1); 17#L453-2true test_~tmp___0~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 54#L463true assume !(0 != test_~tmp___0~0#1); 70#L463-2true test_~tmp___2~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 76#L473true assume 0 != test_~tmp___2~0#1; 44#L479-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 80#L377true __utac_acc__Specification5_spec__2_#t~ret48#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret48#1;havoc __utac_acc__Specification5_spec__2_#t~ret48#1; 51#L882true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 87#L300true assume !(0 != ~pumpRunning~0); 49#L300-2true assume !(0 != ~systemActive~0); 37#L307-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 57#L131true __utac_acc__Specification5_spec__3_#t~ret49#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret49#1;havoc __utac_acc__Specification5_spec__3_#t~ret49#1; 19#L893true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 82#L893-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 8#L317true assume { :end_inline_timeShift } true; 25#L443-2true [2022-11-18 20:56:47,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:47,991 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-11-18 20:56:48,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:48,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776330509] [2022-11-18 20:56:48,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:48,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:56:48,101 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:56:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:56:48,140 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:56:48,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:48,144 INFO L85 PathProgramCache]: Analyzing trace with hash -2013527700, now seen corresponding path program 1 times [2022-11-18 20:56:48,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:48,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763900982] [2022-11-18 20:56:48,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:48,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:56:48,157 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:56:48,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:56:48,169 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:56:48,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:48,171 INFO L85 PathProgramCache]: Analyzing trace with hash 942087189, now seen corresponding path program 1 times [2022-11-18 20:56:48,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:48,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558408059] [2022-11-18 20:56:48,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:48,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:48,537 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 20:56:48,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:48,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558408059] [2022-11-18 20:56:48,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558408059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:48,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:48,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:56:48,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725461681] [2022-11-18 20:56:48,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:48,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:48,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:56:48,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:56:48,825 INFO L87 Difference]: Start difference. First operand has 89 states, 88 states have (on average 1.3636363636363635) internal successors, (120), 88 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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 20:56:48,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:56:48,947 INFO L93 Difference]: Finished difference Result 237 states and 300 transitions. [2022-11-18 20:56:48,949 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 237 states and 300 transitions. [2022-11-18 20:56:48,955 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 149 [2022-11-18 20:56:48,961 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 237 states to 207 states and 270 transitions. [2022-11-18 20:56:48,962 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 207 [2022-11-18 20:56:48,963 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 207 [2022-11-18 20:56:48,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 207 states and 270 transitions. [2022-11-18 20:56:48,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:48,966 INFO L218 hiAutomatonCegarLoop]: Abstraction has 207 states and 270 transitions. [2022-11-18 20:56:48,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states and 270 transitions. [2022-11-18 20:56:49,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 137. [2022-11-18 20:56:49,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 137 states have (on average 1.3065693430656935) internal successors, (179), 136 states have internal predecessors, (179), 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 20:56:49,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 179 transitions. [2022-11-18 20:56:49,005 INFO L240 hiAutomatonCegarLoop]: Abstraction has 137 states and 179 transitions. [2022-11-18 20:56:49,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:56:49,010 INFO L428 stractBuchiCegarLoop]: Abstraction has 137 states and 179 transitions. [2022-11-18 20:56:49,011 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 20:56:49,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states and 179 transitions. [2022-11-18 20:56:49,013 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 98 [2022-11-18 20:56:49,014 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:56:49,014 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:56:49,014 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:49,015 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] [2022-11-18 20:56:49,015 INFO L748 eck$LassoCheckResult]: Stem: 417#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;~switchedOnBeforeTS~0 := 0; 410#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 402#L271 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 403#L264 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 418#L279 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 412#L235 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 404#L206 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 378#L872 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 355#L443-2 [2022-11-18 20:56:49,015 INFO L750 eck$LassoCheckResult]: Loop: 355#L443-2 assume !false; 382#L444 assume test_~splverifierCounter~0#1 < 4; 399#L445 test_~tmp~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 407#L453 assume !(0 != test_~tmp~2#1); 371#L453-2 test_~tmp___0~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 372#L463 assume !(0 != test_~tmp___0~0#1); 411#L463-2 test_~tmp___2~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 416#L473 assume 0 != test_~tmp___2~0#1; 400#L479-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 401#L377 __utac_acc__Specification5_spec__2_#t~ret48#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret48#1;havoc __utac_acc__Specification5_spec__2_#t~ret48#1; 408#L882 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 409#L300 assume !(0 != ~pumpRunning~0); 396#L300-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 383#L324 assume { :end_inline_processEnvironment } true; 384#L307-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 392#L131 __utac_acc__Specification5_spec__3_#t~ret49#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret49#1;havoc __utac_acc__Specification5_spec__3_#t~ret49#1; 374#L893 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 361#L893-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 354#L317 assume { :end_inline_timeShift } true; 355#L443-2 [2022-11-18 20:56:49,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:49,016 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-11-18 20:56:49,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:49,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542084517] [2022-11-18 20:56:49,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:49,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:49,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:56:49,028 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:56:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:56:49,039 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:56:49,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:49,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1661915626, now seen corresponding path program 1 times [2022-11-18 20:56:49,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:49,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622072361] [2022-11-18 20:56:49,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:49,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:56:49,049 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:56:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:56:49,056 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:56:49,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:49,057 INFO L85 PathProgramCache]: Analyzing trace with hash -232167283, now seen corresponding path program 1 times [2022-11-18 20:56:49,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:49,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861511183] [2022-11-18 20:56:49,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:49,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:49,205 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 20:56:49,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:49,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861511183] [2022-11-18 20:56:49,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861511183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:49,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:49,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:56:49,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756129262] [2022-11-18 20:56:49,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:49,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:49,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:56:49,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:56:49,398 INFO L87 Difference]: Start difference. First operand 137 states and 179 transitions. cyclomatic complexity: 45 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 20:56:49,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:56:49,593 INFO L93 Difference]: Finished difference Result 353 states and 459 transitions. [2022-11-18 20:56:49,593 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 353 states and 459 transitions. [2022-11-18 20:56:49,602 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 238 [2022-11-18 20:56:49,610 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 353 states to 353 states and 459 transitions. [2022-11-18 20:56:49,610 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 353 [2022-11-18 20:56:49,613 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 353 [2022-11-18 20:56:49,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 353 states and 459 transitions. [2022-11-18 20:56:49,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:49,620 INFO L218 hiAutomatonCegarLoop]: Abstraction has 353 states and 459 transitions. [2022-11-18 20:56:49,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states and 459 transitions. [2022-11-18 20:56:49,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 264. [2022-11-18 20:56:49,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 264 states have (on average 1.2878787878787878) internal successors, (340), 263 states have internal predecessors, (340), 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 20:56:49,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 340 transitions. [2022-11-18 20:56:49,650 INFO L240 hiAutomatonCegarLoop]: Abstraction has 264 states and 340 transitions. [2022-11-18 20:56:49,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:56:49,656 INFO L428 stractBuchiCegarLoop]: Abstraction has 264 states and 340 transitions. [2022-11-18 20:56:49,657 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 20:56:49,657 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 264 states and 340 transitions. [2022-11-18 20:56:49,664 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 194 [2022-11-18 20:56:49,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:56:49,665 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:56:49,667 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:49,667 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] [2022-11-18 20:56:49,668 INFO L748 eck$LassoCheckResult]: Stem: 940#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;~switchedOnBeforeTS~0 := 0; 925#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 915#L271 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 916#L264 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 943#L279 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 928#L235 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 917#L206 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 887#L872 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 861#L443-2 [2022-11-18 20:56:49,668 INFO L750 eck$LassoCheckResult]: Loop: 861#L443-2 assume !false; 892#L444 assume test_~splverifierCounter~0#1 < 4; 912#L445 test_~tmp~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 920#L453 assume !(0 != test_~tmp~2#1); 877#L453-2 test_~tmp___0~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 878#L463 assume !(0 != test_~tmp___0~0#1); 923#L463-2 test_~tmp___2~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 938#L473 assume 0 != test_~tmp___2~0#1; 913#L479-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 914#L377 __utac_acc__Specification5_spec__2_#t~ret48#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret48#1;havoc __utac_acc__Specification5_spec__2_#t~ret48#1; 921#L882 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 922#L300 assume !(0 != ~pumpRunning~0); 908#L300-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 890#L324 assume { :end_inline_processEnvironment } true; 891#L307-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 1021#L131 __utac_acc__Specification5_spec__3_#t~ret49#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret49#1;havoc __utac_acc__Specification5_spec__3_#t~ret49#1; 1020#L893 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 1019#L377-1 __utac_acc__Specification5_spec__3_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~1#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 1018#L897 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1#1); 1016#L893-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 860#L317 assume { :end_inline_timeShift } true; 861#L443-2 [2022-11-18 20:56:49,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:49,670 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-11-18 20:56:49,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:49,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999244859] [2022-11-18 20:56:49,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:49,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:56:49,683 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:56:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:56:49,703 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:56:49,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:49,704 INFO L85 PathProgramCache]: Analyzing trace with hash 607818289, now seen corresponding path program 1 times [2022-11-18 20:56:49,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:49,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167691565] [2022-11-18 20:56:49,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:49,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:56:49,710 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:56:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:56:49,717 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:56:49,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:49,718 INFO L85 PathProgramCache]: Analyzing trace with hash 206441192, now seen corresponding path program 1 times [2022-11-18 20:56:49,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:49,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640135227] [2022-11-18 20:56:49,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:49,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:49,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:56:49,730 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:56:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:56:49,743 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:56:51,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:56:51,045 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:56:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:56:51,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 08:56:51 BoogieIcfgContainer [2022-11-18 20:56:51,127 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 20:56:51,128 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:56:51,129 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:56:51,129 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:56:51,130 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:56:47" (3/4) ... [2022-11-18 20:56:51,132 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-18 20:56:51,210 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26fceb4-2e52-424b-a7d7-3954dc4fe146/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:56:51,210 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:56:51,211 INFO L158 Benchmark]: Toolchain (without parser) took 4784.49ms. Allocated memory was 92.3MB in the beginning and 148.9MB in the end (delta: 56.6MB). Free memory was 61.4MB in the beginning and 112.3MB in the end (delta: -50.9MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2022-11-18 20:56:51,212 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 92.3MB. Free memory is still 46.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:56:51,218 INFO L158 Benchmark]: CACSL2BoogieTranslator took 615.20ms. Allocated memory is still 92.3MB. Free memory was 61.2MB in the beginning and 61.0MB in the end (delta: 168.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:56:51,218 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.14ms. Allocated memory is still 92.3MB. Free memory was 61.0MB in the beginning and 58.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:56:51,219 INFO L158 Benchmark]: Boogie Preprocessor took 31.62ms. Allocated memory is still 92.3MB. Free memory was 58.6MB in the beginning and 56.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:56:51,220 INFO L158 Benchmark]: RCFGBuilder took 679.11ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 56.8MB in the beginning and 93.4MB in the end (delta: -36.5MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2022-11-18 20:56:51,220 INFO L158 Benchmark]: BuchiAutomizer took 3309.95ms. Allocated memory was 119.5MB in the beginning and 148.9MB in the end (delta: 29.4MB). Free memory was 93.4MB in the beginning and 114.4MB in the end (delta: -21.0MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2022-11-18 20:56:51,220 INFO L158 Benchmark]: Witness Printer took 82.27ms. Allocated memory is still 148.9MB. Free memory was 114.4MB in the beginning and 112.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:56:51,223 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 92.3MB. Free memory is still 46.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 615.20ms. Allocated memory is still 92.3MB. Free memory was 61.2MB in the beginning and 61.0MB in the end (delta: 168.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.14ms. Allocated memory is still 92.3MB. Free memory was 61.0MB in the beginning and 58.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.62ms. Allocated memory is still 92.3MB. Free memory was 58.6MB in the beginning and 56.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 679.11ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 56.8MB in the beginning and 93.4MB in the end (delta: -36.5MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 3309.95ms. Allocated memory was 119.5MB in the beginning and 148.9MB in the end (delta: 29.4MB). Free memory was 93.4MB in the beginning and 114.4MB in the end (delta: -21.0MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Witness Printer took 82.27ms. Allocated memory is still 148.9MB. Free memory was 114.4MB in the beginning and 112.3MB in the end (delta: 2.1MB). 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 6 locations. The remainder module has 264 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 159 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 675 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 675 mSDsluCounter, 1165 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 933 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 107 IncrementalHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 232 mSDtfsCounter, 107 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 443]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L669] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L57] int methaneLevelCritical = 0; [L288] int pumpRunning = 0; [L56] int waterLevel = 1; [L289] int systemActive = 1; [L145] int cleanupTimeShifts = 4; [L866] int switchedOnBeforeTS ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L226] int retValue_acc ; [L227] int tmp ; [L231] FCALL select_helpers() [L232] FCALL select_features() [L233] CALL, EXPR valid_product() [L275] int retValue_acc ; [L278] retValue_acc = 1 [L279] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L233] RET, EXPR valid_product() [L233] tmp = valid_product() [L235] COND TRUE \read(tmp) [L237] FCALL setup() [L238] CALL runTest() [L216] CALL __utac_acc__Specification5_spec__1() [L871] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L216] RET __utac_acc__Specification5_spec__1() [L217] CALL test() [L434] int splverifierCounter ; [L435] int tmp ; [L436] int tmp___0 ; [L437] int tmp___1 ; [L438] int tmp___2 ; [L441] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L443] COND TRUE 1 [L445] COND TRUE splverifierCounter < 4 [L451] tmp = __VERIFIER_nondet_int() [L453] COND FALSE !(\read(tmp)) [L461] tmp___0 = __VERIFIER_nondet_int() [L463] COND FALSE !(\read(tmp___0)) [L471] tmp___2 = __VERIFIER_nondet_int() [L473] COND TRUE \read(tmp___2) [L488] CALL timeShift() [L298] CALL __utac_acc__Specification5_spec__2() [L880] CALL, EXPR isPumpRunning() [L373] int retValue_acc ; [L376] retValue_acc = pumpRunning [L377] return (retValue_acc); [L880] RET, EXPR isPumpRunning() [L880] switchedOnBeforeTS = isPumpRunning() [L298] RET __utac_acc__Specification5_spec__2() [L300] COND FALSE !(\read(pumpRunning)) [L307] COND TRUE \read(systemActive) [L309] FCALL processEnvironment() [L315] CALL __utac_acc__Specification5_spec__3() [L886] int tmp ; [L887] int tmp___0 ; [L891] CALL, EXPR getWaterLevel() [L127] int retValue_acc ; [L130] retValue_acc = waterLevel [L131] return (retValue_acc); [L891] RET, EXPR getWaterLevel() [L891] tmp = getWaterLevel() [L893] COND TRUE tmp != 2 [L895] CALL, EXPR isPumpRunning() [L373] int retValue_acc ; [L376] retValue_acc = pumpRunning [L377] return (retValue_acc); [L895] RET, EXPR isPumpRunning() [L895] tmp___0 = isPumpRunning() [L897] COND FALSE !(\read(tmp___0)) [L315] RET __utac_acc__Specification5_spec__3() [L488] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 443]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L669] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L57] int methaneLevelCritical = 0; [L288] int pumpRunning = 0; [L56] int waterLevel = 1; [L289] int systemActive = 1; [L145] int cleanupTimeShifts = 4; [L866] int switchedOnBeforeTS ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L226] int retValue_acc ; [L227] int tmp ; [L231] FCALL select_helpers() [L232] FCALL select_features() [L233] CALL, EXPR valid_product() [L275] int retValue_acc ; [L278] retValue_acc = 1 [L279] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L233] RET, EXPR valid_product() [L233] tmp = valid_product() [L235] COND TRUE \read(tmp) [L237] FCALL setup() [L238] CALL runTest() [L216] CALL __utac_acc__Specification5_spec__1() [L871] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L216] RET __utac_acc__Specification5_spec__1() [L217] CALL test() [L434] int splverifierCounter ; [L435] int tmp ; [L436] int tmp___0 ; [L437] int tmp___1 ; [L438] int tmp___2 ; [L441] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L443] COND TRUE 1 [L445] COND TRUE splverifierCounter < 4 [L451] tmp = __VERIFIER_nondet_int() [L453] COND FALSE !(\read(tmp)) [L461] tmp___0 = __VERIFIER_nondet_int() [L463] COND FALSE !(\read(tmp___0)) [L471] tmp___2 = __VERIFIER_nondet_int() [L473] COND TRUE \read(tmp___2) [L488] CALL timeShift() [L298] CALL __utac_acc__Specification5_spec__2() [L880] CALL, EXPR isPumpRunning() [L373] int retValue_acc ; [L376] retValue_acc = pumpRunning [L377] return (retValue_acc); [L880] RET, EXPR isPumpRunning() [L880] switchedOnBeforeTS = isPumpRunning() [L298] RET __utac_acc__Specification5_spec__2() [L300] COND FALSE !(\read(pumpRunning)) [L307] COND TRUE \read(systemActive) [L309] FCALL processEnvironment() [L315] CALL __utac_acc__Specification5_spec__3() [L886] int tmp ; [L887] int tmp___0 ; [L891] CALL, EXPR getWaterLevel() [L127] int retValue_acc ; [L130] retValue_acc = waterLevel [L131] return (retValue_acc); [L891] RET, EXPR getWaterLevel() [L891] tmp = getWaterLevel() [L893] COND TRUE tmp != 2 [L895] CALL, EXPR isPumpRunning() [L373] int retValue_acc ; [L376] retValue_acc = pumpRunning [L377] return (retValue_acc); [L895] RET, EXPR isPumpRunning() [L895] tmp___0 = isPumpRunning() [L897] COND FALSE !(\read(tmp___0)) [L315] RET __utac_acc__Specification5_spec__3() [L488] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-18 20:56:51,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26fceb4-2e52-424b-a7d7-3954dc4fe146/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)