./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product05.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37847a63-ac36-4a29-9fbd-46311c3b07f0/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37847a63-ac36-4a29-9fbd-46311c3b07f0/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37847a63-ac36-4a29-9fbd-46311c3b07f0/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37847a63-ac36-4a29-9fbd-46311c3b07f0/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product05.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37847a63-ac36-4a29-9fbd-46311c3b07f0/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37847a63-ac36-4a29-9fbd-46311c3b07f0/bin/uautomizer-j4sWxH34Be --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 c6ca8c561d44a725c9e83a72546b64d4a8d527f7d8e8f11c5a3011fde526bfd5 ....................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:15:18,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:15:18,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:15:18,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:15:18,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:15:18,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:15:18,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:15:18,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:15:18,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:15:18,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:15:18,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:15:18,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:15:18,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:15:18,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:15:18,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:15:18,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:15:18,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:15:18,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:15:18,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:15:18,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:15:18,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:15:18,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:15:18,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:15:18,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:15:18,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:15:18,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:15:18,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:15:18,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:15:18,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:15:18,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:15:18,878 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:15:18,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:15:18,880 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:15:18,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:15:18,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:15:18,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:15:18,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:15:18,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:15:18,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:15:18,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:15:18,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:15:18,887 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37847a63-ac36-4a29-9fbd-46311c3b07f0/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:15:18,917 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:15:18,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:15:18,918 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:15:18,918 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:15:18,919 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:15:18,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:15:18,920 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:15:18,920 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:15:18,921 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:15:18,921 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:15:18,921 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:15:18,922 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:15:18,922 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:15:18,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:15:18,922 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:15:18,923 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:15:18,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:15:18,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:15:18,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:15:18,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:15:18,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:15:18,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:15:18,924 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:15:18,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:15:18,925 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:15:18,925 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:15:18,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:15:18,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:15:18,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:15:18,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:15:18,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:15:18,926 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:15:18,928 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:15:18,928 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_37847a63-ac36-4a29-9fbd-46311c3b07f0/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37847a63-ac36-4a29-9fbd-46311c3b07f0/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6ca8c561d44a725c9e83a72546b64d4a8d527f7d8e8f11c5a3011fde526bfd5 [2021-10-21 19:15:19,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:15:19,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:15:19,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:15:19,243 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:15:19,245 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:15:19,246 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37847a63-ac36-4a29-9fbd-46311c3b07f0/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec4_product05.cil.c [2021-10-21 19:15:19,328 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37847a63-ac36-4a29-9fbd-46311c3b07f0/bin/uautomizer-j4sWxH34Be/data/b1c32cccd/2f23b22bd84945fdb109ca7f422bf451/FLAGe13072c45 [2021-10-21 19:15:19,823 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:15:19,824 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37847a63-ac36-4a29-9fbd-46311c3b07f0/sv-benchmarks/c/product-lines/minepump_spec4_product05.cil.c [2021-10-21 19:15:19,840 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37847a63-ac36-4a29-9fbd-46311c3b07f0/bin/uautomizer-j4sWxH34Be/data/b1c32cccd/2f23b22bd84945fdb109ca7f422bf451/FLAGe13072c45 [2021-10-21 19:15:20,126 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37847a63-ac36-4a29-9fbd-46311c3b07f0/bin/uautomizer-j4sWxH34Be/data/b1c32cccd/2f23b22bd84945fdb109ca7f422bf451 [2021-10-21 19:15:20,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:15:20,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:15:20,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:15:20,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:15:20,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:15:20,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:15:20" (1/1) ... [2021-10-21 19:15:20,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@224014f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:20, skipping insertion in model container [2021-10-21 19:15:20,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:15:20" (1/1) ... [2021-10-21 19:15:20,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:15:20,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:15:20,515 WARN L228 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_37847a63-ac36-4a29-9fbd-46311c3b07f0/sv-benchmarks/c/product-lines/minepump_spec4_product05.cil.c[16642,16655] [2021-10-21 19:15:20,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:15:20,530 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:15:20,599 WARN L228 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_37847a63-ac36-4a29-9fbd-46311c3b07f0/sv-benchmarks/c/product-lines/minepump_spec4_product05.cil.c[16642,16655] [2021-10-21 19:15:20,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:15:20,622 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:15:20,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:20 WrapperNode [2021-10-21 19:15:20,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:15:20,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:15:20,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:15:20,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:15:20,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:20" (1/1) ... [2021-10-21 19:15:20,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:20" (1/1) ... [2021-10-21 19:15:20,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:15:20,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:15:20,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:15:20,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:15:20,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:20" (1/1) ... [2021-10-21 19:15:20,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:20" (1/1) ... [2021-10-21 19:15:20,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:20" (1/1) ... [2021-10-21 19:15:20,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:20" (1/1) ... [2021-10-21 19:15:20,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:20" (1/1) ... [2021-10-21 19:15:20,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:20" (1/1) ... [2021-10-21 19:15:20,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:20" (1/1) ... [2021-10-21 19:15:20,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:15:20,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:15:20,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:15:20,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:15:20,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:20" (1/1) ... [2021-10-21 19:15:20,807 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:20,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37847a63-ac36-4a29-9fbd-46311c3b07f0/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:20,836 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37847a63-ac36-4a29-9fbd-46311c3b07f0/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:20,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37847a63-ac36-4a29-9fbd-46311c3b07f0/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:15:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:15:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:15:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:15:20,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:15:21,816 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:15:21,817 INFO L299 CfgBuilder]: Removed 96 assume(true) statements. [2021-10-21 19:15:21,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:15:21 BoogieIcfgContainer [2021-10-21 19:15:21,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:15:21,820 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:15:21,820 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:15:21,825 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:15:21,825 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:15:21,826 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:15:20" (1/3) ... [2021-10-21 19:15:21,828 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1639706d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:15:21, skipping insertion in model container [2021-10-21 19:15:21,828 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:15:21,828 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:20" (2/3) ... [2021-10-21 19:15:21,828 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1639706d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:15:21, skipping insertion in model container [2021-10-21 19:15:21,828 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:15:21,828 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:15:21" (3/3) ... [2021-10-21 19:15:21,830 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product05.cil.c [2021-10-21 19:15:21,886 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:15:21,886 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:15:21,886 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:15:21,886 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:15:21,887 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:15:21,887 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:15:21,887 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:15:21,887 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:15:21,910 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 66 states, 65 states have (on average 1.523076923076923) internal successors, (99), 65 states have internal predecessors, (99), 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) [2021-10-21 19:15:21,951 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-10-21 19:15:21,951 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:15:21,952 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:15:21,960 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:15:21,961 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:15:21,961 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:15:21,962 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 66 states, 65 states have (on average 1.523076923076923) internal successors, (99), 65 states have internal predecessors, (99), 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) [2021-10-21 19:15:21,977 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-10-21 19:15:21,977 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:15:21,978 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:15:21,979 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:15:21,979 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:15:21,991 INFO L791 eck$LassoCheckResult]: Stem: 52#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 37#L-1true havoc main_#res;havoc main_#t~ret52, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 44#L864true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 15#L872true main_#t~ret52 := valid_product_#res;main_~tmp~3 := main_#t~ret52;havoc main_#t~ret52; 45#L590true assume 0 != main_~tmp~3; 64#L563true havoc test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 24#L815-1true [2021-10-21 19:15:21,992 INFO L793 eck$LassoCheckResult]: Loop: 24#L815-1true assume !false; 9#L615true assume test_~splverifierCounter~0 < 4; 32#L616true test_~tmp~4 := test_#t~nondet53;havoc test_#t~nondet53; 40#L624true assume !(0 != test_~tmp~4); 16#L624-1true test_~tmp___0~0 := test_#t~nondet54;havoc test_#t~nondet54; 22#L634true assume !(0 != test_~tmp___0~0); 60#L634-1true test_~tmp___2~0 := test_#t~nondet55;havoc test_#t~nondet55; 34#L644true assume 0 != test_~tmp___2~0; 5#L650-2true assume !(0 != ~pumpRunning~0); 56#L680true assume !(0 != ~systemActive~0); 55#L687true havoc __utac_acc__Specification4_spec__1_#t~ret75, __utac_acc__Specification4_spec__1_#t~ret76, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~1;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 42#L131true __utac_acc__Specification4_spec__1_#t~ret75 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret75;havoc __utac_acc__Specification4_spec__1_#t~ret75; 10#L815true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 24#L815-1true [2021-10-21 19:15:21,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:21,998 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-21 19:15:22,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:22,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232881236] [2021-10-21 19:15:22,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:22,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:22,360 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:22,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:22,507 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:22,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:22,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1681899262, now seen corresponding path program 1 times [2021-10-21 19:15:22,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:22,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868892840] [2021-10-21 19:15:22,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:22,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:22,519 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:22,529 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:22,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:22,531 INFO L82 PathProgramCache]: Analyzing trace with hash 32379676, now seen corresponding path program 1 times [2021-10-21 19:15:22,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:22,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860817088] [2021-10-21 19:15:22,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:22,532 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:22,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:22,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:15:22,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860817088] [2021-10-21 19:15:22,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860817088] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:15:22,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:15:22,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:15:22,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533925981] [2021-10-21 19:15:22,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:15:22,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:15:22,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:15:22,812 INFO L87 Difference]: Start difference. First operand has 66 states, 65 states have (on average 1.523076923076923) internal successors, (99), 65 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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) [2021-10-21 19:15:23,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:15:23,027 INFO L93 Difference]: Finished difference Result 66 states and 88 transitions. [2021-10-21 19:15:23,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:15:23,030 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 88 transitions. [2021-10-21 19:15:23,032 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-21 19:15:23,037 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 59 states and 81 transitions. [2021-10-21 19:15:23,038 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2021-10-21 19:15:23,039 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2021-10-21 19:15:23,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 81 transitions. [2021-10-21 19:15:23,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:15:23,040 INFO L681 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-10-21 19:15:23,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 81 transitions. [2021-10-21 19:15:23,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-10-21 19:15:23,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 58 states have internal predecessors, (81), 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) [2021-10-21 19:15:23,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2021-10-21 19:15:23,071 INFO L704 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-10-21 19:15:23,072 INFO L587 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-10-21 19:15:23,072 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:15:23,072 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 81 transitions. [2021-10-21 19:15:23,074 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-21 19:15:23,074 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:15:23,074 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:15:23,075 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:15:23,075 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:15:23,075 INFO L791 eck$LassoCheckResult]: Stem: 207#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 196#L-1 havoc main_#res;havoc main_#t~ret52, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 197#L864 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 176#L872 main_#t~ret52 := valid_product_#res;main_~tmp~3 := main_#t~ret52;havoc main_#t~ret52; 177#L590 assume 0 != main_~tmp~3; 203#L563 havoc test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 169#L815-1 [2021-10-21 19:15:23,076 INFO L793 eck$LassoCheckResult]: Loop: 169#L815-1 assume !false; 162#L615 assume test_~splverifierCounter~0 < 4; 163#L616 test_~tmp~4 := test_#t~nondet53;havoc test_#t~nondet53; 192#L624 assume !(0 != test_~tmp~4); 158#L624-1 test_~tmp___0~0 := test_#t~nondet54;havoc test_#t~nondet54; 178#L634 assume !(0 != test_~tmp___0~0); 151#L634-1 test_~tmp___2~0 := test_#t~nondet55;havoc test_#t~nondet55; 194#L644 assume 0 != test_~tmp___2~0; 154#L650-2 assume !(0 != ~pumpRunning~0); 155#L680 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 208#L712 assume !(0 != ~pumpRunning~0); 204#L687 havoc __utac_acc__Specification4_spec__1_#t~ret75, __utac_acc__Specification4_spec__1_#t~ret76, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~1;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 200#L131 __utac_acc__Specification4_spec__1_#t~ret75 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret75;havoc __utac_acc__Specification4_spec__1_#t~ret75; 167#L815 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 169#L815-1 [2021-10-21 19:15:23,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:23,077 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-21 19:15:23,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:23,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618517948] [2021-10-21 19:15:23,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:23,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:23,129 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:23,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:23,232 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:23,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:23,237 INFO L82 PathProgramCache]: Analyzing trace with hash -619797861, now seen corresponding path program 1 times [2021-10-21 19:15:23,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:23,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51205498] [2021-10-21 19:15:23,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:23,239 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:23,249 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:23,258 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:23,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:23,270 INFO L82 PathProgramCache]: Analyzing trace with hash 983241665, now seen corresponding path program 1 times [2021-10-21 19:15:23,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:23,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137724291] [2021-10-21 19:15:23,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:23,271 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:23,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:23,353 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:23,463 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:16:24,776 WARN L207 SmtUtils]: Spent 1.02 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-21 19:17:27,833 WARN L207 SmtUtils]: Spent 30.64 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-21 19:17:27,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:17:27 BoogieIcfgContainer [2021-10-21 19:17:27,980 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:17:27,980 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:17:27,980 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:17:27,981 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:17:27,981 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:15:21" (3/4) ... [2021-10-21 19:17:27,984 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:17:28,033 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37847a63-ac36-4a29-9fbd-46311c3b07f0/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:17:28,033 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:17:28,034 INFO L168 Benchmark]: Toolchain (without parser) took 127902.09 ms. Allocated memory was 92.3 MB in the beginning and 136.3 MB in the end (delta: 44.0 MB). Free memory was 55.8 MB in the beginning and 101.3 MB in the end (delta: -45.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:17:28,035 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 92.3 MB. Free memory was 62.3 MB in the beginning and 62.2 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:17:28,036 INFO L168 Benchmark]: CACSL2BoogieTranslator took 485.66 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 55.7 MB in the beginning and 80.5 MB in the end (delta: -24.8 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2021-10-21 19:17:28,036 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.27 ms. Allocated memory is still 113.2 MB. Free memory was 80.5 MB in the beginning and 77.7 MB in the end (delta: 2.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:17:28,037 INFO L168 Benchmark]: Boogie Preprocessor took 72.39 ms. Allocated memory is still 113.2 MB. Free memory was 77.7 MB in the beginning and 75.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:17:28,037 INFO L168 Benchmark]: RCFGBuilder took 1025.27 ms. Allocated memory is still 113.2 MB. Free memory was 75.6 MB in the beginning and 69.4 MB in the end (delta: 6.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:17:28,038 INFO L168 Benchmark]: BuchiAutomizer took 126159.90 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 68.9 MB in the beginning and 103.3 MB in the end (delta: -34.4 MB). Peak memory consumption was 66.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:17:28,038 INFO L168 Benchmark]: Witness Printer took 52.75 ms. Allocated memory is still 136.3 MB. Free memory was 103.3 MB in the beginning and 101.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:17:28,042 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 92.3 MB. Free memory was 62.3 MB in the beginning and 62.2 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 485.66 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 55.7 MB in the beginning and 80.5 MB in the end (delta: -24.8 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 95.27 ms. Allocated memory is still 113.2 MB. Free memory was 80.5 MB in the beginning and 77.7 MB in the end (delta: 2.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.39 ms. Allocated memory is still 113.2 MB. Free memory was 77.7 MB in the beginning and 75.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1025.27 ms. Allocated memory is still 113.2 MB. Free memory was 75.6 MB in the beginning and 69.4 MB in the end (delta: 6.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 126159.90 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 68.9 MB in the beginning and 103.3 MB in the end (delta: -34.4 MB). Peak memory consumption was 66.8 MB. Max. memory is 16.1 GB. * Witness Printer took 52.75 ms. Allocated memory is still 136.3 MB. Free memory was 103.3 MB in the beginning and 101.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 59 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 126.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 125.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 17.2ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 59 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 83 SDtfs, 331 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 155.5ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 614]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3457} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, NULL=3463, NULL=0, NULL=3457, NULL=3464, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c796640=0, NULL=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@558db8ef=0, NULL=0, NULL=3459, NULL=3471, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@287461b2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2668d8d=0, NULL=3465, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@dff15d7=0, NULL=3462, NULL=3478, tmp=0, NULL=0, NULL=0, NULL=3467, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39ec92d3=0, NULL=0, NULL=0, NULL=0, NULL=3483, tmp___0=0, NULL=3474, cleanupTimeShifts=4, NULL=3477, NULL=3484, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=3476, NULL=0, NULL=3468, NULL=3480, tmp___0=0, NULL=3458, NULL=3481, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=3482, \result=0, tmp=1, NULL=3472, NULL=0, NULL=3466, NULL=0, NULL=0, NULL=0, NULL=3485, NULL=3473, retValue_acc=1, NULL=0, NULL=0, tmp=1, NULL=3470, tmp___2=64, splverifierCounter=0, NULL=0, NULL=3461, NULL=3469, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f3ba600=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a5e1758=64, head=0, tmp=0, NULL=0, NULL=0, NULL=3479, NULL=3475, NULL=3460, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L56] int waterLevel = 1; [L57] int methaneLevelCritical = 0; [L305] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L502] int cleanupTimeShifts = 4; [L672] int pumpRunning = 0; [L673] int systemActive = 1; [L581] int retValue_acc ; [L582] int tmp ; [L868] int retValue_acc ; [L871] retValue_acc = 1 [L872] return (retValue_acc); [L588] tmp = valid_product() [L590] COND TRUE \read(tmp) [L605] int splverifierCounter ; [L606] int tmp ; [L607] int tmp___0 ; [L608] int tmp___1 ; [L609] int tmp___2 ; [L612] splverifierCounter = 0 Loop: [L614] COND TRUE 1 [L616] COND TRUE splverifierCounter < 4 [L622] tmp = __VERIFIER_nondet_int() [L624] COND FALSE !(\read(tmp)) [L632] tmp___0 = __VERIFIER_nondet_int() [L634] COND FALSE !(\read(tmp___0)) [L642] tmp___2 = __VERIFIER_nondet_int() [L644] COND TRUE \read(tmp___2) [L680] COND FALSE !(\read(pumpRunning)) [L687] COND TRUE \read(systemActive) [L709] int tmp ; [L712] COND FALSE !(\read(pumpRunning)) [L808] int tmp ; [L809] int tmp___0 ; [L127] int retValue_acc ; [L130] retValue_acc = waterLevel [L131] return (retValue_acc); [L813] tmp = getWaterLevel() [L815] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:17:28,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37847a63-ac36-4a29-9fbd-46311c3b07f0/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...