./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87bdc931-7b13-43cf-b33b-68d0db616935/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87bdc931-7b13-43cf-b33b-68d0db616935/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87bdc931-7b13-43cf-b33b-68d0db616935/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87bdc931-7b13-43cf-b33b-68d0db616935/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87bdc931-7b13-43cf-b33b-68d0db616935/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87bdc931-7b13-43cf-b33b-68d0db616935/bin/uautomizer-uyxdKDjOR8 --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 2165aefdca75c2370f155996346c5c4ea8ed352d96946243b70bd7ef162ab29f --- 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-2329fc7 [2022-12-13 12:22:52,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:22:52,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:22:52,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:22:52,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:22:52,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:22:52,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:22:52,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:22:52,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:22:52,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:22:52,899 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:22:52,900 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:22:52,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:22:52,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:22:52,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:22:52,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:22:52,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:22:52,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:22:52,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:22:52,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:22:52,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:22:52,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:22:52,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:22:52,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:22:52,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:22:52,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:22:52,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:22:52,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:22:52,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:22:52,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:22:52,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:22:52,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:22:52,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:22:52,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:22:52,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:22:52,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:22:52,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:22:52,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:22:52,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:22:52,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:22:52,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:22:52,918 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87bdc931-7b13-43cf-b33b-68d0db616935/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 12:22:52,939 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:22:52,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:22:52,945 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:22:52,945 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:22:52,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:22:52,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:22:52,947 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:22:52,947 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 12:22:52,947 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 12:22:52,947 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 12:22:52,947 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 12:22:52,948 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 12:22:52,948 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 12:22:52,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:22:52,948 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:22:52,948 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:22:52,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:22:52,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:22:52,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:22:52,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 12:22:52,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 12:22:52,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 12:22:52,949 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:22:52,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:22:52,949 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 12:22:52,950 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:22:52,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 12:22:52,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:22:52,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:22:52,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:22:52,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:22:52,951 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 12:22:52,951 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_87bdc931-7b13-43cf-b33b-68d0db616935/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87bdc931-7b13-43cf-b33b-68d0db616935/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2165aefdca75c2370f155996346c5c4ea8ed352d96946243b70bd7ef162ab29f [2022-12-13 12:22:53,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:22:53,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:22:53,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:22:53,144 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:22:53,144 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:22:53,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87bdc931-7b13-43cf-b33b-68d0db616935/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c [2022-12-13 12:22:55,689 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:22:55,872 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:22:55,872 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87bdc931-7b13-43cf-b33b-68d0db616935/sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c [2022-12-13 12:22:55,881 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87bdc931-7b13-43cf-b33b-68d0db616935/bin/uautomizer-uyxdKDjOR8/data/c13ce3047/175659e34d814c1da5647cd293518712/FLAG935e3f3f3 [2022-12-13 12:22:55,891 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87bdc931-7b13-43cf-b33b-68d0db616935/bin/uautomizer-uyxdKDjOR8/data/c13ce3047/175659e34d814c1da5647cd293518712 [2022-12-13 12:22:55,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:22:55,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:22:55,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:22:55,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:22:55,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:22:55,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:22:55" (1/1) ... [2022-12-13 12:22:55,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aede529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:22:55, skipping insertion in model container [2022-12-13 12:22:55,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:22:55" (1/1) ... [2022-12-13 12:22:55,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:22:55,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:22:56,095 WARN L237 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_87bdc931-7b13-43cf-b33b-68d0db616935/sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c[8940,8953] [2022-12-13 12:22:56,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:22:56,153 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:22:56,183 WARN L237 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_87bdc931-7b13-43cf-b33b-68d0db616935/sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c[8940,8953] [2022-12-13 12:22:56,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:22:56,228 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:22:56,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:22:56 WrapperNode [2022-12-13 12:22:56,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:22:56,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:22:56,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:22:56,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:22:56,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:22:56" (1/1) ... [2022-12-13 12:22:56,244 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:22:56" (1/1) ... [2022-12-13 12:22:56,265 INFO L138 Inliner]: procedures = 56, calls = 100, calls flagged for inlining = 53, calls inlined = 79, statements flattened = 550 [2022-12-13 12:22:56,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:22:56,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:22:56,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:22:56,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:22:56,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:22:56" (1/1) ... [2022-12-13 12:22:56,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:22:56" (1/1) ... [2022-12-13 12:22:56,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:22:56" (1/1) ... [2022-12-13 12:22:56,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:22:56" (1/1) ... [2022-12-13 12:22:56,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:22:56" (1/1) ... [2022-12-13 12:22:56,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:22:56" (1/1) ... [2022-12-13 12:22:56,289 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:22:56" (1/1) ... [2022-12-13 12:22:56,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:22:56" (1/1) ... [2022-12-13 12:22:56,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:22:56,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:22:56,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:22:56,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:22:56,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:22:56" (1/1) ... [2022-12-13 12:22:56,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:22:56,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87bdc931-7b13-43cf-b33b-68d0db616935/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:22:56,315 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87bdc931-7b13-43cf-b33b-68d0db616935/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:22:56,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87bdc931-7b13-43cf-b33b-68d0db616935/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 12:22:56,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:22:56,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:22:56,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:22:56,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:22:56,402 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:22:56,404 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:22:56,703 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:22:56,711 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:22:56,711 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 12:22:56,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:22:56 BoogieIcfgContainer [2022-12-13 12:22:56,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:22:56,715 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 12:22:56,715 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 12:22:56,719 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 12:22:56,720 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:22:56,720 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 12:22:55" (1/3) ... [2022-12-13 12:22:56,721 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@10472254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 12:22:56, skipping insertion in model container [2022-12-13 12:22:56,721 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:22:56,721 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:22:56" (2/3) ... [2022-12-13 12:22:56,721 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@10472254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 12:22:56, skipping insertion in model container [2022-12-13 12:22:56,721 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:22:56,722 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:22:56" (3/3) ... [2022-12-13 12:22:56,723 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product51.cil.c [2022-12-13 12:22:56,770 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 12:22:56,770 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 12:22:56,771 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 12:22:56,771 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 12:22:56,771 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 12:22:56,771 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 12:22:56,771 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 12:22:56,771 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 12:22:56,775 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 166 states, 165 states have (on average 1.3757575757575757) internal successors, (227), 165 states have internal predecessors, (227), 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) [2022-12-13 12:22:56,793 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 108 [2022-12-13 12:22:56,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:22:56,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:22:56,798 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:22:56,798 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:22:56,798 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 12:22:56,799 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 166 states, 165 states have (on average 1.3757575757575757) internal successors, (227), 165 states have internal predecessors, (227), 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) [2022-12-13 12:22:56,804 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 108 [2022-12-13 12:22:56,804 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:22:56,804 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:22:56,805 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:22:56,805 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:22:56,809 INFO L748 eck$LassoCheckResult]: Stem: 29#$Ultimate##0true 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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 43#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 24#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 130#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 116#valid_product_returnLabel#1true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 66#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 88#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 157#L551-2true [2022-12-13 12:22:56,809 INFO L750 eck$LassoCheckResult]: Loop: 157#L551-2true assume !false; 48#L552true assume test_~splverifierCounter~0#1 < 4; 97#L553true test_~tmp~6#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 89#L561true assume !(0 != test_~tmp~6#1); 41#L561-2true test_~tmp___0~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 148#L571true assume !(0 != test_~tmp___0~3#1); 35#L571-2true test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 164#L581true assume 0 != test_~tmp___2~0#1; 76#L587-2true assume { :begin_inline_timeShift } true; 98#L336true assume !(0 != ~pumpRunning~0); 99#L336-2true assume !(0 != ~systemActive~0); 55#L343-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_#t~ret6#1, __utac_acc__Specification4_spec__1_~tmp~1#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~1#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; 77#getWaterLevel_returnLabel#1true __utac_acc__Specification4_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~1#1 := __utac_acc__Specification4_spec__1_#t~ret5#1;havoc __utac_acc__Specification4_spec__1_#t~ret5#1; 14#L165true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1#1); 19#L165-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 78#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 157#L551-2true [2022-12-13 12:22:56,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:22:56,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-12-13 12:22:56,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:22:56,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239292786] [2022-12-13 12:22:56,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:22:56,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:22:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:22:56,898 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:22:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:22:56,931 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:22:56,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:22:56,934 INFO L85 PathProgramCache]: Analyzing trace with hash 376889956, now seen corresponding path program 1 times [2022-12-13 12:22:56,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:22:56,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585458134] [2022-12-13 12:22:56,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:22:56,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:22:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:22:56,944 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:22:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:22:56,952 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:22:56,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:22:56,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1732309032, now seen corresponding path program 1 times [2022-12-13 12:22:56,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:22:56,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789265162] [2022-12-13 12:22:56,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:22:56,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:22:56,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:22:57,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:22:57,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:22:57,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789265162] [2022-12-13 12:22:57,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789265162] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:22:57,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:22:57,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:22:57,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346282252] [2022-12-13 12:22:57,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:22:57,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:22:57,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:22:57,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:22:57,213 INFO L87 Difference]: Start difference. First operand has 166 states, 165 states have (on average 1.3757575757575757) internal successors, (227), 165 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:22:57,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:22:57,312 INFO L93 Difference]: Finished difference Result 383 states and 503 transitions. [2022-12-13 12:22:57,313 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 383 states and 503 transitions. [2022-12-13 12:22:57,320 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 247 [2022-12-13 12:22:57,326 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 383 states to 353 states and 473 transitions. [2022-12-13 12:22:57,327 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 353 [2022-12-13 12:22:57,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 353 [2022-12-13 12:22:57,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 353 states and 473 transitions. [2022-12-13 12:22:57,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:22:57,331 INFO L218 hiAutomatonCegarLoop]: Abstraction has 353 states and 473 transitions. [2022-12-13 12:22:57,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states and 473 transitions. [2022-12-13 12:22:57,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 205. [2022-12-13 12:22:57,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 205 states have (on average 1.3365853658536586) internal successors, (274), 204 states have internal predecessors, (274), 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) [2022-12-13 12:22:57,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 274 transitions. [2022-12-13 12:22:57,365 INFO L240 hiAutomatonCegarLoop]: Abstraction has 205 states and 274 transitions. [2022-12-13 12:22:57,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:22:57,369 INFO L428 stractBuchiCegarLoop]: Abstraction has 205 states and 274 transitions. [2022-12-13 12:22:57,369 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 12:22:57,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 205 states and 274 transitions. [2022-12-13 12:22:57,370 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 144 [2022-12-13 12:22:57,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:22:57,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:22:57,371 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:22:57,371 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] [2022-12-13 12:22:57,371 INFO L748 eck$LassoCheckResult]: Stem: 608#$Ultimate##0 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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 609#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 605#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 606#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 707#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 659#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 660#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 669#L551-2 [2022-12-13 12:22:57,371 INFO L750 eck$LassoCheckResult]: Loop: 669#L551-2 assume !false; 635#L552 assume test_~splverifierCounter~0#1 < 4; 636#L553 test_~tmp~6#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 677#L561 assume !(0 != test_~tmp~6#1); 626#L561-2 test_~tmp___0~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 627#L571 assume !(0 != test_~tmp___0~3#1); 591#L571-2 test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 618#L581 assume 0 != test_~tmp___2~0#1; 667#L587-2 assume { :begin_inline_timeShift } true; 668#L336 assume !(0 != ~pumpRunning~0); 687#L336-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 592#L394 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 593#L368-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 567#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 568#L368-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 652#L394-1 assume { :end_inline_processEnvironment } true; 647#L343-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_#t~ret6#1, __utac_acc__Specification4_spec__1_~tmp~1#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~1#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; 648#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~1#1 := __utac_acc__Specification4_spec__1_#t~ret5#1;havoc __utac_acc__Specification4_spec__1_#t~ret5#1; 583#L165 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1#1); 585#L165-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 595#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 669#L551-2 [2022-12-13 12:22:57,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:22:57,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-12-13 12:22:57,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:22:57,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161358481] [2022-12-13 12:22:57,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:22:57,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:22:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:22:57,386 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:22:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:22:57,395 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:22:57,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:22:57,396 INFO L85 PathProgramCache]: Analyzing trace with hash 202053518, now seen corresponding path program 1 times [2022-12-13 12:22:57,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:22:57,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333721888] [2022-12-13 12:22:57,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:22:57,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:22:57,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:22:57,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:22:57,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:22:57,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333721888] [2022-12-13 12:22:57,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333721888] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:22:57,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:22:57,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:22:57,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816803093] [2022-12-13 12:22:57,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:22:57,418 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 12:22:57,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:22:57,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:22:57,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:22:57,419 INFO L87 Difference]: Start difference. First operand 205 states and 274 transitions. cyclomatic complexity: 72 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-12-13 12:22:57,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:22:57,467 INFO L93 Difference]: Finished difference Result 255 states and 325 transitions. [2022-12-13 12:22:57,467 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 255 states and 325 transitions. [2022-12-13 12:22:57,469 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 183 [2022-12-13 12:22:57,471 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 255 states to 255 states and 325 transitions. [2022-12-13 12:22:57,471 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 255 [2022-12-13 12:22:57,472 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 255 [2022-12-13 12:22:57,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 255 states and 325 transitions. [2022-12-13 12:22:57,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:22:57,473 INFO L218 hiAutomatonCegarLoop]: Abstraction has 255 states and 325 transitions. [2022-12-13 12:22:57,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states and 325 transitions. [2022-12-13 12:22:57,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2022-12-13 12:22:57,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 255 states have (on average 1.2745098039215685) internal successors, (325), 254 states have internal predecessors, (325), 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) [2022-12-13 12:22:57,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 325 transitions. [2022-12-13 12:22:57,482 INFO L240 hiAutomatonCegarLoop]: Abstraction has 255 states and 325 transitions. [2022-12-13 12:22:57,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:22:57,484 INFO L428 stractBuchiCegarLoop]: Abstraction has 255 states and 325 transitions. [2022-12-13 12:22:57,484 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 12:22:57,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 255 states and 325 transitions. [2022-12-13 12:22:57,485 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 183 [2022-12-13 12:22:57,486 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:22:57,486 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:22:57,486 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:22:57,486 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:22:57,487 INFO L748 eck$LassoCheckResult]: Stem: 1071#$Ultimate##0 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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1072#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1068#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1069#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 1178#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1127#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1128#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1139#L551-2 [2022-12-13 12:22:57,487 INFO L750 eck$LassoCheckResult]: Loop: 1139#L551-2 assume !false; 1099#L552 assume test_~splverifierCounter~0#1 < 4; 1100#L553 test_~tmp~6#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 1147#L561 assume !(0 != test_~tmp~6#1); 1090#L561-2 test_~tmp___0~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 1091#L571 assume !(0 != test_~tmp___0~3#1); 1055#L571-2 test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1081#L581 assume 0 != test_~tmp___2~0#1; 1137#L587-2 assume { :begin_inline_timeShift } true; 1138#L336 assume !(0 != ~pumpRunning~0); 1157#L336-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1056#L394 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 1057#L368-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;havoc isHighWaterSensorDry_~retValue_acc~3#1; 1063#L271-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; 1064#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret24#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#1; 1033#L496-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1034#L496-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 1082#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 1077#L372-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1079#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1083#L368-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1120#L394-1 assume { :end_inline_processEnvironment } true; 1114#L343-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_#t~ret6#1, __utac_acc__Specification4_spec__1_~tmp~1#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~1#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; 1115#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~1#1 := __utac_acc__Specification4_spec__1_#t~ret5#1;havoc __utac_acc__Specification4_spec__1_#t~ret5#1; 1047#L165 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1#1); 1049#L165-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1058#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1139#L551-2 [2022-12-13 12:22:57,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:22:57,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-12-13 12:22:57,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:22:57,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132319589] [2022-12-13 12:22:57,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:22:57,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:22:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:22:57,507 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:22:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:22:57,516 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:22:57,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:22:57,516 INFO L85 PathProgramCache]: Analyzing trace with hash 578488294, now seen corresponding path program 1 times [2022-12-13 12:22:57,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:22:57,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697855182] [2022-12-13 12:22:57,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:22:57,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:22:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:22:57,525 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:22:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:22:57,534 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:22:57,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:22:57,535 INFO L85 PathProgramCache]: Analyzing trace with hash 953776034, now seen corresponding path program 1 times [2022-12-13 12:22:57,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:22:57,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005006039] [2022-12-13 12:22:57,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:22:57,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:22:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:22:57,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:22:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:22:57,563 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:22:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:22:58,304 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:22:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:22:58,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 12:22:58 BoogieIcfgContainer [2022-12-13 12:22:58,341 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 12:22:58,341 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:22:58,341 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:22:58,342 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:22:58,342 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:22:56" (3/4) ... [2022-12-13 12:22:58,344 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 12:22:58,380 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87bdc931-7b13-43cf-b33b-68d0db616935/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 12:22:58,380 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:22:58,381 INFO L158 Benchmark]: Toolchain (without parser) took 2486.36ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 106.0MB in the beginning and 108.0MB in the end (delta: -2.0MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2022-12-13 12:22:58,381 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 142.6MB. Free memory was 109.3MB in the beginning and 109.2MB in the end (delta: 127.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:22:58,381 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.01ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 87.4MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 12:22:58,382 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.66ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 84.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:22:58,382 INFO L158 Benchmark]: Boogie Preprocessor took 26.72ms. Allocated memory is still 142.6MB. Free memory was 84.3MB in the beginning and 81.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:22:58,383 INFO L158 Benchmark]: RCFGBuilder took 421.71ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 81.8MB in the beginning and 140.7MB in the end (delta: -58.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-12-13 12:22:58,383 INFO L158 Benchmark]: BuchiAutomizer took 1625.88ms. Allocated memory is still 172.0MB. Free memory was 140.7MB in the beginning and 111.2MB in the end (delta: 29.6MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2022-12-13 12:22:58,384 INFO L158 Benchmark]: Witness Printer took 38.57ms. Allocated memory is still 172.0MB. Free memory was 111.2MB in the beginning and 108.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:22:58,386 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 142.6MB. Free memory was 109.3MB in the beginning and 109.2MB in the end (delta: 127.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.01ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 87.4MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.66ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 84.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.72ms. Allocated memory is still 142.6MB. Free memory was 84.3MB in the beginning and 81.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 421.71ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 81.8MB in the beginning and 140.7MB in the end (delta: -58.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1625.88ms. Allocated memory is still 172.0MB. Free memory was 140.7MB in the beginning and 111.2MB in the end (delta: 29.6MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Witness Printer took 38.57ms. Allocated memory is still 172.0MB. Free memory was 111.2MB in the beginning and 108.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 255 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 148 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1147 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1147 mSDsluCounter, 1366 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 939 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 427 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 551]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L50] int cleanupTimeShifts = 4; [L188] int waterLevel = 1; [L189] int methaneLevelCritical = 0; [L329] int pumpRunning = 0; [L330] int systemActive = 1; [L786] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L317] int retValue_acc ; [L320] retValue_acc = 1 [L321] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L542] int splverifierCounter ; [L543] int tmp ; [L544] int tmp___0 ; [L545] int tmp___1 ; [L546] int tmp___2 ; [L549] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L551] COND TRUE 1 [L553] COND TRUE splverifierCounter < 4 [L559] tmp = __VERIFIER_nondet_int() [L561] COND FALSE !(\read(tmp)) [L569] tmp___0 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___0)) [L579] tmp___2 = __VERIFIER_nondet_int() [L581] COND TRUE \read(tmp___2) [L596] CALL timeShift() [L336] COND FALSE !(\read(pumpRunning)) [L343] COND TRUE \read(systemActive) [L345] CALL processEnvironment() [L391] int tmp ; [L394] COND FALSE !(\read(pumpRunning)) [L409] CALL processEnvironment__wrappee__highWaterSensor() [L365] int tmp ; [L368] COND TRUE ! pumpRunning [L370] CALL, EXPR isHighWaterLevel() [L488] int retValue_acc ; [L489] int tmp ; [L490] int tmp___0 ; [L494] CALL, EXPR isHighWaterSensorDry() [L268] int retValue_acc ; [L271] COND TRUE waterLevel < 2 [L272] retValue_acc = 1 [L273] return (retValue_acc); [L494] RET, EXPR isHighWaterSensorDry() [L494] tmp = isHighWaterSensorDry() [L496] COND TRUE \read(tmp) [L497] tmp___0 = 0 [L501] retValue_acc = tmp___0 [L502] return (retValue_acc); [L370] RET, EXPR isHighWaterLevel() [L370] tmp = isHighWaterLevel() [L372] COND FALSE !(\read(tmp)) [L378] FCALL processEnvironment__wrappee__base() [L409] RET processEnvironment__wrappee__highWaterSensor() [L345] RET processEnvironment() [L351] CALL __utac_acc__Specification4_spec__1() [L158] int tmp ; [L159] int tmp___0 ; [L163] CALL, EXPR getWaterLevel() [L259] int retValue_acc ; [L262] retValue_acc = waterLevel [L263] return (retValue_acc); [L163] RET, EXPR getWaterLevel() [L163] tmp = getWaterLevel() [L165] COND FALSE !(tmp == 0) [L351] RET __utac_acc__Specification4_spec__1() [L596] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 551]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L188] int waterLevel = 1; [L189] int methaneLevelCritical = 0; [L329] int pumpRunning = 0; [L330] int systemActive = 1; [L786] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L317] int retValue_acc ; [L320] retValue_acc = 1 [L321] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L542] int splverifierCounter ; [L543] int tmp ; [L544] int tmp___0 ; [L545] int tmp___1 ; [L546] int tmp___2 ; [L549] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L551] COND TRUE 1 [L553] COND TRUE splverifierCounter < 4 [L559] tmp = __VERIFIER_nondet_int() [L561] COND FALSE !(\read(tmp)) [L569] tmp___0 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___0)) [L579] tmp___2 = __VERIFIER_nondet_int() [L581] COND TRUE \read(tmp___2) [L596] CALL timeShift() [L336] COND FALSE !(\read(pumpRunning)) [L343] COND TRUE \read(systemActive) [L345] CALL processEnvironment() [L391] int tmp ; [L394] COND FALSE !(\read(pumpRunning)) [L409] CALL processEnvironment__wrappee__highWaterSensor() [L365] int tmp ; [L368] COND TRUE ! pumpRunning [L370] CALL, EXPR isHighWaterLevel() [L488] int retValue_acc ; [L489] int tmp ; [L490] int tmp___0 ; [L494] CALL, EXPR isHighWaterSensorDry() [L268] int retValue_acc ; [L271] COND TRUE waterLevel < 2 [L272] retValue_acc = 1 [L273] return (retValue_acc); [L494] RET, EXPR isHighWaterSensorDry() [L494] tmp = isHighWaterSensorDry() [L496] COND TRUE \read(tmp) [L497] tmp___0 = 0 [L501] retValue_acc = tmp___0 [L502] return (retValue_acc); [L370] RET, EXPR isHighWaterLevel() [L370] tmp = isHighWaterLevel() [L372] COND FALSE !(\read(tmp)) [L378] FCALL processEnvironment__wrappee__base() [L409] RET processEnvironment__wrappee__highWaterSensor() [L345] RET processEnvironment() [L351] CALL __utac_acc__Specification4_spec__1() [L158] int tmp ; [L159] int tmp___0 ; [L163] CALL, EXPR getWaterLevel() [L259] int retValue_acc ; [L262] retValue_acc = waterLevel [L263] return (retValue_acc); [L163] RET, EXPR getWaterLevel() [L163] tmp = getWaterLevel() [L165] COND FALSE !(tmp == 0) [L351] RET __utac_acc__Specification4_spec__1() [L596] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 12:22:58,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87bdc931-7b13-43cf-b33b-68d0db616935/bin/uautomizer-uyxdKDjOR8/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)