./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product22.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_b26507b5-0aba-48d5-a93b-320d665a1743/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b26507b5-0aba-48d5-a93b-320d665a1743/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_b26507b5-0aba-48d5-a93b-320d665a1743/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b26507b5-0aba-48d5-a93b-320d665a1743/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b26507b5-0aba-48d5-a93b-320d665a1743/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_b26507b5-0aba-48d5-a93b-320d665a1743/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 1f2870beb38cc74f17a96c393839e7d6d2f1f4f9c95ce97be38a991d6b510bc3 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 20:16:58,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:16:58,693 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:16:58,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:16:58,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:16:58,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:16:58,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:16:58,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:16:58,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:16:58,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:16:58,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:16:58,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:16:58,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:16:58,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:16:58,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:16:58,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:16:58,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:16:58,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:16:58,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:16:58,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:16:58,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:16:58,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:16:58,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:16:58,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:16:58,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:16:58,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:16:58,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:16:58,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:16:58,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:16:58,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:16:58,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:16:58,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:16:58,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:16:58,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:16:58,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:16:58,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:16:58,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:16:58,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:16:58,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:16:58,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:16:58,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:16:58,877 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b26507b5-0aba-48d5-a93b-320d665a1743/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 20:16:58,936 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:16:58,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:16:58,937 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:16:58,937 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:16:58,939 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:16:58,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:16:58,940 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:16:58,940 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:16:58,941 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:16:58,941 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:16:58,942 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:16:58,943 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:16:58,943 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:16:58,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:16:58,944 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:16:58,944 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:16:58,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:16:58,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:16:58,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:16:58,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:16:58,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:16:58,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:16:58,946 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:16:58,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:16:58,947 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:16:58,947 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:16:58,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:16:58,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:16:58,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:16:58,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:16:58,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:16:58,951 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:16:58,952 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:16:58,953 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_b26507b5-0aba-48d5-a93b-320d665a1743/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b26507b5-0aba-48d5-a93b-320d665a1743/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f2870beb38cc74f17a96c393839e7d6d2f1f4f9c95ce97be38a991d6b510bc3 [2021-10-21 20:16:59,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:16:59,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:16:59,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:16:59,337 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:16:59,339 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:16:59,340 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b26507b5-0aba-48d5-a93b-320d665a1743/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c [2021-10-21 20:16:59,465 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b26507b5-0aba-48d5-a93b-320d665a1743/bin/uautomizer-j4sWxH34Be/data/7df537b06/9bd556ca35fb498cabb1bc4d12c64830/FLAGc6e31279f [2021-10-21 20:17:00,117 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:17:00,118 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b26507b5-0aba-48d5-a93b-320d665a1743/sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c [2021-10-21 20:17:00,138 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b26507b5-0aba-48d5-a93b-320d665a1743/bin/uautomizer-j4sWxH34Be/data/7df537b06/9bd556ca35fb498cabb1bc4d12c64830/FLAGc6e31279f [2021-10-21 20:17:00,340 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b26507b5-0aba-48d5-a93b-320d665a1743/bin/uautomizer-j4sWxH34Be/data/7df537b06/9bd556ca35fb498cabb1bc4d12c64830 [2021-10-21 20:17:00,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:17:00,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:17:00,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:17:00,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:17:00,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:17:00,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:17:00" (1/1) ... [2021-10-21 20:17:00,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3764ae32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:00, skipping insertion in model container [2021-10-21 20:17:00,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:17:00" (1/1) ... [2021-10-21 20:17:00,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:17:00,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:17:00,753 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_b26507b5-0aba-48d5-a93b-320d665a1743/sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c[18514,18527] [2021-10-21 20:17:00,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:17:00,772 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:17:00,911 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_b26507b5-0aba-48d5-a93b-320d665a1743/sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c[18514,18527] [2021-10-21 20:17:00,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:17:00,934 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:17:00,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:00 WrapperNode [2021-10-21 20:17:00,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:17:00,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:17:00,937 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:17:00,937 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:17:00,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:00" (1/1) ... [2021-10-21 20:17:00,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:00" (1/1) ... [2021-10-21 20:17:01,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:17:01,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:17:01,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:17:01,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:17:01,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:00" (1/1) ... [2021-10-21 20:17:01,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:00" (1/1) ... [2021-10-21 20:17:01,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:00" (1/1) ... [2021-10-21 20:17:01,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:00" (1/1) ... [2021-10-21 20:17:01,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:00" (1/1) ... [2021-10-21 20:17:01,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:00" (1/1) ... [2021-10-21 20:17:01,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:00" (1/1) ... [2021-10-21 20:17:01,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:17:01,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:17:01,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:17:01,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:17:01,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:00" (1/1) ... [2021-10-21 20:17:01,161 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:01,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b26507b5-0aba-48d5-a93b-320d665a1743/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:01,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b26507b5-0aba-48d5-a93b-320d665a1743/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:01,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b26507b5-0aba-48d5-a93b-320d665a1743/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:17:01,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:17:01,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:17:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:17:01,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:17:02,549 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:17:02,550 INFO L299 CfgBuilder]: Removed 172 assume(true) statements. [2021-10-21 20:17:02,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:17:02 BoogieIcfgContainer [2021-10-21 20:17:02,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:17:02,556 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:17:02,557 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:17:02,562 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:17:02,563 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:17:02,563 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:17:00" (1/3) ... [2021-10-21 20:17:02,565 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3a5d5c7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:17:02, skipping insertion in model container [2021-10-21 20:17:02,565 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:17:02,565 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:00" (2/3) ... [2021-10-21 20:17:02,565 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3a5d5c7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:17:02, skipping insertion in model container [2021-10-21 20:17:02,565 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:17:02,566 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:17:02" (3/3) ... [2021-10-21 20:17:02,567 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product22.cil.c [2021-10-21 20:17:02,629 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:17:02,629 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:17:02,629 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:17:02,629 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:17:02,630 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:17:02,630 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:17:02,630 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:17:02,630 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:17:02,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 111 states, 110 states have (on average 1.5) internal successors, (165), 110 states have internal predecessors, (165), 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 20:17:02,712 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-10-21 20:17:02,712 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:17:02,712 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:17:02,723 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:17:02,723 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:17:02,724 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:17:02,725 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 111 states, 110 states have (on average 1.5) internal successors, (165), 110 states have internal predecessors, (165), 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 20:17:02,745 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-10-21 20:17:02,746 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:17:02,746 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:17:02,747 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:17:02,748 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:17:02,760 INFO L791 eck$LassoCheckResult]: Stem: 108#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 39#L-1true havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~5, main_~tmp~5;havoc main_~retValue_acc~5;havoc main_~tmp~5; 51#L75true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 31#L83true main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 21#L493true assume 0 != main_~tmp~5; 19#L469true ~switchedOnBeforeTS~0 := 0; 36#L297true havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 58#L318-1true [2021-10-21 20:17:02,762 INFO L793 eck$LassoCheckResult]: Loop: 58#L318-1true assume !false; 47#L354true assume test_~splverifierCounter~0 < 4; 37#L355true test_~tmp~4 := test_#t~nondet31;havoc test_#t~nondet31; 113#L363true assume !(0 != test_~tmp~4); 43#L363-1true test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 107#L373true assume !(0 != test_~tmp___0~2); 25#L373-1true test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 44#L383true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 6#L391-2true havoc __utac_acc__Specification5_spec__2_#t~ret28;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 76#L221true __utac_acc__Specification5_spec__2_#t~ret28 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28;havoc __utac_acc__Specification5_spec__2_#t~ret28; 72#L307true assume !(0 != ~pumpRunning~0); 63#L110true assume !(0 != ~systemActive~0); 13#L117true havoc __utac_acc__Specification5_spec__3_#t~ret29, __utac_acc__Specification5_spec__3_#t~ret30, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 9#L948true __utac_acc__Specification5_spec__3_#t~ret29 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret29;havoc __utac_acc__Specification5_spec__3_#t~ret29; 110#L318true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 58#L318-1true [2021-10-21 20:17:02,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:02,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-21 20:17:02,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:17:02,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365790166] [2021-10-21 20:17:02,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:17:02,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:17:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:03,123 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:17:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:03,373 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:17:03,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:03,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1012669325, now seen corresponding path program 1 times [2021-10-21 20:17:03,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:17:03,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161175022] [2021-10-21 20:17:03,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:17:03,379 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:17:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:17:03,462 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 20:17:03,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:17:03,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161175022] [2021-10-21 20:17:03,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161175022] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:17:03,465 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:17:03,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:17:03,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034997831] [2021-10-21 20:17:03,471 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:17:03,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:17:03,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:17:03,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:17:03,494 INFO L87 Difference]: Start difference. First operand has 111 states, 110 states have (on average 1.5) internal successors, (165), 110 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 20:17:03,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:17:03,540 INFO L93 Difference]: Finished difference Result 111 states and 155 transitions. [2021-10-21 20:17:03,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:17:03,543 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 155 transitions. [2021-10-21 20:17:03,547 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-10-21 20:17:03,553 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 104 states and 147 transitions. [2021-10-21 20:17:03,554 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2021-10-21 20:17:03,555 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2021-10-21 20:17:03,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 147 transitions. [2021-10-21 20:17:03,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:17:03,558 INFO L681 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2021-10-21 20:17:03,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 147 transitions. [2021-10-21 20:17:03,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-10-21 20:17:03,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 104 states have (on average 1.4134615384615385) internal successors, (147), 103 states have internal predecessors, (147), 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 20:17:03,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 147 transitions. [2021-10-21 20:17:03,599 INFO L704 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2021-10-21 20:17:03,600 INFO L587 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2021-10-21 20:17:03,600 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:17:03,600 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 147 transitions. [2021-10-21 20:17:03,602 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-10-21 20:17:03,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:17:03,602 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:17:03,603 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:17:03,604 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:17:03,604 INFO L791 eck$LassoCheckResult]: Stem: 334#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 289#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~5, main_~tmp~5;havoc main_~retValue_acc~5;havoc main_~tmp~5; 290#L75 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 279#L83 main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 261#L493 assume 0 != main_~tmp~5; 257#L469 ~switchedOnBeforeTS~0 := 0; 258#L297 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 238#L318-1 [2021-10-21 20:17:03,604 INFO L793 eck$LassoCheckResult]: Loop: 238#L318-1 assume !false; 299#L354 assume test_~splverifierCounter~0 < 4; 286#L355 test_~tmp~4 := test_#t~nondet31;havoc test_#t~nondet31; 287#L363 assume !(0 != test_~tmp~4); 292#L363-1 test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 293#L373 assume !(0 != test_~tmp___0~2); 269#L373-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 270#L383 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 233#L391-2 havoc __utac_acc__Specification5_spec__2_#t~ret28;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 234#L221 __utac_acc__Specification5_spec__2_#t~ret28 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28;havoc __utac_acc__Specification5_spec__2_#t~ret28; 321#L307 assume !(0 != ~pumpRunning~0); 312#L110 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 243#L168 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret8, processEnvironment__wrappee__lowWaterSensor_~tmp~0;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0; 244#L142-1 assume !(0 != ~pumpRunning~0); 246#L117 havoc __utac_acc__Specification5_spec__3_#t~ret29, __utac_acc__Specification5_spec__3_#t~ret30, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 239#L948 __utac_acc__Specification5_spec__3_#t~ret29 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret29;havoc __utac_acc__Specification5_spec__3_#t~ret29; 240#L318 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 238#L318-1 [2021-10-21 20:17:03,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:03,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-21 20:17:03,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:17:03,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288020751] [2021-10-21 20:17:03,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:17:03,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:17:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:03,675 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:17:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:03,756 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:17:03,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:03,757 INFO L82 PathProgramCache]: Analyzing trace with hash 363233727, now seen corresponding path program 1 times [2021-10-21 20:17:03,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:17:03,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033921018] [2021-10-21 20:17:03,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:17:03,759 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:17:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:03,766 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:17:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:03,777 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:17:03,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:03,779 INFO L82 PathProgramCache]: Analyzing trace with hash -759378631, now seen corresponding path program 1 times [2021-10-21 20:17:03,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:17:03,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056433840] [2021-10-21 20:17:03,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:17:03,780 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:17:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:17:03,861 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 20:17:03,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:17:03,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056433840] [2021-10-21 20:17:03,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056433840] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:17:03,863 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:17:03,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:17:03,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690740409] [2021-10-21 20:17:04,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:17:04,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:17:04,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:17:04,127 INFO L87 Difference]: Start difference. First operand 104 states and 147 transitions. cyclomatic complexity: 45 Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 20:17:04,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:17:04,366 INFO L93 Difference]: Finished difference Result 320 states and 453 transitions. [2021-10-21 20:17:04,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:17:04,368 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 320 states and 453 transitions. [2021-10-21 20:17:04,376 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 135 [2021-10-21 20:17:04,386 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 320 states to 320 states and 453 transitions. [2021-10-21 20:17:04,387 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 320 [2021-10-21 20:17:04,390 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 320 [2021-10-21 20:17:04,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 320 states and 453 transitions. [2021-10-21 20:17:04,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:17:04,400 INFO L681 BuchiCegarLoop]: Abstraction has 320 states and 453 transitions. [2021-10-21 20:17:04,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states and 453 transitions. [2021-10-21 20:17:04,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 201. [2021-10-21 20:17:04,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 201 states have (on average 1.3930348258706469) internal successors, (280), 200 states have internal predecessors, (280), 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 20:17:04,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 280 transitions. [2021-10-21 20:17:04,439 INFO L704 BuchiCegarLoop]: Abstraction has 201 states and 280 transitions. [2021-10-21 20:17:04,439 INFO L587 BuchiCegarLoop]: Abstraction has 201 states and 280 transitions. [2021-10-21 20:17:04,440 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 20:17:04,440 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 280 transitions. [2021-10-21 20:17:04,442 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 135 [2021-10-21 20:17:04,443 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:17:04,443 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:17:04,444 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:17:04,445 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:17:04,445 INFO L791 eck$LassoCheckResult]: Stem: 803#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 732#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~5, main_~tmp~5;havoc main_~retValue_acc~5;havoc main_~tmp~5; 733#L75 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 722#L83 main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 702#L493 assume 0 != main_~tmp~5; 698#L469 ~switchedOnBeforeTS~0 := 0; 699#L297 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 678#L318-1 [2021-10-21 20:17:04,446 INFO L793 eck$LassoCheckResult]: Loop: 678#L318-1 assume !false; 743#L354 assume test_~splverifierCounter~0 < 4; 729#L355 test_~tmp~4 := test_#t~nondet31;havoc test_#t~nondet31; 730#L363 assume !(0 != test_~tmp~4); 736#L363-1 test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 737#L373 assume !(0 != test_~tmp___0~2); 710#L373-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 711#L383 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 673#L391-2 havoc __utac_acc__Specification5_spec__2_#t~ret28;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 674#L221 __utac_acc__Specification5_spec__2_#t~ret28 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28;havoc __utac_acc__Specification5_spec__2_#t~ret28; 772#L307 assume !(0 != ~pumpRunning~0); 773#L110 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 855#L168 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret8, processEnvironment__wrappee__lowWaterSensor_~tmp~0;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0; 850#L142-1 assume !(0 != ~pumpRunning~0); 686#L117 havoc __utac_acc__Specification5_spec__3_#t~ret29, __utac_acc__Specification5_spec__3_#t~ret30, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 681#L948 __utac_acc__Specification5_spec__3_#t~ret29 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret29;havoc __utac_acc__Specification5_spec__3_#t~ret29; 682#L318 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 805#L221-1 __utac_acc__Specification5_spec__3_#t~ret30 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~1 := __utac_acc__Specification5_spec__3_#t~ret30;havoc __utac_acc__Specification5_spec__3_#t~ret30; 781#L322 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1); 678#L318-1 [2021-10-21 20:17:04,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:04,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-21 20:17:04,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:17:04,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269452413] [2021-10-21 20:17:04,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:17:04,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:17:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:04,505 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:17:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:04,600 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:17:04,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:04,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1175247994, now seen corresponding path program 1 times [2021-10-21 20:17:04,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:17:04,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795634043] [2021-10-21 20:17:04,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:17:04,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:17:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:04,618 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:17:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:04,628 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:17:04,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:04,629 INFO L82 PathProgramCache]: Analyzing trace with hash 381563252, now seen corresponding path program 1 times [2021-10-21 20:17:04,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:17:04,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140397588] [2021-10-21 20:17:04,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:17:04,631 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:17:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:04,666 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:17:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:04,772 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:18:19,275 WARN L207 SmtUtils]: Spent 1.24 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-21 20:19:30,157 WARN L207 SmtUtils]: Spent 33.43 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-21 20:19:30,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:19:30 BoogieIcfgContainer [2021-10-21 20:19:30,279 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:19:30,279 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:19:30,279 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:19:30,280 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:19:30,280 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:17:02" (3/4) ... [2021-10-21 20:19:30,283 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 20:19:30,328 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b26507b5-0aba-48d5-a93b-320d665a1743/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:19:30,329 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:19:30,330 INFO L168 Benchmark]: Toolchain (without parser) took 149985.19 ms. Allocated memory was 94.4 MB in the beginning and 159.4 MB in the end (delta: 65.0 MB). Free memory was 59.4 MB in the beginning and 78.4 MB in the end (delta: -19.1 MB). Peak memory consumption was 44.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:19:30,331 INFO L168 Benchmark]: CDTParser took 1.24 ms. Allocated memory is still 94.4 MB. Free memory was 63.7 MB in the beginning and 63.7 MB in the end (delta: 26.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:19:30,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 580.60 ms. Allocated memory is still 94.4 MB. Free memory was 59.2 MB in the beginning and 63.6 MB in the end (delta: -4.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:19:30,332 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.91 ms. Allocated memory is still 94.4 MB. Free memory was 63.6 MB in the beginning and 59.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:19:30,333 INFO L168 Benchmark]: Boogie Preprocessor took 110.25 ms. Allocated memory is still 94.4 MB. Free memory was 59.9 MB in the beginning and 57.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:19:30,333 INFO L168 Benchmark]: RCFGBuilder took 1410.03 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 57.4 MB in the beginning and 71.3 MB in the end (delta: -14.0 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. [2021-10-21 20:19:30,334 INFO L168 Benchmark]: BuchiAutomizer took 147722.50 ms. Allocated memory was 113.2 MB in the beginning and 159.4 MB in the end (delta: 46.1 MB). Free memory was 71.3 MB in the beginning and 80.5 MB in the end (delta: -9.2 MB). Peak memory consumption was 78.9 MB. Max. memory is 16.1 GB. [2021-10-21 20:19:30,335 INFO L168 Benchmark]: Witness Printer took 49.70 ms. Allocated memory is still 159.4 MB. Free memory was 80.5 MB in the beginning and 78.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:19:30,338 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.24 ms. Allocated memory is still 94.4 MB. Free memory was 63.7 MB in the beginning and 63.7 MB in the end (delta: 26.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 580.60 ms. Allocated memory is still 94.4 MB. Free memory was 59.2 MB in the beginning and 63.6 MB in the end (delta: -4.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.91 ms. Allocated memory is still 94.4 MB. Free memory was 63.6 MB in the beginning and 59.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 110.25 ms. Allocated memory is still 94.4 MB. Free memory was 59.9 MB in the beginning and 57.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1410.03 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 57.4 MB in the beginning and 71.3 MB in the end (delta: -14.0 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 147722.50 ms. Allocated memory was 113.2 MB in the beginning and 159.4 MB in the end (delta: 46.1 MB). Free memory was 71.3 MB in the beginning and 80.5 MB in the end (delta: -9.2 MB). Peak memory consumption was 78.9 MB. Max. memory is 16.1 GB. * Witness Printer took 49.70 ms. Allocated memory is still 159.4 MB. Free memory was 80.5 MB in the beginning and 78.4 MB in the end (delta: 2.1 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 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 5 locations. The remainder module has 201 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 147.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 147.0s. Construction of modules took 0.1s. 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 62.3ms AutomataMinimizationTime, 2 MinimizatonAttempts, 119 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 201 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 393 SDtfs, 695 SDslu, 468 SDs, 0 SdLazy, 100 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 128.8ms Time 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 - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 353]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=22731} State at position 1 is {NULL=0, NULL=0, NULL=22750, NULL=0, retValue_acc=1, NULL=22731, retValue_acc=0, NULL=22745, NULL=22746, tmp=0, NULL=22755, NULL=22752, methaneLevelCritical=0, NULL=22738, NULL=0, tmp=1, NULL=0, tmp=0, NULL=22742, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@405ee160=0, NULL=22753, NULL=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2259759=0, NULL=0, NULL=0, NULL=22735, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=22733, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3777975d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a045a87=83, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=22758, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b23b99c=0, NULL=22736, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=22737, \result=1, NULL=22734, head=0, pumpRunning=0, NULL=22757, \result=0, tmp___0=0, NULL=22743, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@663ac626=0, NULL=22748, NULL=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fff8a10=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2202636f=0, NULL=0, NULL=22747, NULL=22751, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c390c4d=0, NULL=0, NULL=22740, NULL=0, retValue_acc=1, tmp___2=83, tmp___0=0, NULL=22759, splverifierCounter=0, NULL=0, NULL=0, NULL=22739, NULL=22744, NULL=22749, tmp=0, head=0, NULL=0, NULL=22741, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77a96202=0, NULL=0, NULL=22732, NULL=0, NULL=22756, NULL=22754, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L98] int pumpRunning = 0; [L99] int systemActive = 1; [L291] int switchedOnBeforeTS ; [L410] int cleanupTimeShifts = 4; [L676] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L873] int waterLevel = 1; [L874] int methaneLevelCritical = 0; [L484] int retValue_acc ; [L485] int tmp ; [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L491] tmp = valid_product() [L493] COND TRUE \read(tmp) [L296] switchedOnBeforeTS = 0 [L344] int splverifierCounter ; [L345] int tmp ; [L346] int tmp___0 ; [L347] int tmp___1 ; [L348] int tmp___2 ; [L351] splverifierCounter = 0 Loop: [L353] COND TRUE 1 [L355] COND TRUE splverifierCounter < 4 [L361] tmp = __VERIFIER_nondet_int() [L363] COND FALSE !(\read(tmp)) [L371] tmp___0 = __VERIFIER_nondet_int() [L373] COND FALSE !(\read(tmp___0)) [L381] tmp___2 = __VERIFIER_nondet_int() [L383] COND TRUE \read(tmp___2) [L284] systemActive = 1 [L217] int retValue_acc ; [L220] retValue_acc = pumpRunning [L221] return (retValue_acc); [L305] switchedOnBeforeTS = isPumpRunning() [L110] COND FALSE !(\read(pumpRunning)) [L117] COND TRUE \read(systemActive) [L165] int tmp ; [L168] COND FALSE !(\read(pumpRunning)) [L139] int tmp ; [L142] COND FALSE !(\read(pumpRunning)) [L311] int tmp ; [L312] int tmp___0 ; [L944] int retValue_acc ; [L947] retValue_acc = waterLevel [L948] return (retValue_acc); [L316] tmp = getWaterLevel() [L318] COND TRUE tmp != 2 [L217] int retValue_acc ; [L220] retValue_acc = pumpRunning [L221] return (retValue_acc); [L320] tmp___0 = isPumpRunning() [L322] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 20:19:30,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b26507b5-0aba-48d5-a93b-320d665a1743/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...