./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product49.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_a77d04fd-e427-45ab-ac34-315d81944959/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77d04fd-e427-45ab-ac34-315d81944959/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_a77d04fd-e427-45ab-ac34-315d81944959/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77d04fd-e427-45ab-ac34-315d81944959/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77d04fd-e427-45ab-ac34-315d81944959/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_a77d04fd-e427-45ab-ac34-315d81944959/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 8ebbbe9395fd7f6497497f0e6f84282075bb296e20acc9821d0fb2d7075b331d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:04:10,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:04:10,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:04:10,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:04:10,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:04:10,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:04:10,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:04:10,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:04:10,092 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:04:10,093 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:04:10,094 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:04:10,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:04:10,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:04:10,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:04:10,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:04:10,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:04:10,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:04:10,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:04:10,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:04:10,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:04:10,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:04:10,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:04:10,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:04:10,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:04:10,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:04:10,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:04:10,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:04:10,154 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:04:10,155 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:04:10,157 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:04:10,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:04:10,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:04:10,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:04:10,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:04:10,163 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:04:10,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:04:10,164 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:04:10,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:04:10,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:04:10,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:04:10,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:04:10,167 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77d04fd-e427-45ab-ac34-315d81944959/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:04:10,194 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:04:10,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:04:10,194 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:04:10,195 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:04:10,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:04:10,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:04:10,196 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:04:10,196 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:04:10,197 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:04:10,197 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:04:10,197 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:04:10,197 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:04:10,198 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:04:10,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:04:10,198 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:04:10,198 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:04:10,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:04:10,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:04:10,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:04:10,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:04:10,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:04:10,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:04:10,200 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:04:10,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:04:10,200 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:04:10,200 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:04:10,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:04:10,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:04:10,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:04:10,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:04:10,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:04:10,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:04:10,203 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:04:10,203 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_a77d04fd-e427-45ab-ac34-315d81944959/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77d04fd-e427-45ab-ac34-315d81944959/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ebbbe9395fd7f6497497f0e6f84282075bb296e20acc9821d0fb2d7075b331d [2021-10-21 19:04:10,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:04:10,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:04:10,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:04:10,482 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:04:10,483 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:04:10,484 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77d04fd-e427-45ab-ac34-315d81944959/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c [2021-10-21 19:04:10,568 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77d04fd-e427-45ab-ac34-315d81944959/bin/uautomizer-j4sWxH34Be/data/6b77f5f31/5fb792a042f748febba1663e8e889d50/FLAG29817b9e8 [2021-10-21 19:04:11,063 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:04:11,064 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77d04fd-e427-45ab-ac34-315d81944959/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c [2021-10-21 19:04:11,075 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77d04fd-e427-45ab-ac34-315d81944959/bin/uautomizer-j4sWxH34Be/data/6b77f5f31/5fb792a042f748febba1663e8e889d50/FLAG29817b9e8 [2021-10-21 19:04:11,387 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77d04fd-e427-45ab-ac34-315d81944959/bin/uautomizer-j4sWxH34Be/data/6b77f5f31/5fb792a042f748febba1663e8e889d50 [2021-10-21 19:04:11,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:04:11,391 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:04:11,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:04:11,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:04:11,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:04:11,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:04:11" (1/1) ... [2021-10-21 19:04:11,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74cf4432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:11, skipping insertion in model container [2021-10-21 19:04:11,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:04:11" (1/1) ... [2021-10-21 19:04:11,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:04:11,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:04:11,731 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_a77d04fd-e427-45ab-ac34-315d81944959/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c[18359,18372] [2021-10-21 19:04:11,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:04:11,744 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:04:11,813 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_a77d04fd-e427-45ab-ac34-315d81944959/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c[18359,18372] [2021-10-21 19:04:11,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:04:11,834 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:04:11,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:11 WrapperNode [2021-10-21 19:04:11,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:04:11,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:04:11,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:04:11,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:04:11,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:11" (1/1) ... [2021-10-21 19:04:11,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:11" (1/1) ... [2021-10-21 19:04:11,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:04:11,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:04:11,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:04:11,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:04:11,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:11" (1/1) ... [2021-10-21 19:04:11,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:11" (1/1) ... [2021-10-21 19:04:11,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:11" (1/1) ... [2021-10-21 19:04:11,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:11" (1/1) ... [2021-10-21 19:04:11,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:11" (1/1) ... [2021-10-21 19:04:11,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:11" (1/1) ... [2021-10-21 19:04:11,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:11" (1/1) ... [2021-10-21 19:04:11,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:04:11,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:04:11,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:04:11,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:04:11,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:11" (1/1) ... [2021-10-21 19:04:11,958 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:04:11,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77d04fd-e427-45ab-ac34-315d81944959/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:04:11,983 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77d04fd-e427-45ab-ac34-315d81944959/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:04:11,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77d04fd-e427-45ab-ac34-315d81944959/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:04:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:04:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:04:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:04:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:04:13,041 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:04:13,041 INFO L299 CfgBuilder]: Removed 158 assume(true) statements. [2021-10-21 19:04:13,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:04:13 BoogieIcfgContainer [2021-10-21 19:04:13,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:04:13,046 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:04:13,046 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:04:13,051 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:04:13,052 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:04:13,053 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:04:11" (1/3) ... [2021-10-21 19:04:13,055 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17d1da4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:04:13, skipping insertion in model container [2021-10-21 19:04:13,055 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:04:13,055 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:11" (2/3) ... [2021-10-21 19:04:13,056 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17d1da4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:04:13, skipping insertion in model container [2021-10-21 19:04:13,056 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:04:13,057 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:04:13" (3/3) ... [2021-10-21 19:04:13,058 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product49.cil.c [2021-10-21 19:04:13,108 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:04:13,109 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:04:13,109 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:04:13,109 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:04:13,109 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:04:13,109 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:04:13,109 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:04:13,109 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:04:13,133 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 118 states, 117 states have (on average 1.547008547008547) internal successors, (181), 117 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:13,175 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2021-10-21 19:04:13,176 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:04:13,176 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:04:13,189 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:04:13,190 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:04:13,190 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:04:13,191 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 118 states, 117 states have (on average 1.547008547008547) internal successors, (181), 117 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:13,207 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2021-10-21 19:04:13,208 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:04:13,208 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:04:13,209 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:04:13,210 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:04:13,221 INFO L791 eck$LassoCheckResult]: Stem: 113#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(80, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(117, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(109, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(112, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(110, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 3 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(32, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);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(21);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(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 38#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 59#L967true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 110#L975true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 97#L142true assume 0 != main_~tmp~0; 111#L113true ~methAndRunningLastTime~0 := 0; 60#L273true havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 48#L284-1true [2021-10-21 19:04:13,222 INFO L793 eck$LassoCheckResult]: Loop: 48#L284-1true assume !false; 7#L317true assume test_~splverifierCounter~0 < 4; 117#L318true test_~tmp~2 := test_#t~nondet20;havoc test_#t~nondet20; 28#L326true assume !(0 != test_~tmp~2); 21#L326-1true test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 76#L336true assume !(0 != test_~tmp___0~1); 9#L336-1true test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 47#L346true assume 0 != test_~tmp___2~0; 26#L352-2true assume !(0 != ~pumpRunning~0); 66#L380true assume !(0 != ~systemActive~0); 51#L387true havoc __utac_acc__Specification2_spec__2_#t~ret18, __utac_acc__Specification2_spec__2_#t~ret19, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 73#L205true __utac_acc__Specification2_spec__2_#t~ret18 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret18;havoc __utac_acc__Specification2_spec__2_#t~ret18; 62#L284true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 48#L284-1true [2021-10-21 19:04:13,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:13,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-21 19:04:13,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:13,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573572163] [2021-10-21 19:04:13,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:13,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:13,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:04:13,546 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:04:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:04:13,755 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:04:13,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:13,767 INFO L82 PathProgramCache]: Analyzing trace with hash 4507850, now seen corresponding path program 1 times [2021-10-21 19:04:13,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:13,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120621100] [2021-10-21 19:04:13,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:13,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:04:13,780 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:04:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:04:13,800 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:04:13,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:13,803 INFO L82 PathProgramCache]: Analyzing trace with hash 837804356, now seen corresponding path program 1 times [2021-10-21 19:04:13,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:13,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633343486] [2021-10-21 19:04:13,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:13,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:13,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:13,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:13,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:04:13,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633343486] [2021-10-21 19:04:13,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633343486] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:04:13,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:04:13,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:04:13,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085484926] [2021-10-21 19:04:14,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:04:14,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:04:14,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:04:14,151 INFO L87 Difference]: Start difference. First operand has 118 states, 117 states have (on average 1.547008547008547) internal successors, (181), 117 states have internal predecessors, (181), 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 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:14,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:04:14,402 INFO L93 Difference]: Finished difference Result 118 states and 170 transitions. [2021-10-21 19:04:14,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:04:14,405 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 118 states and 170 transitions. [2021-10-21 19:04:14,408 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2021-10-21 19:04:14,413 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 118 states to 111 states and 163 transitions. [2021-10-21 19:04:14,415 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 111 [2021-10-21 19:04:14,415 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 111 [2021-10-21 19:04:14,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 111 states and 163 transitions. [2021-10-21 19:04:14,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:04:14,417 INFO L681 BuchiCegarLoop]: Abstraction has 111 states and 163 transitions. [2021-10-21 19:04:14,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states and 163 transitions. [2021-10-21 19:04:14,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-10-21 19:04:14,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 111 states have (on average 1.4684684684684686) internal successors, (163), 110 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:14,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 163 transitions. [2021-10-21 19:04:14,479 INFO L704 BuchiCegarLoop]: Abstraction has 111 states and 163 transitions. [2021-10-21 19:04:14,479 INFO L587 BuchiCegarLoop]: Abstraction has 111 states and 163 transitions. [2021-10-21 19:04:14,479 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:04:14,479 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states and 163 transitions. [2021-10-21 19:04:14,481 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2021-10-21 19:04:14,481 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:04:14,482 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:04:14,482 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:04:14,483 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:04:14,483 INFO L791 eck$LassoCheckResult]: Stem: 364#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(80, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(117, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(109, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(112, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(110, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 3 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(32, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);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(21);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(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 313#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 314#L967 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 334#L975 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 357#L142 assume 0 != main_~tmp~0; 358#L113 ~methAndRunningLastTime~0 := 0; 335#L273 havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 297#L284-1 [2021-10-21 19:04:14,483 INFO L793 eck$LassoCheckResult]: Loop: 297#L284-1 assume !false; 260#L317 assume test_~splverifierCounter~0 < 4; 261#L318 test_~tmp~2 := test_#t~nondet20;havoc test_#t~nondet20; 299#L326 assume !(0 != test_~tmp~2); 255#L326-1 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 288#L336 assume !(0 != test_~tmp___0~1); 265#L336-1 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 266#L346 assume 0 != test_~tmp___2~0; 296#L352-2 assume !(0 != ~pumpRunning~0); 264#L380 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret25, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 339#L438 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret24, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 351#L412-1 assume !(0 == ~pumpRunning~0); 282#L387 havoc __utac_acc__Specification2_spec__2_#t~ret18, __utac_acc__Specification2_spec__2_#t~ret19, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 325#L205 __utac_acc__Specification2_spec__2_#t~ret18 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret18;havoc __utac_acc__Specification2_spec__2_#t~ret18; 337#L284 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 297#L284-1 [2021-10-21 19:04:14,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:14,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-21 19:04:14,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:14,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062246161] [2021-10-21 19:04:14,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:14,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:04:14,549 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:04:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:04:14,617 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:04:14,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:14,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1691352360, now seen corresponding path program 1 times [2021-10-21 19:04:14,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:14,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411150561] [2021-10-21 19:04:14,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:14,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:14,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:14,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:14,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:04:14,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411150561] [2021-10-21 19:04:14,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411150561] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:04:14,651 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:04:14,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:04:14,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738625382] [2021-10-21 19:04:14,652 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:04:14,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:04:14,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:04:14,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:04:14,655 INFO L87 Difference]: Start difference. First operand 111 states and 163 transitions. cyclomatic complexity: 54 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 19:04:14,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:04:14,739 INFO L93 Difference]: Finished difference Result 155 states and 217 transitions. [2021-10-21 19:04:14,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:04:14,740 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 155 states and 217 transitions. [2021-10-21 19:04:14,743 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2021-10-21 19:04:14,745 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 155 states to 155 states and 217 transitions. [2021-10-21 19:04:14,746 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 155 [2021-10-21 19:04:14,747 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 155 [2021-10-21 19:04:14,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 155 states and 217 transitions. [2021-10-21 19:04:14,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:04:14,749 INFO L681 BuchiCegarLoop]: Abstraction has 155 states and 217 transitions. [2021-10-21 19:04:14,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states and 217 transitions. [2021-10-21 19:04:14,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2021-10-21 19:04:14,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 155 states have (on average 1.4) internal successors, (217), 154 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:14,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 217 transitions. [2021-10-21 19:04:14,762 INFO L704 BuchiCegarLoop]: Abstraction has 155 states and 217 transitions. [2021-10-21 19:04:14,762 INFO L587 BuchiCegarLoop]: Abstraction has 155 states and 217 transitions. [2021-10-21 19:04:14,762 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:04:14,763 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 155 states and 217 transitions. [2021-10-21 19:04:14,765 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2021-10-21 19:04:14,765 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:04:14,765 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:04:14,766 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:04:14,766 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, 1, 1] [2021-10-21 19:04:14,766 INFO L791 eck$LassoCheckResult]: Stem: 642#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(80, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(117, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(109, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(112, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(110, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 3 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(32, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);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(21);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(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 587#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 588#L967 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 607#L975 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 635#L142 assume 0 != main_~tmp~0; 636#L113 ~methAndRunningLastTime~0 := 0; 608#L273 havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 571#L284-1 [2021-10-21 19:04:14,767 INFO L793 eck$LassoCheckResult]: Loop: 571#L284-1 assume !false; 532#L317 assume test_~splverifierCounter~0 < 4; 533#L318 test_~tmp~2 := test_#t~nondet20;havoc test_#t~nondet20; 575#L326 assume !(0 != test_~tmp~2); 527#L326-1 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 561#L336 assume !(0 != test_~tmp___0~1); 537#L336-1 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 538#L346 assume 0 != test_~tmp___2~0; 569#L352-2 assume !(0 != ~pumpRunning~0); 570#L380 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret25, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 614#L438 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret24, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 629#L412-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret43, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; 576#L245-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; 577#L250-1 isHighWaterLevel_#t~ret43 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret43;havoc isHighWaterLevel_#t~ret43; 633#L540-3 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~2 := 0; 638#L540-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 621#L546-1 processEnvironment__wrappee__highWaterSensor_#t~ret24 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret24;havoc processEnvironment__wrappee__highWaterSensor_#t~ret24; 553#L416-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 555#L387 havoc __utac_acc__Specification2_spec__2_#t~ret18, __utac_acc__Specification2_spec__2_#t~ret19, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 599#L205 __utac_acc__Specification2_spec__2_#t~ret18 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret18;havoc __utac_acc__Specification2_spec__2_#t~ret18; 610#L284 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 571#L284-1 [2021-10-21 19:04:14,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:14,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-21 19:04:14,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:14,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578006367] [2021-10-21 19:04:14,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:14,769 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:04:14,811 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:04:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:04:14,900 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:04:14,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:14,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1940252844, now seen corresponding path program 1 times [2021-10-21 19:04:14,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:14,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847684923] [2021-10-21 19:04:14,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:14,902 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:14,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:04:14,911 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:04:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:04:14,921 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:04:14,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:14,922 INFO L82 PathProgramCache]: Analyzing trace with hash -167111218, now seen corresponding path program 1 times [2021-10-21 19:04:14,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:14,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598143873] [2021-10-21 19:04:14,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:14,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:14,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:04:14,976 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:04:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:04:15,048 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:05:08,722 WARN L207 SmtUtils]: Spent 53.39 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-21 19:06:04,864 WARN L207 SmtUtils]: Spent 27.36 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-21 19:06:05,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:06:05 BoogieIcfgContainer [2021-10-21 19:06:05,054 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:06:05,055 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:06:05,055 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:06:05,055 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:06:05,056 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:04:13" (3/4) ... [2021-10-21 19:06:05,060 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:06:05,120 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77d04fd-e427-45ab-ac34-315d81944959/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:06:05,120 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:06:05,122 INFO L168 Benchmark]: Toolchain (without parser) took 113730.34 ms. Allocated memory was 107.0 MB in the beginning and 174.1 MB in the end (delta: 67.1 MB). Free memory was 67.2 MB in the beginning and 79.5 MB in the end (delta: -12.3 MB). Peak memory consumption was 54.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:05,122 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 107.0 MB. Free memory is still 85.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:06:05,123 INFO L168 Benchmark]: CACSL2BoogieTranslator took 440.92 ms. Allocated memory is still 107.0 MB. Free memory was 67.1 MB in the beginning and 73.8 MB in the end (delta: -6.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:05,123 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.46 ms. Allocated memory is still 107.0 MB. Free memory was 73.4 MB in the beginning and 70.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:05,123 INFO L168 Benchmark]: Boogie Preprocessor took 42.07 ms. Allocated memory is still 107.0 MB. Free memory was 70.1 MB in the beginning and 67.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:05,124 INFO L168 Benchmark]: RCFGBuilder took 1095.57 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 67.6 MB in the beginning and 96.4 MB in the end (delta: -28.8 MB). Peak memory consumption was 38.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:05,125 INFO L168 Benchmark]: BuchiAutomizer took 112008.62 ms. Allocated memory was 136.3 MB in the beginning and 174.1 MB in the end (delta: 37.7 MB). Free memory was 96.4 MB in the beginning and 81.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 96.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:05,125 INFO L168 Benchmark]: Witness Printer took 65.97 ms. Allocated memory is still 174.1 MB. Free memory was 81.6 MB in the beginning and 79.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:05,128 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 107.0 MB. Free memory is still 85.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 440.92 ms. Allocated memory is still 107.0 MB. Free memory was 67.1 MB in the beginning and 73.8 MB in the end (delta: -6.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.46 ms. Allocated memory is still 107.0 MB. Free memory was 73.4 MB in the beginning and 70.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.07 ms. Allocated memory is still 107.0 MB. Free memory was 70.1 MB in the beginning and 67.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1095.57 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 67.6 MB in the beginning and 96.4 MB in the end (delta: -28.8 MB). Peak memory consumption was 38.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 112008.62 ms. Allocated memory was 136.3 MB in the beginning and 174.1 MB in the end (delta: 37.7 MB). Free memory was 96.4 MB in the beginning and 81.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 96.1 MB. Max. memory is 16.1 GB. * Witness Printer took 65.97 ms. Allocated memory is still 174.1 MB. Free memory was 81.6 MB in the beginning and 79.5 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 6 locations. The remainder module has 155 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 111.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 111.3s. 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 34.9ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 155 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 321 SDtfs, 613 SDslu, 74 SDs, 0 SdLazy, 38 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 195.4ms 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: 316]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=24318} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=24318, NULL=0, NULL=24338, NULL=24331, NULL=24324, retValue_acc=1, methaneLevelCritical=0, tmp=0, NULL=0, NULL=24322, NULL=0, retValue_acc=0, tmp___1=0, NULL=0, NULL=24334, cleanupTimeShifts=4, NULL=24342, NULL=24329, waterLevel=1, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, tmp=1, NULL=24333, retValue_acc=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13d98df0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2821ffb4=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e9aa846=55, \result=1, NULL=0, NULL=0, NULL=24321, NULL=0, NULL=0, NULL=0, NULL=0, tmp=1, NULL=24343, tmp___0=0, methAndRunningLastTime=0, NULL=24337, NULL=24345, NULL=24326, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@646f0d4f=0, head=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4748092=0, NULL=0, NULL=24332, NULL=24340, NULL=24328, retValue_acc=0, retValue_acc=0, NULL=0, NULL=24335, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64d1cf87=0, NULL=24325, NULL=24336, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39ce3390=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f54d2fe=0, NULL=0, NULL=0, NULL=0, NULL=24330, tmp=0, NULL=24327, NULL=0, systemActive=1, NULL=0, \result=0, NULL=24341, \result=0, NULL=24320, NULL=0, NULL=0, tmp___0=0, NULL=24319, NULL=24346, tmp___2=55, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=24339, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c8dfb37=0, NULL=24344, NULL=0, NULL=0, NULL=24323, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@423e2c6=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L162] int waterLevel = 1; [L163] int methaneLevelCritical = 0; [L267] int methAndRunningLastTime ; [L373] int pumpRunning = 0; [L374] int systemActive = 1; [L739] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L133] int retValue_acc ; [L134] int tmp ; [L971] int retValue_acc ; [L974] retValue_acc = 1 [L975] return (retValue_acc); [L140] tmp = valid_product() [L142] COND TRUE \read(tmp) [L272] methAndRunningLastTime = 0 [L307] int splverifierCounter ; [L308] int tmp ; [L309] int tmp___0 ; [L310] int tmp___1 ; [L311] int tmp___2 ; [L314] splverifierCounter = 0 Loop: [L316] COND TRUE 1 [L318] COND TRUE splverifierCounter < 4 [L324] tmp = __VERIFIER_nondet_int() [L326] COND FALSE !(\read(tmp)) [L334] tmp___0 = __VERIFIER_nondet_int() [L336] COND FALSE !(\read(tmp___0)) [L344] tmp___2 = __VERIFIER_nondet_int() [L346] COND TRUE \read(tmp___2) [L380] COND FALSE !(\read(pumpRunning)) [L387] COND TRUE \read(systemActive) [L435] int tmp ; [L438] COND FALSE !(\read(pumpRunning)) [L409] int tmp ; [L412] COND TRUE ! pumpRunning [L532] int retValue_acc ; [L533] int tmp ; [L534] int tmp___0 ; [L242] int retValue_acc ; [L245] COND TRUE waterLevel < 2 [L246] retValue_acc = 1 [L247] return (retValue_acc); [L538] tmp = isHighWaterSensorDry() [L540] COND TRUE \read(tmp) [L541] tmp___0 = 0 [L545] retValue_acc = tmp___0 [L546] return (retValue_acc); [L414] tmp = isHighWaterLevel() [L416] COND FALSE !(\read(tmp)) [L277] int tmp ; [L278] int tmp___0 ; [L201] int retValue_acc ; [L204] retValue_acc = methaneLevelCritical [L205] return (retValue_acc); [L282] tmp = isMethaneLevelCritical() [L284] COND FALSE !(\read(tmp)) [L300] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:06:05,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77d04fd-e427-45ab-ac34-315d81944959/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...