./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product52.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_e3ac277a-5d28-488a-9f4c-a9b82cace37f/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ac277a-5d28-488a-9f4c-a9b82cace37f/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_e3ac277a-5d28-488a-9f4c-a9b82cace37f/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ac277a-5d28-488a-9f4c-a9b82cace37f/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ac277a-5d28-488a-9f4c-a9b82cace37f/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_e3ac277a-5d28-488a-9f4c-a9b82cace37f/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 8521353bcf4bae83665566564f0550ca2d5ed2f2d2c87d1236006cfbb2433fe4 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:03:07,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:03:07,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:03:07,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:03:07,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:03:07,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:03:07,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:03:07,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:03:07,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:03:07,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:03:07,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:03:07,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:03:07,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:03:07,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:03:07,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:03:07,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:03:07,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:03:07,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:03:07,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:03:07,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:03:07,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:03:07,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:03:07,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:03:07,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:03:07,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:03:07,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:03:07,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:03:07,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:03:07,208 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:03:07,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:03:07,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:03:07,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:03:07,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:03:07,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:03:07,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:03:07,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:03:07,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:03:07,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:03:07,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:03:07,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:03:07,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:03:07,222 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ac277a-5d28-488a-9f4c-a9b82cace37f/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 20:03:07,253 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:03:07,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:03:07,254 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:03:07,254 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:03:07,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:03:07,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:03:07,256 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:03:07,256 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:03:07,256 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:03:07,257 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:03:07,257 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:03:07,257 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:03:07,258 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:03:07,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:03:07,258 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:03:07,258 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:03:07,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:03:07,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:03:07,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:03:07,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:03:07,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:03:07,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:03:07,260 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:03:07,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:03:07,261 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:03:07,261 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:03:07,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:03:07,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:03:07,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:03:07,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:03:07,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:03:07,263 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:03:07,265 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:03:07,265 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_e3ac277a-5d28-488a-9f4c-a9b82cace37f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ac277a-5d28-488a-9f4c-a9b82cace37f/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8521353bcf4bae83665566564f0550ca2d5ed2f2d2c87d1236006cfbb2433fe4 [2021-10-21 20:03:07,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:03:07,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:03:07,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:03:07,666 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:03:07,667 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:03:07,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ac277a-5d28-488a-9f4c-a9b82cace37f/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c [2021-10-21 20:03:07,759 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ac277a-5d28-488a-9f4c-a9b82cace37f/bin/uautomizer-j4sWxH34Be/data/41e68042e/c3a463f4d23b4d49864208b2acb0970f/FLAG53090ec47 [2021-10-21 20:03:08,419 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:03:08,421 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ac277a-5d28-488a-9f4c-a9b82cace37f/sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c [2021-10-21 20:03:08,435 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ac277a-5d28-488a-9f4c-a9b82cace37f/bin/uautomizer-j4sWxH34Be/data/41e68042e/c3a463f4d23b4d49864208b2acb0970f/FLAG53090ec47 [2021-10-21 20:03:08,659 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ac277a-5d28-488a-9f4c-a9b82cace37f/bin/uautomizer-j4sWxH34Be/data/41e68042e/c3a463f4d23b4d49864208b2acb0970f [2021-10-21 20:03:08,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:03:08,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:03:08,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:03:08,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:03:08,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:03:08,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:03:08" (1/1) ... [2021-10-21 20:03:08,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a7a4a50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:08, skipping insertion in model container [2021-10-21 20:03:08,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:03:08" (1/1) ... [2021-10-21 20:03:08,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:03:08,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:03:09,144 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_e3ac277a-5d28-488a-9f4c-a9b82cace37f/sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c[6162,6175] [2021-10-21 20:03:09,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:03:09,289 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:03:09,337 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_e3ac277a-5d28-488a-9f4c-a9b82cace37f/sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c[6162,6175] [2021-10-21 20:03:09,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:03:09,426 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:03:09,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:09 WrapperNode [2021-10-21 20:03:09,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:03:09,428 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:03:09,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:03:09,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:03:09,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:09" (1/1) ... [2021-10-21 20:03:09,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:09" (1/1) ... [2021-10-21 20:03:09,520 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:03:09,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:03:09,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:03:09,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:03:09,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:09" (1/1) ... [2021-10-21 20:03:09,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:09" (1/1) ... [2021-10-21 20:03:09,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:09" (1/1) ... [2021-10-21 20:03:09,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:09" (1/1) ... [2021-10-21 20:03:09,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:09" (1/1) ... [2021-10-21 20:03:09,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:09" (1/1) ... [2021-10-21 20:03:09,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:09" (1/1) ... [2021-10-21 20:03:09,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:03:09,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:03:09,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:03:09,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:03:09,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:09" (1/1) ... [2021-10-21 20:03:09,616 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:09,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ac277a-5d28-488a-9f4c-a9b82cace37f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:09,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ac277a-5d28-488a-9f4c-a9b82cace37f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:09,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ac277a-5d28-488a-9f4c-a9b82cace37f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:03:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:03:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:03:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:03:09,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:03:11,048 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:03:11,049 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2021-10-21 20:03:11,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:03:11 BoogieIcfgContainer [2021-10-21 20:03:11,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:03:11,053 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:03:11,053 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:03:11,057 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:03:11,058 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:03:11,058 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:03:08" (1/3) ... [2021-10-21 20:03:11,060 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54587d1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:03:11, skipping insertion in model container [2021-10-21 20:03:11,060 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:03:11,061 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:09" (2/3) ... [2021-10-21 20:03:11,061 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54587d1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:03:11, skipping insertion in model container [2021-10-21 20:03:11,061 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:03:11,061 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:03:11" (3/3) ... [2021-10-21 20:03:11,063 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product52.cil.c [2021-10-21 20:03:11,116 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:03:11,116 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:03:11,116 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:03:11,116 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:03:11,116 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:03:11,117 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:03:11,117 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:03:11,117 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:03:11,146 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 116 states, 115 states have (on average 1.5391304347826087) internal successors, (177), 115 states have internal predecessors, (177), 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 20:03:11,197 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2021-10-21 20:03:11,198 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:03:11,198 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:03:11,208 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 20:03:11,208 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:03:11,208 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:03:11,209 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 116 states, 115 states have (on average 1.5391304347826087) internal successors, (177), 115 states have internal predecessors, (177), 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 20:03:11,218 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2021-10-21 20:03:11,218 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:03:11,218 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:03:11,219 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 20:03:11,219 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:03:11,225 INFO L791 eck$LassoCheckResult]: Stem: 103#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 36#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 7#L981true 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; 29#L989true main_#t~ret42 := valid_product_#res;main_~tmp~5 := main_#t~ret42;havoc main_#t~ret42; 66#L553true assume 0 != main_~tmp~5; 83#L527true havoc test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, 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; 31#L575-1true [2021-10-21 20:03:11,226 INFO L793 eck$LassoCheckResult]: Loop: 31#L575-1true assume !false; 87#L410true assume test_~splverifierCounter~0 < 4; 50#L411true test_~tmp~4 := test_#t~nondet38;havoc test_#t~nondet38; 4#L419true assume !(0 != test_~tmp~4); 110#L419-1true test_~tmp___0~2 := test_#t~nondet39;havoc test_#t~nondet39; 71#L429true assume !(0 != test_~tmp___0~2); 52#L429-1true test_~tmp___2~0 := test_#t~nondet40;havoc test_#t~nondet40; 51#L439true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 92#L447-1true assume !(0 != ~pumpRunning~0); 38#L176true assume !(0 != ~systemActive~0); 26#L183true havoc __utac_acc__Specification1_spec__1_#t~ret43, __utac_acc__Specification1_spec__1_#t~ret44, __utac_acc__Specification1_spec__1_~tmp~6, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~6;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 104#L101true __utac_acc__Specification1_spec__1_#t~ret43 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~6 := __utac_acc__Specification1_spec__1_#t~ret43;havoc __utac_acc__Specification1_spec__1_#t~ret43; 13#L575true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6); 31#L575-1true [2021-10-21 20:03:11,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:03:11,233 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-21 20:03:11,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:03:11,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729317508] [2021-10-21 20:03:11,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:03:11,246 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:03:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:03:11,641 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:03:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:03:11,939 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:03:11,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:03:11,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1670232116, now seen corresponding path program 1 times [2021-10-21 20:03:11,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:03:11,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555468299] [2021-10-21 20:03:11,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:03:11,948 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:03:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:03:12,045 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 20:03:12,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:03:12,046 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555468299] [2021-10-21 20:03:12,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555468299] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:03:12,047 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:03:12,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:03:12,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767765182] [2021-10-21 20:03:12,055 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:03:12,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:03:12,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:03:12,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:03:12,082 INFO L87 Difference]: Start difference. First operand has 116 states, 115 states have (on average 1.5391304347826087) internal successors, (177), 115 states have internal predecessors, (177), 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 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 20:03:12,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:03:12,174 INFO L93 Difference]: Finished difference Result 226 states and 330 transitions. [2021-10-21 20:03:12,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:03:12,177 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 226 states and 330 transitions. [2021-10-21 20:03:12,186 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 146 [2021-10-21 20:03:12,203 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 226 states to 212 states and 315 transitions. [2021-10-21 20:03:12,204 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 212 [2021-10-21 20:03:12,206 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 212 [2021-10-21 20:03:12,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 212 states and 315 transitions. [2021-10-21 20:03:12,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:03:12,209 INFO L681 BuchiCegarLoop]: Abstraction has 212 states and 315 transitions. [2021-10-21 20:03:12,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states and 315 transitions. [2021-10-21 20:03:12,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 210. [2021-10-21 20:03:12,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 210 states have (on average 1.4857142857142858) internal successors, (312), 209 states have internal predecessors, (312), 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 20:03:12,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 312 transitions. [2021-10-21 20:03:12,266 INFO L704 BuchiCegarLoop]: Abstraction has 210 states and 312 transitions. [2021-10-21 20:03:12,267 INFO L587 BuchiCegarLoop]: Abstraction has 210 states and 312 transitions. [2021-10-21 20:03:12,267 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:03:12,267 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 210 states and 312 transitions. [2021-10-21 20:03:12,272 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 144 [2021-10-21 20:03:12,272 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:03:12,272 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:03:12,273 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 20:03:12,273 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:03:12,273 INFO L791 eck$LassoCheckResult]: Stem: 463#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 409#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 359#L981 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; 360#L989 main_#t~ret42 := valid_product_#res;main_~tmp~5 := main_#t~ret42;havoc main_#t~ret42; 399#L553 assume 0 != main_~tmp~5; 440#L527 havoc test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, 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; 369#L575-1 [2021-10-21 20:03:12,274 INFO L793 eck$LassoCheckResult]: Loop: 369#L575-1 assume !false; 402#L410 assume test_~splverifierCounter~0 < 4; 425#L411 test_~tmp~4 := test_#t~nondet38;havoc test_#t~nondet38; 351#L419 assume !(0 != test_~tmp~4); 353#L419-1 test_~tmp___0~2 := test_#t~nondet39;havoc test_#t~nondet39; 466#L429 assume !(0 != test_~tmp___0~2); 493#L429-1 test_~tmp___2~0 := test_#t~nondet40;havoc test_#t~nondet40; 492#L439 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 427#L447-1 assume !(0 != ~pumpRunning~0); 486#L176 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret18, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 483#L234 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 478#L208-1 assume !(0 == ~pumpRunning~0); 477#L183 havoc __utac_acc__Specification1_spec__1_#t~ret43, __utac_acc__Specification1_spec__1_#t~ret44, __utac_acc__Specification1_spec__1_~tmp~6, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~6;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 464#L101 __utac_acc__Specification1_spec__1_#t~ret43 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~6 := __utac_acc__Specification1_spec__1_#t~ret43;havoc __utac_acc__Specification1_spec__1_#t~ret43; 373#L575 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6); 369#L575-1 [2021-10-21 20:03:12,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:03:12,274 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-21 20:03:12,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:03:12,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564634843] [2021-10-21 20:03:12,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:03:12,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:03:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:03:12,351 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:03:12,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:03:12,464 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:03:12,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:03:12,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1415980246, now seen corresponding path program 1 times [2021-10-21 20:03:12,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:03:12,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785348953] [2021-10-21 20:03:12,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:03:12,466 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:03:12,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:03:12,486 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 20:03:12,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:03:12,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785348953] [2021-10-21 20:03:12,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785348953] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:03:12,487 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:03:12,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:03:12,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161095044] [2021-10-21 20:03:12,488 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:03:12,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:03:12,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:03:12,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:03:12,490 INFO L87 Difference]: Start difference. First operand 210 states and 312 transitions. cyclomatic complexity: 105 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 20:03:12,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:03:12,593 INFO L93 Difference]: Finished difference Result 293 states and 412 transitions. [2021-10-21 20:03:12,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:03:12,594 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 293 states and 412 transitions. [2021-10-21 20:03:12,600 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 207 [2021-10-21 20:03:12,605 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 293 states to 293 states and 412 transitions. [2021-10-21 20:03:12,605 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 293 [2021-10-21 20:03:12,607 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 293 [2021-10-21 20:03:12,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 293 states and 412 transitions. [2021-10-21 20:03:12,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:03:12,610 INFO L681 BuchiCegarLoop]: Abstraction has 293 states and 412 transitions. [2021-10-21 20:03:12,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states and 412 transitions. [2021-10-21 20:03:12,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2021-10-21 20:03:12,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 293 states have (on average 1.4061433447098977) internal successors, (412), 292 states have internal predecessors, (412), 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 20:03:12,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 412 transitions. [2021-10-21 20:03:12,634 INFO L704 BuchiCegarLoop]: Abstraction has 293 states and 412 transitions. [2021-10-21 20:03:12,634 INFO L587 BuchiCegarLoop]: Abstraction has 293 states and 412 transitions. [2021-10-21 20:03:12,634 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 20:03:12,634 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 293 states and 412 transitions. [2021-10-21 20:03:12,638 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 207 [2021-10-21 20:03:12,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:03:12,638 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:03:12,639 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 20:03:12,639 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 20:03:12,640 INFO L791 eck$LassoCheckResult]: Stem: 995#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 920#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 867#L981 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; 868#L989 main_#t~ret42 := valid_product_#res;main_~tmp~5 := main_#t~ret42;havoc main_#t~ret42; 909#L553 assume 0 != main_~tmp~5; 960#L527 havoc test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, 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; 978#L575-1 [2021-10-21 20:03:12,640 INFO L793 eck$LassoCheckResult]: Loop: 978#L575-1 assume !false; 1044#L410 assume test_~splverifierCounter~0 < 4; 939#L411 test_~tmp~4 := test_#t~nondet38;havoc test_#t~nondet38; 940#L419 assume !(0 != test_~tmp~4); 1041#L419-1 test_~tmp___0~2 := test_#t~nondet39;havoc test_#t~nondet39; 1040#L429 assume !(0 != test_~tmp___0~2); 1038#L429-1 test_~tmp___2~0 := test_#t~nondet40;havoc test_#t~nondet40; 1037#L439 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 942#L447-1 assume !(0 != ~pumpRunning~0); 985#L176 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret18, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1062#L234 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1061#L208-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret36, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1060#L141-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1058#L146-1 isHighWaterLevel_#t~ret36 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret36;havoc isHighWaterLevel_#t~ret36; 1056#L336-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 1054#L336-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1052#L342-1 processEnvironment__wrappee__highWaterSensor_#t~ret17 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret17;havoc processEnvironment__wrappee__highWaterSensor_#t~ret17; 1050#L212-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1048#L183 havoc __utac_acc__Specification1_spec__1_#t~ret43, __utac_acc__Specification1_spec__1_#t~ret44, __utac_acc__Specification1_spec__1_~tmp~6, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~6;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 1047#L101 __utac_acc__Specification1_spec__1_#t~ret43 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~6 := __utac_acc__Specification1_spec__1_#t~ret43;havoc __utac_acc__Specification1_spec__1_#t~ret43; 1046#L575 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6); 978#L575-1 [2021-10-21 20:03:12,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:03:12,641 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-21 20:03:12,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:03:12,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209472228] [2021-10-21 20:03:12,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:03:12,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:03:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:03:12,723 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:03:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:03:12,789 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:03:12,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:03:12,792 INFO L82 PathProgramCache]: Analyzing trace with hash 890409558, now seen corresponding path program 1 times [2021-10-21 20:03:12,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:03:12,793 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120337523] [2021-10-21 20:03:12,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:03:12,795 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:03:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:03:12,803 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:03:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:03:12,846 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:03:12,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:03:12,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1346480752, now seen corresponding path program 1 times [2021-10-21 20:03:12,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:03:12,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238904377] [2021-10-21 20:03:12,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:03:12,849 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:03:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:03:12,948 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:03:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:03:13,043 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:04:26,592 WARN L207 SmtUtils]: Spent 1.22 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-21 20:05:44,099 WARN L207 SmtUtils]: Spent 37.47 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-21 20:05:44,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:05:44 BoogieIcfgContainer [2021-10-21 20:05:44,305 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:05:44,306 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:05:44,306 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:05:44,306 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:05:44,307 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:03:11" (3/4) ... [2021-10-21 20:05:44,310 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 20:05:44,387 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ac277a-5d28-488a-9f4c-a9b82cace37f/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:05:44,387 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:05:44,392 INFO L168 Benchmark]: Toolchain (without parser) took 155723.64 ms. Allocated memory was 90.2 MB in the beginning and 172.0 MB in the end (delta: 81.8 MB). Free memory was 54.6 MB in the beginning and 41.0 MB in the end (delta: 13.6 MB). Peak memory consumption was 95.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:44,393 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 90.2 MB. Free memory was 59.9 MB in the beginning and 59.9 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:05:44,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 758.33 ms. Allocated memory is still 90.2 MB. Free memory was 54.3 MB in the beginning and 56.0 MB in the end (delta: -1.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:44,394 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.54 ms. Allocated memory is still 90.2 MB. Free memory was 56.0 MB in the beginning and 52.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:44,395 INFO L168 Benchmark]: Boogie Preprocessor took 83.45 ms. Allocated memory is still 90.2 MB. Free memory was 52.4 MB in the beginning and 50.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:44,395 INFO L168 Benchmark]: RCFGBuilder took 1446.64 ms. Allocated memory was 90.2 MB in the beginning and 134.2 MB in the end (delta: 44.0 MB). Free memory was 49.7 MB in the beginning and 82.2 MB in the end (delta: -32.6 MB). Peak memory consumption was 21.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:44,397 INFO L168 Benchmark]: BuchiAutomizer took 153252.60 ms. Allocated memory was 134.2 MB in the beginning and 172.0 MB in the end (delta: 37.7 MB). Free memory was 82.2 MB in the beginning and 44.0 MB in the end (delta: 38.3 MB). Peak memory consumption was 83.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:44,398 INFO L168 Benchmark]: Witness Printer took 81.54 ms. Allocated memory is still 172.0 MB. Free memory was 44.0 MB in the beginning and 41.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:44,404 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 90.2 MB. Free memory was 59.9 MB in the beginning and 59.9 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 758.33 ms. Allocated memory is still 90.2 MB. Free memory was 54.3 MB in the beginning and 56.0 MB in the end (delta: -1.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.54 ms. Allocated memory is still 90.2 MB. Free memory was 56.0 MB in the beginning and 52.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 83.45 ms. Allocated memory is still 90.2 MB. Free memory was 52.4 MB in the beginning and 50.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1446.64 ms. Allocated memory was 90.2 MB in the beginning and 134.2 MB in the end (delta: 44.0 MB). Free memory was 49.7 MB in the beginning and 82.2 MB in the end (delta: -32.6 MB). Peak memory consumption was 21.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 153252.60 ms. Allocated memory was 134.2 MB in the beginning and 172.0 MB in the end (delta: 37.7 MB). Free memory was 82.2 MB in the beginning and 44.0 MB in the end (delta: 38.3 MB). Peak memory consumption was 83.1 MB. Max. memory is 16.1 GB. * Witness Printer took 81.54 ms. Allocated memory is still 172.0 MB. Free memory was 44.0 MB in the beginning and 41.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 3 locations. The remainder module has 293 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 153.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 152.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 66.9ms AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 293 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 324 SDtfs, 271 SDslu, 224 SDs, 0 SdLazy, 41 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 95.9ms Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 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: 409]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=16805} State at position 1 is {NULL=0, NULL=0, NULL=16808, NULL=0, NULL=16805, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b85bc9a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f30b207=0, NULL=16828, NULL=16829, retValue_acc=1, methaneLevelCritical=0, tmp=0, NULL=0, NULL=16818, NULL=16814, NULL=0, tmp___1=0, NULL=16824, retValue_acc=0, NULL=16813, NULL=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4606b547=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b13e16d=0, NULL=16817, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f66d723=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@379b88ed=70, waterLevel=1, NULL=0, \result=1, head=0, pumpRunning=0, NULL=16815, tmp=0, retValue_acc=1, NULL=0, NULL=0, tmp=1, \result=1, NULL=0, NULL=0, NULL=16832, NULL=0, NULL=0, tmp=1, NULL=0, NULL=0, tmp___0=0, NULL=16820, NULL=16827, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b70a74e=0, NULL=16822, NULL=0, retValue_acc=0, NULL=16823, retValue_acc=0, NULL=16830, NULL=16819, tmp___0=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5fc32246=0, NULL=0, NULL=0, NULL=0, tmp=0, NULL=16825, NULL=16810, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@768af6c=0, NULL=16809, \result=0, NULL=0, NULL=16807, \result=0, NULL=16811, NULL=16831, NULL=0, NULL=16833, NULL=16826, NULL=16806, tmp___2=70, splverifierCounter=0, NULL=0, \result=0, NULL=16821, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47f93bab=0, NULL=16816, NULL=16812} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L168] int pumpRunning = 0; [L169] int systemActive = 1; [L468] int cleanupTimeShifts = 4; [L762] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L544] int retValue_acc ; [L545] int tmp ; [L985] int retValue_acc ; [L988] retValue_acc = 1 [L989] return (retValue_acc); [L551] tmp = valid_product() [L553] COND TRUE \read(tmp) [L400] int splverifierCounter ; [L401] int tmp ; [L402] int tmp___0 ; [L403] int tmp___1 ; [L404] int tmp___2 ; [L407] splverifierCounter = 0 Loop: [L409] COND TRUE 1 [L411] COND TRUE splverifierCounter < 4 [L417] tmp = __VERIFIER_nondet_int() [L419] COND FALSE !(\read(tmp)) [L427] tmp___0 = __VERIFIER_nondet_int() [L429] COND FALSE !(\read(tmp___0)) [L437] tmp___2 = __VERIFIER_nondet_int() [L439] COND TRUE \read(tmp___2) [L384] systemActive = 1 [L176] COND FALSE !(\read(pumpRunning)) [L183] COND TRUE \read(systemActive) [L231] int tmp ; [L234] COND FALSE !(\read(pumpRunning)) [L205] int tmp ; [L208] COND TRUE ! pumpRunning [L328] int retValue_acc ; [L329] int tmp ; [L330] int tmp___0 ; [L138] int retValue_acc ; [L141] COND TRUE waterLevel < 2 [L142] retValue_acc = 1 [L143] return (retValue_acc); [L334] tmp = isHighWaterSensorDry() [L336] COND TRUE \read(tmp) [L337] tmp___0 = 0 [L341] retValue_acc = tmp___0 [L342] return (retValue_acc); [L210] tmp = isHighWaterLevel() [L212] COND FALSE !(\read(tmp)) [L568] int tmp ; [L569] int tmp___0 ; [L97] int retValue_acc ; [L100] retValue_acc = methaneLevelCritical [L101] return (retValue_acc); [L573] tmp = isMethaneLevelCritical() [L575] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 20:05:44,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ac277a-5d28-488a-9f4c-a9b82cace37f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...