./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98d418-a115-4f66-ba88-66ce6606d5f6/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98d418-a115-4f66-ba88-66ce6606d5f6/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_dd98d418-a115-4f66-ba88-66ce6606d5f6/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98d418-a115-4f66-ba88-66ce6606d5f6/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98d418-a115-4f66-ba88-66ce6606d5f6/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98d418-a115-4f66-ba88-66ce6606d5f6/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 59d087b21d164936324b83c1e291a64a9503c1749575f000c4a0a3b8eb208c6d ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:54:32,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:54:32,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:54:32,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:54:32,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:54:32,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:54:32,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:54:32,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:54:32,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:54:32,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:54:32,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:54:32,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:54:32,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:54:32,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:54:32,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:54:32,530 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:54:32,533 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:54:32,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:54:32,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:54:32,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:54:32,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:54:32,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:54:32,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:54:32,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:54:32,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:54:32,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:54:32,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:54:32,564 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:54:32,565 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:54:32,566 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:54:32,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:54:32,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:54:32,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:54:32,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:54:32,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:54:32,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:54:32,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:54:32,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:54:32,576 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:54:32,577 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:54:32,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:54:32,578 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98d418-a115-4f66-ba88-66ce6606d5f6/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:54:32,625 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:54:32,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:54:32,626 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:54:32,626 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:54:32,627 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:54:32,628 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:54:32,628 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:54:32,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:54:32,628 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:54:32,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:54:32,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:54:32,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:54:32,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:54:32,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:54:32,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:54:32,630 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:54:32,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:54:32,631 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:54:32,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:54:32,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:54:32,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:54:32,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:54:32,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:54:32,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:54:32,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:54:32,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:54:32,633 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:54:32,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:54:32,633 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:54:32,634 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:54:32,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:54:32,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:54:32,634 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_dd98d418-a115-4f66-ba88-66ce6606d5f6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98d418-a115-4f66-ba88-66ce6606d5f6/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59d087b21d164936324b83c1e291a64a9503c1749575f000c4a0a3b8eb208c6d [2021-10-21 19:54:32,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:54:32,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:54:32,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:54:32,938 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:54:32,940 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:54:32,941 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98d418-a115-4f66-ba88-66ce6606d5f6/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c [2021-10-21 19:54:33,034 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98d418-a115-4f66-ba88-66ce6606d5f6/bin/uautomizer-j4sWxH34Be/data/4215badfd/91a681e8d38f4870bda8b8005be344d8/FLAG586332e09 [2021-10-21 19:54:33,534 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:54:33,535 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98d418-a115-4f66-ba88-66ce6606d5f6/sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c [2021-10-21 19:54:33,551 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98d418-a115-4f66-ba88-66ce6606d5f6/bin/uautomizer-j4sWxH34Be/data/4215badfd/91a681e8d38f4870bda8b8005be344d8/FLAG586332e09 [2021-10-21 19:54:33,886 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98d418-a115-4f66-ba88-66ce6606d5f6/bin/uautomizer-j4sWxH34Be/data/4215badfd/91a681e8d38f4870bda8b8005be344d8 [2021-10-21 19:54:33,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:54:33,890 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:54:33,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:54:33,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:54:33,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:54:33,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:54:33" (1/1) ... [2021-10-21 19:54:33,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52aab748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:33, skipping insertion in model container [2021-10-21 19:54:33,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:54:33" (1/1) ... [2021-10-21 19:54:33,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:54:33,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:54:34,287 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_dd98d418-a115-4f66-ba88-66ce6606d5f6/sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c[14361,14374] [2021-10-21 19:54:34,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:54:34,345 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:54:34,446 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_dd98d418-a115-4f66-ba88-66ce6606d5f6/sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c[14361,14374] [2021-10-21 19:54:34,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:54:34,493 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:54:34,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:34 WrapperNode [2021-10-21 19:54:34,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:54:34,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:54:34,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:54:34,497 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:54:34,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:34" (1/1) ... [2021-10-21 19:54:34,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:34" (1/1) ... [2021-10-21 19:54:34,589 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:54:34,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:54:34,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:54:34,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:54:34,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:34" (1/1) ... [2021-10-21 19:54:34,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:34" (1/1) ... [2021-10-21 19:54:34,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:34" (1/1) ... [2021-10-21 19:54:34,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:34" (1/1) ... [2021-10-21 19:54:34,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:34" (1/1) ... [2021-10-21 19:54:34,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:34" (1/1) ... [2021-10-21 19:54:34,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:34" (1/1) ... [2021-10-21 19:54:34,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:54:34,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:54:34,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:54:34,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:54:34,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:34" (1/1) ... [2021-10-21 19:54:34,689 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:54:34,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98d418-a115-4f66-ba88-66ce6606d5f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:34,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98d418-a115-4f66-ba88-66ce6606d5f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:54:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:54:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:54:34,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:54:34,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98d418-a115-4f66-ba88-66ce6606d5f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:54:35,652 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:54:35,652 INFO L299 CfgBuilder]: Removed 104 assume(true) statements. [2021-10-21 19:54:35,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:54:35 BoogieIcfgContainer [2021-10-21 19:54:35,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:54:35,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:54:35,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:54:35,661 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:54:35,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:54:33" (1/3) ... [2021-10-21 19:54:35,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac0fba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:54:35, skipping insertion in model container [2021-10-21 19:54:35,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:34" (2/3) ... [2021-10-21 19:54:35,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac0fba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:54:35, skipping insertion in model container [2021-10-21 19:54:35,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:54:35" (3/3) ... [2021-10-21 19:54:35,665 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product26.cil.c [2021-10-21 19:54:35,672 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:54:35,672 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-21 19:54:35,749 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:54:35,759 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:54:35,760 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-21 19:54:35,782 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 77 states have (on average 1.5584415584415585) internal successors, (120), 80 states have internal predecessors, (120), 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 19:54:35,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-21 19:54:35,790 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:54:35,791 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:54:35,792 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:54:35,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:35,799 INFO L82 PathProgramCache]: Analyzing trace with hash 928665618, now seen corresponding path program 1 times [2021-10-21 19:54:35,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:35,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772557564] [2021-10-21 19:54:35,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:35,814 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:54:36,119 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 19:54:36,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:54:36,120 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772557564] [2021-10-21 19:54:36,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772557564] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:54:36,122 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:54:36,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:54:36,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582606685] [2021-10-21 19:54:36,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 19:54:36,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:54:36,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:54:36,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:54:36,150 INFO L87 Difference]: Start difference. First operand has 81 states, 77 states have (on average 1.5584415584415585) internal successors, (120), 80 states have internal predecessors, (120), 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 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 19:54:36,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:54:36,175 INFO L93 Difference]: Finished difference Result 156 states and 233 transitions. [2021-10-21 19:54:36,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:54:36,176 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) Word has length 18 [2021-10-21 19:54:36,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:54:36,187 INFO L225 Difference]: With dead ends: 156 [2021-10-21 19:54:36,187 INFO L226 Difference]: Without dead ends: 77 [2021-10-21 19:54:36,191 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:54:36,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-10-21 19:54:36,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-10-21 19:54:36,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 74 states have (on average 1.4594594594594594) internal successors, (108), 76 states have internal predecessors, (108), 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 19:54:36,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2021-10-21 19:54:36,234 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 108 transitions. Word has length 18 [2021-10-21 19:54:36,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:54:36,235 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 108 transitions. [2021-10-21 19:54:36,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 19:54:36,236 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 108 transitions. [2021-10-21 19:54:36,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-21 19:54:36,237 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:54:36,238 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:54:36,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:54:36,239 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:54:36,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:36,240 INFO L82 PathProgramCache]: Analyzing trace with hash 674916017, now seen corresponding path program 1 times [2021-10-21 19:54:36,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:36,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349941423] [2021-10-21 19:54:36,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:36,241 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:36,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:54:36,398 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 19:54:36,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:54:36,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349941423] [2021-10-21 19:54:36,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349941423] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:54:36,400 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:54:36,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:54:36,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619645609] [2021-10-21 19:54:36,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:54:36,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:54:36,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:54:36,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:54:36,406 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:54:36,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:54:36,432 INFO L93 Difference]: Finished difference Result 77 states and 108 transitions. [2021-10-21 19:54:36,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:54:36,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-21 19:54:36,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:54:36,436 INFO L225 Difference]: With dead ends: 77 [2021-10-21 19:54:36,437 INFO L226 Difference]: Without dead ends: 35 [2021-10-21 19:54:36,438 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:54:36,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-21 19:54:36,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-21 19:54:36,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 34 states have internal predecessors, (49), 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 19:54:36,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2021-10-21 19:54:36,457 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2021-10-21 19:54:36,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:54:36,457 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2021-10-21 19:54:36,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:54:36,458 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2021-10-21 19:54:36,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-21 19:54:36,462 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:54:36,463 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:54:36,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:54:36,463 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:54:36,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:36,476 INFO L82 PathProgramCache]: Analyzing trace with hash 492093711, now seen corresponding path program 1 times [2021-10-21 19:54:36,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:36,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160167236] [2021-10-21 19:54:36,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:36,477 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:54:36,628 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 19:54:36,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:54:36,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160167236] [2021-10-21 19:54:36,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160167236] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:54:36,630 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:54:36,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:54:36,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280556971] [2021-10-21 19:54:36,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:54:36,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:54:36,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:54:36,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:54:36,633 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:54:36,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:54:36,680 INFO L93 Difference]: Finished difference Result 64 states and 92 transitions. [2021-10-21 19:54:36,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:54:36,681 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-21 19:54:36,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:54:36,682 INFO L225 Difference]: With dead ends: 64 [2021-10-21 19:54:36,683 INFO L226 Difference]: Without dead ends: 35 [2021-10-21 19:54:36,683 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:54:36,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-21 19:54:36,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-21 19:54:36,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.411764705882353) internal successors, (48), 34 states have internal predecessors, (48), 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 19:54:36,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2021-10-21 19:54:36,690 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 24 [2021-10-21 19:54:36,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:54:36,690 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2021-10-21 19:54:36,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:54:36,691 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2021-10-21 19:54:36,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-21 19:54:36,692 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:54:36,692 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:54:36,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 19:54:36,693 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:54:36,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:36,694 INFO L82 PathProgramCache]: Analyzing trace with hash -147058101, now seen corresponding path program 1 times [2021-10-21 19:54:36,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:36,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616413751] [2021-10-21 19:54:36,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:36,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:54:36,800 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 19:54:36,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:54:36,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616413751] [2021-10-21 19:54:36,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616413751] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:54:36,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:54:36,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:54:36,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881014330] [2021-10-21 19:54:36,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:54:36,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:54:36,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:54:36,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:54:36,804 INFO L87 Difference]: Start difference. First operand 35 states and 48 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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 19:54:36,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:54:36,910 INFO L93 Difference]: Finished difference Result 172 states and 255 transitions. [2021-10-21 19:54:36,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:54:36,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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) Word has length 25 [2021-10-21 19:54:36,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:54:36,913 INFO L225 Difference]: With dead ends: 172 [2021-10-21 19:54:36,913 INFO L226 Difference]: Without dead ends: 143 [2021-10-21 19:54:36,914 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 31.9ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:54:36,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-10-21 19:54:36,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 60. [2021-10-21 19:54:36,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.423728813559322) internal successors, (84), 59 states have internal predecessors, (84), 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 19:54:36,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 84 transitions. [2021-10-21 19:54:36,933 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 84 transitions. Word has length 25 [2021-10-21 19:54:36,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:54:36,934 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 84 transitions. [2021-10-21 19:54:36,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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 19:54:36,934 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 84 transitions. [2021-10-21 19:54:36,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-21 19:54:36,936 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:54:36,937 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:54:36,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-21 19:54:36,938 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:54:36,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:36,941 INFO L82 PathProgramCache]: Analyzing trace with hash -2106367091, now seen corresponding path program 1 times [2021-10-21 19:54:36,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:36,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917504591] [2021-10-21 19:54:36,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:36,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:37,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:37,044 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:54:37,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:37,201 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:54:37,202 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 19:54:37,203 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:54:37,205 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:54:37,205 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:54:37,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-21 19:54:37,213 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:54:37,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:54:37 BoogieIcfgContainer [2021-10-21 19:54:37,337 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:54:37,338 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:54:37,338 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:54:37,338 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:54:37,338 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:54:35" (3/4) ... [2021-10-21 19:54:37,340 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-21 19:54:37,453 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98d418-a115-4f66-ba88-66ce6606d5f6/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:54:37,453 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:54:37,455 INFO L168 Benchmark]: Toolchain (without parser) took 3564.50 ms. Allocated memory was 98.6 MB in the beginning and 130.0 MB in the end (delta: 31.5 MB). Free memory was 65.0 MB in the beginning and 78.4 MB in the end (delta: -13.4 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:54:37,455 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 98.6 MB. Free memory is still 51.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:54:37,456 INFO L168 Benchmark]: CACSL2BoogieTranslator took 598.61 ms. Allocated memory is still 98.6 MB. Free memory was 64.8 MB in the beginning and 66.9 MB in the end (delta: -2.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:54:37,456 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.37 ms. Allocated memory is still 98.6 MB. Free memory was 66.9 MB in the beginning and 63.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:54:37,457 INFO L168 Benchmark]: Boogie Preprocessor took 83.81 ms. Allocated memory is still 98.6 MB. Free memory was 63.9 MB in the beginning and 61.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:54:37,457 INFO L168 Benchmark]: RCFGBuilder took 974.66 ms. Allocated memory was 98.6 MB in the beginning and 130.0 MB in the end (delta: 31.5 MB). Free memory was 61.4 MB in the beginning and 80.8 MB in the end (delta: -19.3 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:54:37,458 INFO L168 Benchmark]: TraceAbstraction took 1680.24 ms. Allocated memory is still 130.0 MB. Free memory was 80.6 MB in the beginning and 88.9 MB in the end (delta: -8.2 MB). Peak memory consumption was 42.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:54:37,458 INFO L168 Benchmark]: Witness Printer took 115.47 ms. Allocated memory is still 130.0 MB. Free memory was 88.9 MB in the beginning and 78.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:54:37,461 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 98.6 MB. Free memory is still 51.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 598.61 ms. Allocated memory is still 98.6 MB. Free memory was 64.8 MB in the beginning and 66.9 MB in the end (delta: -2.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 98.37 ms. Allocated memory is still 98.6 MB. Free memory was 66.9 MB in the beginning and 63.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 83.81 ms. Allocated memory is still 98.6 MB. Free memory was 63.9 MB in the beginning and 61.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 974.66 ms. Allocated memory was 98.6 MB in the beginning and 130.0 MB in the end (delta: 31.5 MB). Free memory was 61.4 MB in the beginning and 80.8 MB in the end (delta: -19.3 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1680.24 ms. Allocated memory is still 130.0 MB. Free memory was 80.6 MB in the beginning and 88.9 MB in the end (delta: -8.2 MB). Peak memory consumption was 42.1 MB. Max. memory is 16.1 GB. * Witness Printer took 115.47 ms. Allocated memory is still 130.0 MB. Free memory was 88.9 MB in the beginning and 78.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 653]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L194] int waterLevel = 1; [L195] int methaneLevelCritical = 0; [L452] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L662] int pumpRunning = 0; [L663] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L180] int retValue_acc ; [L183] retValue_acc = 1 [L184] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L842] int splverifierCounter ; [L843] int tmp ; [L844] int tmp___0 ; [L845] int tmp___1 ; [L846] int tmp___2 ; [L849] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L851] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L853] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L859] tmp = __VERIFIER_nondet_int() [L861] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L212] COND TRUE waterLevel < 2 [L213] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L869] tmp___0 = __VERIFIER_nondet_int() [L871] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L879] tmp___2 = __VERIFIER_nondet_int() [L881] COND TRUE \read(tmp___2) [L836] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L670] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L677] COND TRUE \read(systemActive) [L699] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L702] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L909] int tmp ; [L910] int tmp___0 ; [L911] int tmp___1 ; [L233] int retValue_acc ; [L236] retValue_acc = methaneLevelCritical [L237] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L915] tmp = isMethaneLevelCritical() [L917] COND FALSE !(\read(tmp)) [L265] int retValue_acc ; [L268] retValue_acc = waterLevel [L269] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L921] tmp___0 = getWaterLevel() [L923] COND TRUE tmp___0 == 2 [L769] int retValue_acc ; [L772] retValue_acc = pumpRunning [L773] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L925] tmp___1 = isPumpRunning() [L927] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L653] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - UnprovableResult [Line: 653]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 653]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 81 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1464.4ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 21.4ms, AutomataDifference: 256.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 17.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 277 SDtfs, 371 SDslu, 184 SDs, 0 SdLazy, 49 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 62.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 65.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 70.5ms AutomataMinimizationTime, 4 MinimizatonAttempts, 83 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 37.6ms SsaConstructionTime, 327.1ms SatisfiabilityAnalysisTime, 362.9ms InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 138 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:54:37,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98d418-a115-4f66-ba88-66ce6606d5f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...