./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad8d389-4a23-48bf-bade-f44e0333fab1/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad8d389-4a23-48bf-bade-f44e0333fab1/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad8d389-4a23-48bf-bade-f44e0333fab1/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad8d389-4a23-48bf-bade-f44e0333fab1/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad8d389-4a23-48bf-bade-f44e0333fab1/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad8d389-4a23-48bf-bade-f44e0333fab1/bin/uautomizer-WNIpwEf4Nt --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 93fd59a78b989bd327b1ea5bb76e8d96f458ffc8 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-4e77c04 [2021-10-13 00:56:16,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:56:16,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:56:16,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:56:16,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:56:16,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:56:16,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:56:16,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:56:16,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:56:16,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:56:16,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:56:16,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:56:16,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:56:16,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:56:16,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:56:16,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:56:16,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:56:16,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:56:16,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:56:16,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:56:16,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:56:16,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:56:16,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:56:16,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:56:16,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:56:16,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:56:16,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:56:16,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:56:16,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:56:16,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:56:16,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:56:16,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:56:16,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:56:16,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:56:16,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:56:16,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:56:16,330 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:56:16,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:56:16,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:56:16,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:56:16,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:56:16,334 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad8d389-4a23-48bf-bade-f44e0333fab1/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:56:16,387 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:56:16,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:56:16,389 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:56:16,389 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:56:16,391 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:56:16,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:56:16,392 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:56:16,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:56:16,393 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:56:16,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:56:16,394 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:56:16,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:56:16,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:56:16,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:56:16,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:56:16,396 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:56:16,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:56:16,396 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:56:16,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:56:16,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:56:16,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:56:16,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:56:16,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:56:16,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:56:16,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:56:16,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:56:16,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:56:16,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:56:16,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:56:16,401 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:56:16,402 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_6ad8d389-4a23-48bf-bade-f44e0333fab1/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad8d389-4a23-48bf-bade-f44e0333fab1/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93fd59a78b989bd327b1ea5bb76e8d96f458ffc8 [2021-10-13 00:56:16,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:56:16,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:56:16,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:56:16,750 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:56:16,751 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:56:16,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad8d389-4a23-48bf-bade-f44e0333fab1/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c [2021-10-13 00:56:16,845 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad8d389-4a23-48bf-bade-f44e0333fab1/bin/uautomizer-WNIpwEf4Nt/data/d22f9a12d/b959c0bb145b4832a2340e37990c584c/FLAG837851180 [2021-10-13 00:56:17,432 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:56:17,432 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad8d389-4a23-48bf-bade-f44e0333fab1/sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c [2021-10-13 00:56:17,449 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad8d389-4a23-48bf-bade-f44e0333fab1/bin/uautomizer-WNIpwEf4Nt/data/d22f9a12d/b959c0bb145b4832a2340e37990c584c/FLAG837851180 [2021-10-13 00:56:17,745 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad8d389-4a23-48bf-bade-f44e0333fab1/bin/uautomizer-WNIpwEf4Nt/data/d22f9a12d/b959c0bb145b4832a2340e37990c584c [2021-10-13 00:56:17,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:56:17,749 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:56:17,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:56:17,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:56:17,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:56:17,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:56:17" (1/1) ... [2021-10-13 00:56:17,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ba3f0c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:17, skipping insertion in model container [2021-10-13 00:56:17,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:56:17" (1/1) ... [2021-10-13 00:56:17,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:56:17,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:56:18,190 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_6ad8d389-4a23-48bf-bade-f44e0333fab1/sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c[12347,12360] [2021-10-13 00:56:18,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:56:18,263 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:56:18,324 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_6ad8d389-4a23-48bf-bade-f44e0333fab1/sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c[12347,12360] [2021-10-13 00:56:18,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:56:18,369 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:56:18,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:18 WrapperNode [2021-10-13 00:56:18,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:56:18,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:56:18,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:56:18,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:56:18,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:18" (1/1) ... [2021-10-13 00:56:18,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:18" (1/1) ... [2021-10-13 00:56:18,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:56:18,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:56:18,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:56:18,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:56:18,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:18" (1/1) ... [2021-10-13 00:56:18,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:18" (1/1) ... [2021-10-13 00:56:18,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:18" (1/1) ... [2021-10-13 00:56:18,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:18" (1/1) ... [2021-10-13 00:56:18,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:18" (1/1) ... [2021-10-13 00:56:18,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:18" (1/1) ... [2021-10-13 00:56:18,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:18" (1/1) ... [2021-10-13 00:56:18,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:56:18,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:56:18,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:56:18,532 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:56:18,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:18" (1/1) ... [2021-10-13 00:56:18,542 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:56:18,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad8d389-4a23-48bf-bade-f44e0333fab1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:56:18,602 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad8d389-4a23-48bf-bade-f44e0333fab1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:56:18,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad8d389-4a23-48bf-bade-f44e0333fab1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:56:18,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:56:18,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:56:18,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:56:18,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:56:19,552 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:56:19,553 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-10-13 00:56:19,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:56:19 BoogieIcfgContainer [2021-10-13 00:56:19,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:56:19,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:56:19,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:56:19,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:56:19,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:56:17" (1/3) ... [2021-10-13 00:56:19,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a2b8119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:56:19, skipping insertion in model container [2021-10-13 00:56:19,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:18" (2/3) ... [2021-10-13 00:56:19,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a2b8119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:56:19, skipping insertion in model container [2021-10-13 00:56:19,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:56:19" (3/3) ... [2021-10-13 00:56:19,593 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product17.cil.c [2021-10-13 00:56:19,598 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:56:19,599 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-13 00:56:19,655 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:56:19,676 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-10-13 00:56:19,676 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-13 00:56:19,702 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) [2021-10-13 00:56:19,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 00:56:19,710 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:56:19,712 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:56:19,713 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:56:19,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:56:19,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1940604754, now seen corresponding path program 1 times [2021-10-13 00:56:19,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:56:19,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219688801] [2021-10-13 00:56:19,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:56:19,732 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:56:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:56:20,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:56:20,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:56:20,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219688801] [2021-10-13 00:56:20,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219688801] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:56:20,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:56:20,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:56:20,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537420209] [2021-10-13 00:56:20,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 00:56:20,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:56:20,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 00:56:20,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:56:20,166 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) [2021-10-13 00:56:20,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:56:20,197 INFO L93 Difference]: Finished difference Result 156 states and 233 transitions. [2021-10-13 00:56:20,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 00:56:20,199 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 [2021-10-13 00:56:20,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:56:20,211 INFO L225 Difference]: With dead ends: 156 [2021-10-13 00:56:20,211 INFO L226 Difference]: Without dead ends: 77 [2021-10-13 00:56:20,215 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 [2021-10-13 00:56:20,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-10-13 00:56:20,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-10-13 00:56:20,257 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) [2021-10-13 00:56:20,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2021-10-13 00:56:20,261 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 108 transitions. Word has length 18 [2021-10-13 00:56:20,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:56:20,262 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 108 transitions. [2021-10-13 00:56:20,262 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) [2021-10-13 00:56:20,262 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 108 transitions. [2021-10-13 00:56:20,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 00:56:20,264 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:56:20,264 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:56:20,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:56:20,265 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:56:20,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:56:20,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1815937872, now seen corresponding path program 1 times [2021-10-13 00:56:20,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:56:20,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639294596] [2021-10-13 00:56:20,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:56:20,267 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:56:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:56:20,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:56:20,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:56:20,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639294596] [2021-10-13 00:56:20,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639294596] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:56:20,415 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:56:20,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:56:20,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640373264] [2021-10-13 00:56:20,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:56:20,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:56:20,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:56:20,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:56:20,423 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) [2021-10-13 00:56:20,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:56:20,439 INFO L93 Difference]: Finished difference Result 77 states and 108 transitions. [2021-10-13 00:56:20,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:56:20,444 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 [2021-10-13 00:56:20,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:56:20,446 INFO L225 Difference]: With dead ends: 77 [2021-10-13 00:56:20,446 INFO L226 Difference]: Without dead ends: 35 [2021-10-13 00:56:20,447 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:56:20,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-13 00:56:20,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-13 00:56:20,452 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) [2021-10-13 00:56:20,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2021-10-13 00:56:20,454 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2021-10-13 00:56:20,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:56:20,454 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2021-10-13 00:56:20,455 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) [2021-10-13 00:56:20,455 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2021-10-13 00:56:20,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 00:56:20,456 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:56:20,457 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] [2021-10-13 00:56:20,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:56:20,457 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:56:20,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:56:20,458 INFO L82 PathProgramCache]: Analyzing trace with hash -163835793, now seen corresponding path program 1 times [2021-10-13 00:56:20,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:56:20,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106369814] [2021-10-13 00:56:20,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:56:20,459 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:56:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:56:20,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:56:20,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:56:20,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106369814] [2021-10-13 00:56:20,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106369814] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:56:20,647 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:56:20,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:56:20,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111296567] [2021-10-13 00:56:20,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 00:56:20,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:56:20,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:56:20,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:56:20,660 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand has 6 states, 6 states have (on average 4.0) 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) [2021-10-13 00:56:20,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:56:20,858 INFO L93 Difference]: Finished difference Result 64 states and 92 transitions. [2021-10-13 00:56:20,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:56:20,859 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) 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 [2021-10-13 00:56:20,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:56:20,861 INFO L225 Difference]: With dead ends: 64 [2021-10-13 00:56:20,861 INFO L226 Difference]: Without dead ends: 35 [2021-10-13 00:56:20,862 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.4ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:56:20,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-13 00:56:20,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-13 00:56:20,872 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) [2021-10-13 00:56:20,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2021-10-13 00:56:20,874 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 24 [2021-10-13 00:56:20,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:56:20,874 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2021-10-13 00:56:20,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) 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) [2021-10-13 00:56:20,875 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2021-10-13 00:56:20,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 00:56:20,876 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:56:20,876 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] [2021-10-13 00:56:20,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 00:56:20,876 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:56:20,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:56:20,877 INFO L82 PathProgramCache]: Analyzing trace with hash 993963754, now seen corresponding path program 1 times [2021-10-13 00:56:20,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:56:20,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585140057] [2021-10-13 00:56:20,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:56:20,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:56:20,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:56:21,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:56:21,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:56:21,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585140057] [2021-10-13 00:56:21,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585140057] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:56:21,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:56:21,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:56:21,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884625935] [2021-10-13 00:56:21,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:56:21,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:56:21,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:56:21,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:56:21,070 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) [2021-10-13 00:56:21,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:56:21,241 INFO L93 Difference]: Finished difference Result 172 states and 255 transitions. [2021-10-13 00:56:21,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:56:21,242 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 [2021-10-13 00:56:21,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:56:21,249 INFO L225 Difference]: With dead ends: 172 [2021-10-13 00:56:21,250 INFO L226 Difference]: Without dead ends: 143 [2021-10-13 00:56:21,251 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 34.4ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:56:21,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-10-13 00:56:21,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 60. [2021-10-13 00:56:21,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 59 states have internal predecessors, (83), 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) [2021-10-13 00:56:21,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 83 transitions. [2021-10-13 00:56:21,284 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 83 transitions. Word has length 25 [2021-10-13 00:56:21,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:56:21,284 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 83 transitions. [2021-10-13 00:56:21,284 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) [2021-10-13 00:56:21,285 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 83 transitions. [2021-10-13 00:56:21,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 00:56:21,293 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:56:21,293 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] [2021-10-13 00:56:21,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 00:56:21,294 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:56:21,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:56:21,294 INFO L82 PathProgramCache]: Analyzing trace with hash -965345236, now seen corresponding path program 1 times [2021-10-13 00:56:21,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:56:21,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452906663] [2021-10-13 00:56:21,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:56:21,295 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:56:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:56:21,435 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:56:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:56:21,569 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:56:21,569 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:56:21,570 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:56:21,573 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:56:21,573 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:56:21,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 00:56:21,581 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:56:21,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:56:21 BoogieIcfgContainer [2021-10-13 00:56:21,681 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:56:21,682 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:56:21,682 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:56:21,682 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:56:21,683 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:56:19" (3/4) ... [2021-10-13 00:56:21,685 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 00:56:21,808 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad8d389-4a23-48bf-bade-f44e0333fab1/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:56:21,809 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:56:21,811 INFO L168 Benchmark]: Toolchain (without parser) took 4060.50 ms. Allocated memory was 113.2 MB in the beginning and 144.7 MB in the end (delta: 31.5 MB). Free memory was 79.2 MB in the beginning and 118.7 MB in the end (delta: -39.6 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:56:21,812 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 75.5 MB. Free memory was 49.8 MB in the beginning and 49.8 MB in the end (delta: 27.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:56:21,813 INFO L168 Benchmark]: CACSL2BoogieTranslator took 616.03 ms. Allocated memory is still 113.2 MB. Free memory was 79.2 MB in the beginning and 83.1 MB in the end (delta: -3.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:56:21,814 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.39 ms. Allocated memory is still 113.2 MB. Free memory was 83.1 MB in the beginning and 79.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:56:21,814 INFO L168 Benchmark]: Boogie Preprocessor took 65.80 ms. Allocated memory is still 113.2 MB. Free memory was 79.8 MB in the beginning and 77.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:56:21,815 INFO L168 Benchmark]: RCFGBuilder took 1024.01 ms. Allocated memory is still 113.2 MB. Free memory was 77.6 MB in the beginning and 37.9 MB in the end (delta: 39.7 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:56:21,815 INFO L168 Benchmark]: TraceAbstraction took 2123.94 ms. Allocated memory is still 113.2 MB. Free memory was 37.5 MB in the beginning and 47.5 MB in the end (delta: -9.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:56:21,816 INFO L168 Benchmark]: Witness Printer took 126.78 ms. Allocated memory was 113.2 MB in the beginning and 144.7 MB in the end (delta: 31.5 MB). Free memory was 47.5 MB in the beginning and 118.7 MB in the end (delta: -71.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:56:21,819 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 75.5 MB. Free memory was 49.8 MB in the beginning and 49.8 MB in the end (delta: 27.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 616.03 ms. Allocated memory is still 113.2 MB. Free memory was 79.2 MB in the beginning and 83.1 MB in the end (delta: -3.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 93.39 ms. Allocated memory is still 113.2 MB. Free memory was 83.1 MB in the beginning and 79.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.80 ms. Allocated memory is still 113.2 MB. Free memory was 79.8 MB in the beginning and 77.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1024.01 ms. Allocated memory is still 113.2 MB. Free memory was 77.6 MB in the beginning and 37.9 MB in the end (delta: 39.7 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2123.94 ms. Allocated memory is still 113.2 MB. Free memory was 37.5 MB in the beginning and 47.5 MB in the end (delta: -9.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 126.78 ms. Allocated memory was 113.2 MB in the beginning and 144.7 MB in the end (delta: 31.5 MB). Free memory was 47.5 MB in the beginning and 118.7 MB in the end (delta: -71.3 MB). Peak memory consumption was 14.2 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: 508]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L415] int waterLevel = 1; [L416] int methaneLevelCritical = 0; [L584] int pumpRunning = 0; [L585] int systemActive = 1; [L737] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L813] int retValue_acc ; [L814] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L862] int retValue_acc ; [L865] retValue_acc = 1 [L866] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L820] tmp = valid_product() [L822] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L516] int splverifierCounter ; [L517] int tmp ; [L518] int tmp___0 ; [L519] int tmp___1 ; [L520] int tmp___2 ; [L523] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L525] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L527] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L533] tmp = __VERIFIER_nondet_int() [L535] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L433] COND TRUE waterLevel < 2 [L434] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L543] tmp___0 = __VERIFIER_nondet_int() [L545] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L553] tmp___2 = __VERIFIER_nondet_int() [L555] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L592] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L599] COND TRUE \read(systemActive) [L621] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L624] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L872] int tmp ; [L873] int tmp___0 ; [L874] int tmp___1 ; [L454] int retValue_acc ; [L457] retValue_acc = methaneLevelCritical [L458] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L878] tmp = isMethaneLevelCritical() [L880] COND FALSE !(\read(tmp)) [L486] int retValue_acc ; [L489] retValue_acc = waterLevel [L490] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L884] tmp___0 = getWaterLevel() [L886] COND TRUE tmp___0 == 2 [L673] int retValue_acc ; [L676] retValue_acc = pumpRunning [L677] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L888] tmp___1 = isPumpRunning() [L890] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L508] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - UnprovableResult [Line: 508]: 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: 508]: 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: 1925.3ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 25.5ms, AutomataDifference: 489.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 20.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 279 SDtfs, 369 SDslu, 185 SDs, 0 SdLazy, 48 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 205.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 89.8ms 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: 80.1ms AutomataMinimizationTime, 4 MinimizatonAttempts, 83 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 51.4ms SsaConstructionTime, 452.0ms SatisfiabilityAnalysisTime, 444.8ms InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 169 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! [2021-10-13 00:56:21,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad8d389-4a23-48bf-bade-f44e0333fab1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...