./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12032bb9-5f34-49c3-8546-fd3d9a7d33ea/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12032bb9-5f34-49c3-8546-fd3d9a7d33ea/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12032bb9-5f34-49c3-8546-fd3d9a7d33ea/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12032bb9-5f34-49c3-8546-fd3d9a7d33ea/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12032bb9-5f34-49c3-8546-fd3d9a7d33ea/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12032bb9-5f34-49c3-8546-fd3d9a7d33ea/bin/uautomizer-Z5i5R5N3CC --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 1d28fd66952ef369b293b454cf3bb59a162528dc ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.2.0-7b2dab5 [2021-10-11 00:33:50,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:33:50,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:33:50,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:33:50,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:33:50,498 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:33:50,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:33:50,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:33:50,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:33:50,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:33:50,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:33:50,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:33:50,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:33:50,514 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:33:50,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:33:50,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:33:50,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:33:50,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:33:50,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:33:50,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:33:50,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:33:50,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:33:50,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:33:50,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:33:50,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:33:50,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:33:50,563 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:33:50,565 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:33:50,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:33:50,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:33:50,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:33:50,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:33:50,573 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:33:50,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:33:50,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:33:50,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:33:50,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:33:50,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:33:50,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:33:50,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:33:50,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:33:50,583 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12032bb9-5f34-49c3-8546-fd3d9a7d33ea/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:33:50,633 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:33:50,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:33:50,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:33:50,637 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:33:50,637 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:33:50,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:33:50,638 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:33:50,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:33:50,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:33:50,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:33:50,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:33:50,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:33:50,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:33:50,650 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:33:50,651 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:33:50,651 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:33:50,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:33:50,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:33:50,652 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:33:50,652 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:33:50,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:33:50,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:33:50,653 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:33:50,653 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:33:50,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:33:50,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:33:50,654 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:33:50,654 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:33:50,655 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_12032bb9-5f34-49c3-8546-fd3d9a7d33ea/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12032bb9-5f34-49c3-8546-fd3d9a7d33ea/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d28fd66952ef369b293b454cf3bb59a162528dc [2021-10-11 00:33:51,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:33:51,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:33:51,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:33:51,031 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:33:51,039 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:33:51,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12032bb9-5f34-49c3-8546-fd3d9a7d33ea/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c [2021-10-11 00:33:51,117 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12032bb9-5f34-49c3-8546-fd3d9a7d33ea/bin/uautomizer-Z5i5R5N3CC/data/2b001047e/7fd43a712ef247678d1daf874a9be69d/FLAGdb33788f6 [2021-10-11 00:33:51,671 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:33:51,672 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12032bb9-5f34-49c3-8546-fd3d9a7d33ea/sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c [2021-10-11 00:33:51,691 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12032bb9-5f34-49c3-8546-fd3d9a7d33ea/bin/uautomizer-Z5i5R5N3CC/data/2b001047e/7fd43a712ef247678d1daf874a9be69d/FLAGdb33788f6 [2021-10-11 00:33:51,977 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12032bb9-5f34-49c3-8546-fd3d9a7d33ea/bin/uautomizer-Z5i5R5N3CC/data/2b001047e/7fd43a712ef247678d1daf874a9be69d [2021-10-11 00:33:51,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:33:51,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:33:51,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:33:51,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:33:51,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:33:51,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:33:51" (1/1) ... [2021-10-11 00:33:52,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b679c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:52, skipping insertion in model container [2021-10-11 00:33:52,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:33:51" (1/1) ... [2021-10-11 00:33:52,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:33:52,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:33:52,359 WARN L226 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_12032bb9-5f34-49c3-8546-fd3d9a7d33ea/sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c[13860,13873] [2021-10-11 00:33:52,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:33:52,415 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:33:52,493 WARN L226 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_12032bb9-5f34-49c3-8546-fd3d9a7d33ea/sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c[13860,13873] [2021-10-11 00:33:52,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:33:52,541 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:33:52,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:52 WrapperNode [2021-10-11 00:33:52,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:33:52,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:33:52,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:33:52,545 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:33:52,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:52" (1/1) ... [2021-10-11 00:33:52,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:52" (1/1) ... [2021-10-11 00:33:52,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:33:52,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:33:52,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:33:52,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:33:52,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:52" (1/1) ... [2021-10-11 00:33:52,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:52" (1/1) ... [2021-10-11 00:33:52,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:52" (1/1) ... [2021-10-11 00:33:52,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:52" (1/1) ... [2021-10-11 00:33:52,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:52" (1/1) ... [2021-10-11 00:33:52,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:52" (1/1) ... [2021-10-11 00:33:52,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:52" (1/1) ... [2021-10-11 00:33:52,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:33:52,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:33:52,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:33:52,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:33:52,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:52" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12032bb9-5f34-49c3-8546-fd3d9a7d33ea/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:33:52,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:33:52,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:33:52,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:33:52,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:33:53,535 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:33:53,536 INFO L299 CfgBuilder]: Removed 78 assume(true) statements. [2021-10-11 00:33:53,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:53 BoogieIcfgContainer [2021-10-11 00:33:53,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:33:53,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:33:53,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:33:53,542 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:33:53,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:33:51" (1/3) ... [2021-10-11 00:33:53,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bfd9460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:33:53, skipping insertion in model container [2021-10-11 00:33:53,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:52" (2/3) ... [2021-10-11 00:33:53,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bfd9460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:33:53, skipping insertion in model container [2021-10-11 00:33:53,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:53" (3/3) ... [2021-10-11 00:33:53,546 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product04.cil.c [2021-10-11 00:33:53,581 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:33:53,591 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 00:33:53,625 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 00:33:53,665 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:33:53,665 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:33:53,666 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:33:53,666 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:33:53,667 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:33:53,667 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:33:53,667 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:33:53,667 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:33:53,685 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2021-10-11 00:33:53,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 00:33:53,692 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:53,693 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:53,693 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:53,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:53,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1390476085, now seen corresponding path program 1 times [2021-10-11 00:33:53,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:53,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056303752] [2021-10-11 00:33:53,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:53,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:53,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056303752] [2021-10-11 00:33:53,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:53,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:33:53,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873333747] [2021-10-11 00:33:53,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:33:53,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:54,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:33:54,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:33:54,003 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 2 states. [2021-10-11 00:33:54,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:54,030 INFO L93 Difference]: Finished difference Result 124 states and 185 transitions. [2021-10-11 00:33:54,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:33:54,032 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2021-10-11 00:33:54,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:54,043 INFO L225 Difference]: With dead ends: 124 [2021-10-11 00:33:54,044 INFO L226 Difference]: Without dead ends: 61 [2021-10-11 00:33:54,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:33:54,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-10-11 00:33:54,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-10-11 00:33:54,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2021-10-11 00:33:54,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 84 transitions. [2021-10-11 00:33:54,091 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 84 transitions. Word has length 18 [2021-10-11 00:33:54,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:54,092 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 84 transitions. [2021-10-11 00:33:54,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:33:54,092 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 84 transitions. [2021-10-11 00:33:54,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 00:33:54,094 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:54,094 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:54,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:33:54,095 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:54,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:54,096 INFO L82 PathProgramCache]: Analyzing trace with hash -963834589, now seen corresponding path program 1 times [2021-10-11 00:33:54,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:54,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549746582] [2021-10-11 00:33:54,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:54,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:54,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549746582] [2021-10-11 00:33:54,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:54,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:33:54,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841833314] [2021-10-11 00:33:54,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:33:54,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:54,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:33:54,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:33:54,208 INFO L87 Difference]: Start difference. First operand 61 states and 84 transitions. Second operand 3 states. [2021-10-11 00:33:54,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:54,218 INFO L93 Difference]: Finished difference Result 61 states and 84 transitions. [2021-10-11 00:33:54,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:33:54,219 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-10-11 00:33:54,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:54,220 INFO L225 Difference]: With dead ends: 61 [2021-10-11 00:33:54,220 INFO L226 Difference]: Without dead ends: 31 [2021-10-11 00:33:54,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:33:54,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-11 00:33:54,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-11 00:33:54,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-10-11 00:33:54,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2021-10-11 00:33:54,227 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 19 [2021-10-11 00:33:54,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:54,228 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2021-10-11 00:33:54,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:33:54,229 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2021-10-11 00:33:54,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 00:33:54,230 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:54,231 INFO L422 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] [2021-10-11 00:33:54,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:33:54,232 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:54,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:54,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1411810197, now seen corresponding path program 1 times [2021-10-11 00:33:54,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:54,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996728280] [2021-10-11 00:33:54,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:54,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:54,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996728280] [2021-10-11 00:33:54,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:54,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:33:54,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735725249] [2021-10-11 00:33:54,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:33:54,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:54,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:33:54,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:33:54,424 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand 5 states. [2021-10-11 00:33:54,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:54,539 INFO L93 Difference]: Finished difference Result 81 states and 117 transitions. [2021-10-11 00:33:54,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:33:54,543 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2021-10-11 00:33:54,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:54,544 INFO L225 Difference]: With dead ends: 81 [2021-10-11 00:33:54,545 INFO L226 Difference]: Without dead ends: 56 [2021-10-11 00:33:54,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:33:54,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-10-11 00:33:54,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2021-10-11 00:33:54,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2021-10-11 00:33:54,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 75 transitions. [2021-10-11 00:33:54,564 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 75 transitions. Word has length 24 [2021-10-11 00:33:54,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:54,565 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 75 transitions. [2021-10-11 00:33:54,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:33:54,566 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2021-10-11 00:33:54,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 00:33:54,567 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:54,567 INFO L422 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] [2021-10-11 00:33:54,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:33:54,568 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:54,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:54,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1755761006, now seen corresponding path program 1 times [2021-10-11 00:33:54,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:54,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553921378] [2021-10-11 00:33:54,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:54,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:54,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:54,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553921378] [2021-10-11 00:33:54,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:54,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:33:54,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516923492] [2021-10-11 00:33:54,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:33:54,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:54,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:33:54,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:33:54,735 INFO L87 Difference]: Start difference. First operand 52 states and 75 transitions. Second operand 5 states. [2021-10-11 00:33:54,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:54,893 INFO L93 Difference]: Finished difference Result 264 states and 404 transitions. [2021-10-11 00:33:54,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:33:54,894 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2021-10-11 00:33:54,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:54,901 INFO L225 Difference]: With dead ends: 264 [2021-10-11 00:33:54,901 INFO L226 Difference]: Without dead ends: 218 [2021-10-11 00:33:54,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:33:54,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-10-11 00:33:54,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 92. [2021-10-11 00:33:54,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2021-10-11 00:33:54,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 131 transitions. [2021-10-11 00:33:54,937 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 131 transitions. Word has length 24 [2021-10-11 00:33:54,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:54,938 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 131 transitions. [2021-10-11 00:33:54,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:33:54,939 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 131 transitions. [2021-10-11 00:33:54,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 00:33:54,941 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:54,941 INFO L422 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] [2021-10-11 00:33:54,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:33:54,941 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:54,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:54,942 INFO L82 PathProgramCache]: Analyzing trace with hash 120698128, now seen corresponding path program 1 times [2021-10-11 00:33:54,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:54,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195975021] [2021-10-11 00:33:54,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:33:55,056 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:33:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:33:55,150 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:33:55,206 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:33:55,206 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:33:55,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:33:55,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:33:55 BoogieIcfgContainer [2021-10-11 00:33:55,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:33:55,351 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:33:55,351 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:33:55,352 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:33:55,352 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:53" (3/4) ... [2021-10-11 00:33:55,355 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:33:55,468 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12032bb9-5f34-49c3-8546-fd3d9a7d33ea/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:33:55,469 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:33:55,471 INFO L168 Benchmark]: Toolchain (without parser) took 3487.63 ms. Allocated memory was 81.8 MB in the beginning and 134.2 MB in the end (delta: 52.4 MB). Free memory was 41.9 MB in the beginning and 91.1 MB in the end (delta: -49.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:55,471 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 81.8 MB. Free memory was 58.8 MB in the beginning and 58.8 MB in the end (delta: 41.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:33:55,472 INFO L168 Benchmark]: CACSL2BoogieTranslator took 549.04 ms. Allocated memory was 81.8 MB in the beginning and 111.1 MB in the end (delta: 29.4 MB). Free memory was 41.7 MB in the beginning and 76.0 MB in the end (delta: -34.3 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:55,473 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.09 ms. Allocated memory is still 111.1 MB. Free memory was 75.5 MB in the beginning and 72.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:55,473 INFO L168 Benchmark]: Boogie Preprocessor took 86.87 ms. Allocated memory is still 111.1 MB. Free memory was 72.8 MB in the beginning and 70.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:55,474 INFO L168 Benchmark]: RCFGBuilder took 833.20 ms. Allocated memory is still 111.1 MB. Free memory was 70.7 MB in the beginning and 66.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:55,475 INFO L168 Benchmark]: TraceAbstraction took 1811.61 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 66.8 MB in the beginning and 101.6 MB in the end (delta: -34.8 MB). Peak memory consumption was 41.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:55,475 INFO L168 Benchmark]: Witness Printer took 117.62 ms. Allocated memory is still 134.2 MB. Free memory was 101.6 MB in the beginning and 91.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:55,479 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 81.8 MB. Free memory was 58.8 MB in the beginning and 58.8 MB in the end (delta: 41.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 549.04 ms. Allocated memory was 81.8 MB in the beginning and 111.1 MB in the end (delta: 29.4 MB). Free memory was 41.7 MB in the beginning and 76.0 MB in the end (delta: -34.3 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.09 ms. Allocated memory is still 111.1 MB. Free memory was 75.5 MB in the beginning and 72.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.87 ms. Allocated memory is still 111.1 MB. Free memory was 72.8 MB in the beginning and 70.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 833.20 ms. Allocated memory is still 111.1 MB. Free memory was 70.7 MB in the beginning and 66.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1811.61 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 66.8 MB in the beginning and 101.6 MB in the end (delta: -34.8 MB). Peak memory consumption was 41.7 MB. Max. memory is 16.1 GB. * Witness Printer took 117.62 ms. Allocated memory is still 134.2 MB. Free memory was 101.6 MB in the beginning and 91.1 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: - CounterExampleResult [Line: 635]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L297] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L532] int cleanupTimeShifts = 4; [L679] int pumpRunning = 0; [L680] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L608] int retValue_acc ; [L609] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L523] int retValue_acc ; [L526] retValue_acc = 1 [L527] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L615] tmp = valid_product() [L617] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L810] int splverifierCounter ; [L811] int tmp ; [L812] int tmp___0 ; [L813] int tmp___1 ; [L814] int tmp___2 ; [L817] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L819] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L821] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L827] tmp = __VERIFIER_nondet_int() [L829] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L837] tmp___0 = __VERIFIER_nondet_int() [L839] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L847] tmp___2 = __VERIFIER_nondet_int() [L849] COND TRUE \read(tmp___2) [L804] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L686] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L693] COND TRUE \read(systemActive) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L642] int tmp ; [L643] int tmp___0 ; [L644] int tmp___1 ; [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L648] tmp = isMethaneLevelCritical() [L650] COND FALSE !(\read(tmp)) [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L654] tmp___0 = getWaterLevel() [L656] COND TRUE tmp___0 == 2 [L741] int retValue_acc ; [L744] retValue_acc = pumpRunning [L745] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L658] tmp___1 = isPumpRunning() [L660] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L635] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 65 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 236 SDtfs, 382 SDslu, 200 SDs, 0 SdLazy, 41 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 130 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 2893 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! Received shutdown request...