./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_409c07eb-595f-416a-b5c8-ab309df9c122/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_409c07eb-595f-416a-b5c8-ab309df9c122/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_409c07eb-595f-416a-b5c8-ab309df9c122/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_409c07eb-595f-416a-b5c8-ab309df9c122/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_409c07eb-595f-416a-b5c8-ab309df9c122/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_409c07eb-595f-416a-b5c8-ab309df9c122/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 07b1c242ee38ca5843c5ca9be19cecfe3ff6bd0c .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-cad4683 [2019-10-22 11:23:50,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:23:50,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:23:50,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:23:50,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:23:50,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:23:50,522 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:23:50,524 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:23:50,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:23:50,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:23:50,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:23:50,532 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:23:50,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:23:50,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:23:50,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:23:50,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:23:50,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:23:50,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:23:50,542 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:23:50,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:23:50,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:23:50,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:23:50,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:23:50,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:23:50,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:23:50,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:23:50,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:23:50,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:23:50,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:23:50,558 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:23:50,558 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:23:50,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:23:50,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:23:50,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:23:50,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:23:50,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:23:50,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:23:50,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:23:50,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:23:50,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:23:50,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:23:50,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_409c07eb-595f-416a-b5c8-ab309df9c122/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:23:50,589 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:23:50,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:23:50,592 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:23:50,592 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:23:50,592 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:23:50,592 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:23:50,592 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:23:50,593 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:23:50,593 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:23:50,593 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:23:50,593 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:23:50,593 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:23:50,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:23:50,594 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:23:50,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:23:50,594 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:23:50,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:23:50,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:23:50,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:23:50,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:23:50,595 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:23:50,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:23:50,595 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:23:50,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:23:50,597 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:23:50,597 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:23:50,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:23:50,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:50,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:23:50,597 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:23:50,597 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:23:50,598 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:23:50,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:23:50,598 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:23:50,598 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:23:50,598 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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-vcloud-master/worker/working_dir_409c07eb-595f-416a-b5c8-ab309df9c122/bin/utaipan 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(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan 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 -> 07b1c242ee38ca5843c5ca9be19cecfe3ff6bd0c [2019-10-22 11:23:50,631 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:23:50,642 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:23:50,645 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:23:50,646 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:23:50,647 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:23:50,647 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_409c07eb-595f-416a-b5c8-ab309df9c122/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c [2019-10-22 11:23:50,694 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_409c07eb-595f-416a-b5c8-ab309df9c122/bin/utaipan/data/0b0ac5ced/4cb59bb3fb3d4d5994e8414cc41f74e1/FLAGd139e3f6e [2019-10-22 11:23:51,115 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:23:51,117 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_409c07eb-595f-416a-b5c8-ab309df9c122/sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c [2019-10-22 11:23:51,131 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_409c07eb-595f-416a-b5c8-ab309df9c122/bin/utaipan/data/0b0ac5ced/4cb59bb3fb3d4d5994e8414cc41f74e1/FLAGd139e3f6e [2019-10-22 11:23:51,436 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_409c07eb-595f-416a-b5c8-ab309df9c122/bin/utaipan/data/0b0ac5ced/4cb59bb3fb3d4d5994e8414cc41f74e1 [2019-10-22 11:23:51,438 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:23:51,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:23:51,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:51,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:23:51,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:23:51,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:51" (1/1) ... [2019-10-22 11:23:51,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e5c8e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:51, skipping insertion in model container [2019-10-22 11:23:51,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:51" (1/1) ... [2019-10-22 11:23:51,456 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:23:51,495 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:23:51,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:51,834 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:23:51,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:51,983 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:23:51,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:51 WrapperNode [2019-10-22 11:23:51,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:51,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:51,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:23:51,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:23:51,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:51" (1/1) ... [2019-10-22 11:23:52,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:51" (1/1) ... [2019-10-22 11:23:52,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:52,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:23:52,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:23:52,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:23:52,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:51" (1/1) ... [2019-10-22 11:23:52,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:51" (1/1) ... [2019-10-22 11:23:52,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:51" (1/1) ... [2019-10-22 11:23:52,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:51" (1/1) ... [2019-10-22 11:23:52,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:51" (1/1) ... [2019-10-22 11:23:52,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:51" (1/1) ... [2019-10-22 11:23:52,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:51" (1/1) ... [2019-10-22 11:23:52,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:23:52,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:23:52,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:23:52,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:23:52,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_409c07eb-595f-416a-b5c8-ab309df9c122/bin/utaipan/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 [2019-10-22 11:23:52,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:23:52,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:23:52,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:23:52,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:23:53,332 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:23:53,332 INFO L284 CfgBuilder]: Removed 286 assume(true) statements. [2019-10-22 11:23:53,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:53 BoogieIcfgContainer [2019-10-22 11:23:53,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:23:53,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:23:53,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:23:53,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:23:53,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:23:51" (1/3) ... [2019-10-22 11:23:53,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463c1328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:53, skipping insertion in model container [2019-10-22 11:23:53,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:51" (2/3) ... [2019-10-22 11:23:53,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463c1328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:53, skipping insertion in model container [2019-10-22 11:23:53,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:53" (3/3) ... [2019-10-22 11:23:53,357 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product55.cil.c [2019-10-22 11:23:53,367 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:23:53,374 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:23:53,406 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:23:53,454 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:23:53,454 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:23:53,454 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:23:53,454 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:23:53,454 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:23:53,455 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:23:53,455 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:23:53,455 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:23:53,491 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2019-10-22 11:23:53,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 11:23:53,511 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:53,512 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:53,514 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:53,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:53,532 INFO L82 PathProgramCache]: Analyzing trace with hash -477478196, now seen corresponding path program 1 times [2019-10-22 11:23:53,541 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:53,541 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126078622] [2019-10-22 11:23:53,542 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:53,542 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:53,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:53,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:53,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:53,800 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126078622] [2019-10-22 11:23:53,801 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:53,802 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:23:53,803 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989016937] [2019-10-22 11:23:53,807 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:23:53,809 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:53,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:23:53,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:23:53,824 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 2 states. [2019-10-22 11:23:53,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:53,876 INFO L93 Difference]: Finished difference Result 388 states and 593 transitions. [2019-10-22 11:23:53,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:23:53,877 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-22 11:23:53,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:53,891 INFO L225 Difference]: With dead ends: 388 [2019-10-22 11:23:53,892 INFO L226 Difference]: Without dead ends: 193 [2019-10-22 11:23:53,896 INFO L600 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 [2019-10-22 11:23:53,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-10-22 11:23:53,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2019-10-22 11:23:53,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-10-22 11:23:53,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 288 transitions. [2019-10-22 11:23:53,963 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 288 transitions. Word has length 18 [2019-10-22 11:23:53,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:53,963 INFO L462 AbstractCegarLoop]: Abstraction has 193 states and 288 transitions. [2019-10-22 11:23:53,964 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:23:53,964 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 288 transitions. [2019-10-22 11:23:53,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:23:53,965 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:53,965 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:53,966 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:53,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:53,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1388508949, now seen corresponding path program 1 times [2019-10-22 11:23:53,966 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:53,967 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819296501] [2019-10-22 11:23:53,967 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:53,967 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:53,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:54,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:54,130 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819296501] [2019-10-22 11:23:54,130 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:54,130 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:23:54,130 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789265511] [2019-10-22 11:23:54,133 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:54,136 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:54,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:54,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:54,137 INFO L87 Difference]: Start difference. First operand 193 states and 288 transitions. Second operand 3 states. [2019-10-22 11:23:54,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:54,153 INFO L93 Difference]: Finished difference Result 193 states and 288 transitions. [2019-10-22 11:23:54,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:54,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 11:23:54,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:54,155 INFO L225 Difference]: With dead ends: 193 [2019-10-22 11:23:54,155 INFO L226 Difference]: Without dead ends: 75 [2019-10-22 11:23:54,156 INFO L600 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 [2019-10-22 11:23:54,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-10-22 11:23:54,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2019-10-22 11:23:54,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-10-22 11:23:54,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 111 transitions. [2019-10-22 11:23:54,164 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 111 transitions. Word has length 19 [2019-10-22 11:23:54,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:54,164 INFO L462 AbstractCegarLoop]: Abstraction has 75 states and 111 transitions. [2019-10-22 11:23:54,164 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:54,165 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 111 transitions. [2019-10-22 11:23:54,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 11:23:54,165 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:54,165 INFO L380 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] [2019-10-22 11:23:54,166 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:54,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:54,166 INFO L82 PathProgramCache]: Analyzing trace with hash -521457096, now seen corresponding path program 1 times [2019-10-22 11:23:54,166 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:54,167 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848830861] [2019-10-22 11:23:54,167 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:54,167 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:54,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:54,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:54,221 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848830861] [2019-10-22 11:23:54,221 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:54,221 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:23:54,221 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521936146] [2019-10-22 11:23:54,222 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:54,222 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:54,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:54,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:54,222 INFO L87 Difference]: Start difference. First operand 75 states and 111 transitions. Second operand 3 states. [2019-10-22 11:23:54,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:54,245 INFO L93 Difference]: Finished difference Result 213 states and 321 transitions. [2019-10-22 11:23:54,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:54,246 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-22 11:23:54,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:54,249 INFO L225 Difference]: With dead ends: 213 [2019-10-22 11:23:54,249 INFO L226 Difference]: Without dead ends: 144 [2019-10-22 11:23:54,250 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:54,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-10-22 11:23:54,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 140. [2019-10-22 11:23:54,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-10-22 11:23:54,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 211 transitions. [2019-10-22 11:23:54,271 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 211 transitions. Word has length 24 [2019-10-22 11:23:54,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:54,271 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 211 transitions. [2019-10-22 11:23:54,271 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:54,278 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 211 transitions. [2019-10-22 11:23:54,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:23:54,279 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:54,279 INFO L380 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, 1] [2019-10-22 11:23:54,280 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:54,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:54,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1870578463, now seen corresponding path program 1 times [2019-10-22 11:23:54,280 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:54,281 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369632434] [2019-10-22 11:23:54,281 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:54,281 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:54,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:54,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:54,349 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369632434] [2019-10-22 11:23:54,349 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:54,349 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:23:54,349 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214065765] [2019-10-22 11:23:54,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:54,350 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:54,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:54,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:54,351 INFO L87 Difference]: Start difference. First operand 140 states and 211 transitions. Second operand 3 states. [2019-10-22 11:23:54,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:54,413 INFO L93 Difference]: Finished difference Result 295 states and 448 transitions. [2019-10-22 11:23:54,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:54,414 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-10-22 11:23:54,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:54,416 INFO L225 Difference]: With dead ends: 295 [2019-10-22 11:23:54,416 INFO L226 Difference]: Without dead ends: 161 [2019-10-22 11:23:54,417 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:54,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2019-10-22 11:23:54,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 159. [2019-10-22 11:23:54,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-10-22 11:23:54,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 231 transitions. [2019-10-22 11:23:54,435 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 231 transitions. Word has length 27 [2019-10-22 11:23:54,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:54,435 INFO L462 AbstractCegarLoop]: Abstraction has 159 states and 231 transitions. [2019-10-22 11:23:54,435 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:54,436 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 231 transitions. [2019-10-22 11:23:54,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:23:54,437 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:54,437 INFO L380 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, 1] [2019-10-22 11:23:54,437 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:54,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:54,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1382032589, now seen corresponding path program 1 times [2019-10-22 11:23:54,438 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:54,438 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538812080] [2019-10-22 11:23:54,438 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:54,439 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:54,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:54,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:54,505 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538812080] [2019-10-22 11:23:54,505 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:54,505 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:23:54,506 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372292246] [2019-10-22 11:23:54,506 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:23:54,506 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:54,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:23:54,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:54,507 INFO L87 Difference]: Start difference. First operand 159 states and 231 transitions. Second operand 5 states. [2019-10-22 11:23:54,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:54,682 INFO L93 Difference]: Finished difference Result 809 states and 1191 transitions. [2019-10-22 11:23:54,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:23:54,683 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-10-22 11:23:54,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:54,686 INFO L225 Difference]: With dead ends: 809 [2019-10-22 11:23:54,686 INFO L226 Difference]: Without dead ends: 656 [2019-10-22 11:23:54,687 INFO L600 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 [2019-10-22 11:23:54,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2019-10-22 11:23:54,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 252. [2019-10-22 11:23:54,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2019-10-22 11:23:54,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 356 transitions. [2019-10-22 11:23:54,718 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 356 transitions. Word has length 27 [2019-10-22 11:23:54,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:54,718 INFO L462 AbstractCegarLoop]: Abstraction has 252 states and 356 transitions. [2019-10-22 11:23:54,719 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:23:54,719 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 356 transitions. [2019-10-22 11:23:54,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:23:54,720 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:54,720 INFO L380 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, 1, 1] [2019-10-22 11:23:54,720 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:54,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:54,721 INFO L82 PathProgramCache]: Analyzing trace with hash -318231153, now seen corresponding path program 1 times [2019-10-22 11:23:54,721 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:54,721 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417238050] [2019-10-22 11:23:54,721 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:54,722 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:54,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:55,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:23:55,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:23:55,374 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:23:55,375 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:23:55,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:23:55 BoogieIcfgContainer [2019-10-22 11:23:55,497 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:23:55,497 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:23:55,498 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:23:55,498 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:23:55,499 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:53" (3/4) ... [2019-10-22 11:23:55,501 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 11:23:55,596 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_409c07eb-595f-416a-b5c8-ab309df9c122/bin/utaipan/witness.graphml [2019-10-22 11:23:55,599 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:23:55,601 INFO L168 Benchmark]: Toolchain (without parser) took 4160.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 210.2 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -203.2 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:55,601 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:55,601 INFO L168 Benchmark]: CACSL2BoogieTranslator took 543.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -155.6 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:55,604 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:55,604 INFO L168 Benchmark]: Boogie Preprocessor took 68.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:55,606 INFO L168 Benchmark]: RCFGBuilder took 1199.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 996.2 MB in the end (delta: 84.7 MB). Peak memory consumption was 84.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:55,606 INFO L168 Benchmark]: TraceAbstraction took 2160.34 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 95.4 MB). Free memory was 996.2 MB in the beginning and 1.2 GB in the end (delta: -159.2 MB). Peak memory consumption was 239.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:55,606 INFO L168 Benchmark]: Witness Printer took 101.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:55,608 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 543.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -155.6 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 83.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 68.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1199.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 996.2 MB in the end (delta: 84.7 MB). Peak memory consumption was 84.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2160.34 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 95.4 MB). Free memory was 996.2 MB in the beginning and 1.2 GB in the end (delta: -159.2 MB). Peak memory consumption was 239.6 MB. Max. memory is 11.5 GB. * Witness Printer took 101.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 193]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L367] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L564] int cleanupTimeShifts = 4; [L667] int pumpRunning = 0; [L668] int systemActive = 1; [L640] int retValue_acc ; [L641] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L647] tmp = valid_product() [L649] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L950] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L952] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L958] tmp = __VERIFIER_nondet_int() [L960] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L104] COND TRUE waterLevel < 2 [L105] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___2)) [L984] tmp___1 = __VERIFIER_nondet_int() [L986] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L894] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L901] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L675] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L682] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L907] int tmp ; [L908] int tmp___0 ; [L909] int tmp___1 ; [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L913] tmp = isMethaneLevelCritical() [L915] COND FALSE !(\read(tmp)) [L157] int retValue_acc ; [L160] retValue_acc = waterLevel [L161] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L919] tmp___0 = getWaterLevel() [L921] COND TRUE tmp___0 == 2 [L808] int retValue_acc ; [L811] retValue_acc = pumpRunning [L812] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L923] tmp___1 = isPumpRunning() [L925] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L193] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 197 locations, 3 error locations. Result: UNSAFE, OverallTime: 2.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 753 SDtfs, 586 SDslu, 523 SDs, 0 SdLazy, 73 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=252occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 410 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 5388 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...