./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4e0480bd-bb21-4125-8b64-63fb15565615/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4e0480bd-bb21-4125-8b64-63fb15565615/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4e0480bd-bb21-4125-8b64-63fb15565615/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4e0480bd-bb21-4125-8b64-63fb15565615/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4e0480bd-bb21-4125-8b64-63fb15565615/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4e0480bd-bb21-4125-8b64-63fb15565615/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 34d3cbbc8b4a786ebf9108ab9ac810ac8aab3a53 ............................................................................................................................................................................................................................................................................................................................ 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 0.1.24-6b5699a [2019-11-26 02:38:59,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:38:59,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:38:59,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:38:59,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:38:59,522 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:38:59,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:38:59,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:38:59,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:38:59,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:38:59,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:38:59,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:38:59,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:38:59,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:38:59,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:38:59,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:38:59,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:38:59,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:38:59,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:38:59,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:38:59,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:38:59,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:38:59,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:38:59,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:38:59,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:38:59,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:38:59,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:38:59,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:38:59,566 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:38:59,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:38:59,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:38:59,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:38:59,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:38:59,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:38:59,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:38:59,571 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:38:59,571 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:38:59,571 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:38:59,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:38:59,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:38:59,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:38:59,574 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4e0480bd-bb21-4125-8b64-63fb15565615/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:38:59,598 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:38:59,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:38:59,599 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:38:59,599 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:38:59,599 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:38:59,599 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:38:59,600 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:38:59,600 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:38:59,600 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:38:59,600 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:38:59,600 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:38:59,600 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:38:59,601 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:38:59,601 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:38:59,601 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:38:59,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:38:59,602 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:38:59,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:38:59,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:38:59,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:38:59,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:38:59,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:38:59,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:38:59,603 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:38:59,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:38:59,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:38:59,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:38:59,604 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:38:59,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:38:59,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:38:59,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:38:59,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:38:59,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:38:59,615 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:38:59,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:38:59,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:38:59,615 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:38:59,616 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/run_dir_4e0480bd-bb21-4125-8b64-63fb15565615/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 -> 34d3cbbc8b4a786ebf9108ab9ac810ac8aab3a53 [2019-11-26 02:38:59,783 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:38:59,797 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:38:59,800 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:38:59,801 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:38:59,802 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:38:59,802 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4e0480bd-bb21-4125-8b64-63fb15565615/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2019-11-26 02:38:59,863 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4e0480bd-bb21-4125-8b64-63fb15565615/bin/utaipan/data/96f07455d/db4ae78b269d4b42bec6a1ddbf9e4de7/FLAG5f50cbf75 [2019-11-26 02:39:00,281 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:39:00,281 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4e0480bd-bb21-4125-8b64-63fb15565615/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2019-11-26 02:39:00,293 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4e0480bd-bb21-4125-8b64-63fb15565615/bin/utaipan/data/96f07455d/db4ae78b269d4b42bec6a1ddbf9e4de7/FLAG5f50cbf75 [2019-11-26 02:39:00,667 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4e0480bd-bb21-4125-8b64-63fb15565615/bin/utaipan/data/96f07455d/db4ae78b269d4b42bec6a1ddbf9e4de7 [2019-11-26 02:39:00,670 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:39:00,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:39:00,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:39:00,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:39:00,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:39:00,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:39:00" (1/1) ... [2019-11-26 02:39:00,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e7e641a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:39:00, skipping insertion in model container [2019-11-26 02:39:00,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:39:00" (1/1) ... [2019-11-26 02:39:00,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:39:00,721 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:39:01,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:39:01,078 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:39:01,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:39:01,178 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:39:01,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:39:01 WrapperNode [2019-11-26 02:39:01,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:39:01,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:39:01,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:39:01,179 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:39:01,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:39:01" (1/1) ... [2019-11-26 02:39:01,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:39:01" (1/1) ... [2019-11-26 02:39:01,249 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:39:01,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:39:01,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:39:01,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:39:01,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:39:01" (1/1) ... [2019-11-26 02:39:01,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:39:01" (1/1) ... [2019-11-26 02:39:01,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:39:01" (1/1) ... [2019-11-26 02:39:01,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:39:01" (1/1) ... [2019-11-26 02:39:01,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:39:01" (1/1) ... [2019-11-26 02:39:01,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:39:01" (1/1) ... [2019-11-26 02:39:01,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:39:01" (1/1) ... [2019-11-26 02:39:01,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:39:01,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:39:01,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:39:01,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:39:01,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:39:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4e0480bd-bb21-4125-8b64-63fb15565615/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 [2019-11-26 02:39:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:39:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:39:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:39:01,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:39:03,270 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:39:03,271 INFO L284 CfgBuilder]: Removed 166 assume(true) statements. [2019-11-26 02:39:03,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:39:03 BoogieIcfgContainer [2019-11-26 02:39:03,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:39:03,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:39:03,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:39:03,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:39:03,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:39:00" (1/3) ... [2019-11-26 02:39:03,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d247dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:39:03, skipping insertion in model container [2019-11-26 02:39:03,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:39:01" (2/3) ... [2019-11-26 02:39:03,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d247dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:39:03, skipping insertion in model container [2019-11-26 02:39:03,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:39:03" (3/3) ... [2019-11-26 02:39:03,288 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2019-11-26 02:39:03,297 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:39:03,302 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-26 02:39:03,309 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-26 02:39:03,330 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:39:03,330 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:39:03,330 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:39:03,330 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:39:03,331 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:39:03,331 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:39:03,331 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:39:03,331 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:39:03,345 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-26 02:39:03,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:39:03,350 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:39:03,351 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:39:03,351 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:39:03,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:39:03,357 INFO L82 PathProgramCache]: Analyzing trace with hash 740475138, now seen corresponding path program 1 times [2019-11-26 02:39:03,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:39:03,364 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212160704] [2019-11-26 02:39:03,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:39:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:39:03,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:39:03,578 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212160704] [2019-11-26 02:39:03,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:39:03,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:39:03,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014295143] [2019-11-26 02:39:03,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:39:03,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:39:03,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:39:03,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:39:03,599 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-11-26 02:39:03,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:39:03,618 INFO L93 Difference]: Finished difference Result 50 states and 75 transitions. [2019-11-26 02:39:03,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:39:03,619 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-26 02:39:03,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:39:03,629 INFO L225 Difference]: With dead ends: 50 [2019-11-26 02:39:03,629 INFO L226 Difference]: Without dead ends: 24 [2019-11-26 02:39:03,632 INFO L630 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 [2019-11-26 02:39:03,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-26 02:39:03,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-26 02:39:03,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-26 02:39:03,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2019-11-26 02:39:03,665 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 8 [2019-11-26 02:39:03,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:39:03,665 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2019-11-26 02:39:03,665 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:39:03,665 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2019-11-26 02:39:03,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:39:03,666 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:39:03,666 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:39:03,667 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:39:03,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:39:03,667 INFO L82 PathProgramCache]: Analyzing trace with hash -892739391, now seen corresponding path program 1 times [2019-11-26 02:39:03,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:39:03,668 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954672220] [2019-11-26 02:39:03,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:39:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:39:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:39:04,111 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:39:04,111 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:39:04,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:39:04 BoogieIcfgContainer [2019-11-26 02:39:04,185 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:39:04,185 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:39:04,185 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:39:04,186 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:39:04,186 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:39:03" (3/4) ... [2019-11-26 02:39:04,188 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:39:04,251 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4e0480bd-bb21-4125-8b64-63fb15565615/bin/utaipan/witness.graphml [2019-11-26 02:39:04,251 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:39:04,253 INFO L168 Benchmark]: Toolchain (without parser) took 3581.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 202.9 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -190.6 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:39:04,254 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:39:04,254 INFO L168 Benchmark]: CACSL2BoogieTranslator took 506.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 202.9 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -239.6 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:39:04,254 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:39:04,255 INFO L168 Benchmark]: Boogie Preprocessor took 114.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:39:04,255 INFO L168 Benchmark]: RCFGBuilder took 1903.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 968.0 MB in the end (delta: 212.3 MB). Peak memory consumption was 212.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:39:04,256 INFO L168 Benchmark]: TraceAbstraction took 912.02 ms. Allocated memory is still 1.2 GB. Free memory was 968.0 MB in the beginning and 1.1 GB in the end (delta: -181.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:39:04,256 INFO L168 Benchmark]: Witness Printer took 66.23 ms. Allocated memory is still 1.2 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. [2019-11-26 02:39:04,258 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 506.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 202.9 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -239.6 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 114.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1903.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 968.0 MB in the end (delta: 212.3 MB). Peak memory consumption was 212.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 912.02 ms. Allocated memory is still 1.2 GB. Free memory was 968.0 MB in the beginning and 1.1 GB in the end (delta: -181.0 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 66.23 ms. Allocated memory is still 1.2 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 140]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L585] int pumpRunning = 0; [L586] int systemActive = 1; [L868] int cleanupTimeShifts = 4; [L314] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L941] int retValue_acc ; [L942] int tmp ; [L859] int retValue_acc ; [L862] retValue_acc = 1 [L863] return (retValue_acc); [L948] tmp = valid_product() [L950] COND TRUE \read(tmp) [L515] int splverifierCounter ; [L516] int tmp ; [L517] int tmp___0 ; [L518] int tmp___1 ; [L519] int tmp___2 ; [L522] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L524] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L526] COND TRUE splverifierCounter < 4 [L532] tmp = __VERIFIER_nondet_int() [L534] COND TRUE \read(tmp) [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L542] tmp___0 = __VERIFIER_nondet_int() [L544] COND FALSE !(\read(tmp___0)) [L552] tmp___2 = __VERIFIER_nondet_int() [L554] COND TRUE \read(tmp___2) [L593] COND FALSE !(\read(pumpRunning)) [L600] COND TRUE \read(systemActive) [L648] int tmp ; [L651] COND FALSE !(\read(pumpRunning)) [L622] int tmp ; [L625] COND FALSE !(\read(pumpRunning)) [L797] int tmp ; [L798] int tmp___0 ; [L799] int tmp___1 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L803] tmp = isMethaneLevelCritical() [L805] COND FALSE !(\read(tmp)) [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L809] tmp___0 = getWaterLevel() [L811] COND TRUE tmp___0 == 2 [L717] int retValue_acc ; [L720] retValue_acc = pumpRunning [L721] return (retValue_acc); [L813] tmp___1 = isPumpRunning() [L815] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L140] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 3 error locations. Result: UNSAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 34 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...