./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product41.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_8f60d1f4-44f0-46c5-ae99-d273b837bfdc/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8f60d1f4-44f0-46c5-ae99-d273b837bfdc/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8f60d1f4-44f0-46c5-ae99-d273b837bfdc/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8f60d1f4-44f0-46c5-ae99-d273b837bfdc/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8f60d1f4-44f0-46c5-ae99-d273b837bfdc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8f60d1f4-44f0-46c5-ae99-d273b837bfdc/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 5a2d3ce20e3d26ebf70024607ecab77b852f9995 ........................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:44:47,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:44:47,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:44:47,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:44:47,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:44:47,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:44:47,311 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:44:47,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:44:47,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:44:47,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:44:47,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:44:47,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:44:47,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:44:47,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:44:47,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:44:47,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:44:47,338 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:44:47,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:44:47,341 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:44:47,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:44:47,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:44:47,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:44:47,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:44:47,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:44:47,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:44:47,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:44:47,356 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:44:47,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:44:47,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:44:47,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:44:47,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:44:47,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:44:47,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:44:47,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:44:47,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:44:47,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:44:47,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:44:47,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:44:47,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:44:47,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:44:47,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:44:47,366 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8f60d1f4-44f0-46c5-ae99-d273b837bfdc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:44:47,390 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:44:47,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:44:47,401 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:44:47,401 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:44:47,402 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:44:47,402 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:44:47,402 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:44:47,402 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:44:47,402 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:44:47,403 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:44:47,403 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:44:47,403 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:44:47,403 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:44:47,404 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:44:47,404 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:44:47,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:44:47,405 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:44:47,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:44:47,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:44:47,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:44:47,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:44:47,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:44:47,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:44:47,407 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:44:47,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:44:47,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:44:47,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:44:47,408 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:44:47,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:44:47,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:44:47,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:44:47,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:44:47,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:44:47,409 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:44:47,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:44:47,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:44:47,410 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:44:47,410 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_8f60d1f4-44f0-46c5-ae99-d273b837bfdc/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 -> 5a2d3ce20e3d26ebf70024607ecab77b852f9995 [2019-11-26 02:44:47,574 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:44:47,588 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:44:47,590 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:44:47,592 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:44:47,592 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:44:47,593 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8f60d1f4-44f0-46c5-ae99-d273b837bfdc/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c [2019-11-26 02:44:47,649 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8f60d1f4-44f0-46c5-ae99-d273b837bfdc/bin/utaipan/data/318c1eb41/c40e9b07d82d4a16bc27e31e065c62cc/FLAG356a49779 [2019-11-26 02:44:48,106 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:44:48,106 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8f60d1f4-44f0-46c5-ae99-d273b837bfdc/sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c [2019-11-26 02:44:48,126 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8f60d1f4-44f0-46c5-ae99-d273b837bfdc/bin/utaipan/data/318c1eb41/c40e9b07d82d4a16bc27e31e065c62cc/FLAG356a49779 [2019-11-26 02:44:48,482 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8f60d1f4-44f0-46c5-ae99-d273b837bfdc/bin/utaipan/data/318c1eb41/c40e9b07d82d4a16bc27e31e065c62cc [2019-11-26 02:44:48,484 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:44:48,484 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:44:48,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:44:48,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:44:48,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:44:48,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:44:48" (1/1) ... [2019-11-26 02:44:48,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1206ce3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:48, skipping insertion in model container [2019-11-26 02:44:48,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:44:48" (1/1) ... [2019-11-26 02:44:48,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:44:48,532 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:44:48,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:44:48,924 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:44:49,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:44:49,090 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:44:49,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:49 WrapperNode [2019-11-26 02:44:49,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:44:49,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:44:49,091 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:44:49,091 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:44:49,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:49" (1/1) ... [2019-11-26 02:44:49,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:49" (1/1) ... [2019-11-26 02:44:49,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:44:49,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:44:49,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:44:49,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:44:49,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:49" (1/1) ... [2019-11-26 02:44:49,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:49" (1/1) ... [2019-11-26 02:44:49,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:49" (1/1) ... [2019-11-26 02:44:49,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:49" (1/1) ... [2019-11-26 02:44:49,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:49" (1/1) ... [2019-11-26 02:44:49,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:49" (1/1) ... [2019-11-26 02:44:49,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:49" (1/1) ... [2019-11-26 02:44:49,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:44:49,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:44:49,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:44:49,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:44:49,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f60d1f4-44f0-46c5-ae99-d273b837bfdc/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 02:44:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:44:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:44:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:44:49,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:44:50,881 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:44:50,881 INFO L284 CfgBuilder]: Removed 114 assume(true) statements. [2019-11-26 02:44:50,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:44:50 BoogieIcfgContainer [2019-11-26 02:44:50,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:44:50,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:44:50,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:44:50,887 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:44:50,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:44:48" (1/3) ... [2019-11-26 02:44:50,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73885cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:44:50, skipping insertion in model container [2019-11-26 02:44:50,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:49" (2/3) ... [2019-11-26 02:44:50,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73885cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:44:50, skipping insertion in model container [2019-11-26 02:44:50,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:44:50" (3/3) ... [2019-11-26 02:44:50,890 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product41.cil.c [2019-11-26 02:44:50,899 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:44:50,906 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-26 02:44:50,916 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-26 02:44:50,937 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:44:50,937 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:44:50,937 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:44:50,937 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:44:50,938 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:44:50,938 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:44:50,938 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:44:50,938 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:44:50,952 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-26 02:44:50,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:44:50,958 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:44:50,959 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:44:50,959 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:44:50,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:44:50,964 INFO L82 PathProgramCache]: Analyzing trace with hash -627786758, now seen corresponding path program 1 times [2019-11-26 02:44:50,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:44:50,974 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44960554] [2019-11-26 02:44:50,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:44:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:44:51,192 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 02:44:51,193 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44960554] [2019-11-26 02:44:51,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:44:51,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:44:51,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042650581] [2019-11-26 02:44:51,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:44:51,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:44:51,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:44:51,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:44:51,215 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2019-11-26 02:44:51,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:44:51,233 INFO L93 Difference]: Finished difference Result 44 states and 63 transitions. [2019-11-26 02:44:51,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:44:51,234 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-26 02:44:51,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:44:51,247 INFO L225 Difference]: With dead ends: 44 [2019-11-26 02:44:51,247 INFO L226 Difference]: Without dead ends: 21 [2019-11-26 02:44:51,250 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 02:44:51,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-26 02:44:51,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-26 02:44:51,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-26 02:44:51,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2019-11-26 02:44:51,284 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 7 [2019-11-26 02:44:51,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:44:51,285 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-11-26 02:44:51,285 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:44:51,285 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-11-26 02:44:51,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:44:51,285 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:44:51,286 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:44:51,286 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:44:51,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:44:51,286 INFO L82 PathProgramCache]: Analyzing trace with hash -963183411, now seen corresponding path program 1 times [2019-11-26 02:44:51,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:44:51,287 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184226341] [2019-11-26 02:44:51,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:44:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:44:51,490 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 02:44:51,491 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184226341] [2019-11-26 02:44:51,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:44:51,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:44:51,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620437703] [2019-11-26 02:44:51,492 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:44:51,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:44:51,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:44:51,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:44:51,493 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 5 states. [2019-11-26 02:44:51,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:44:51,633 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2019-11-26 02:44:51,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:44:51,634 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-11-26 02:44:51,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:44:51,635 INFO L225 Difference]: With dead ends: 45 [2019-11-26 02:44:51,635 INFO L226 Difference]: Without dead ends: 41 [2019-11-26 02:44:51,636 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:44:51,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-26 02:44:51,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 28. [2019-11-26 02:44:51,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-26 02:44:51,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2019-11-26 02:44:51,644 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 7 [2019-11-26 02:44:51,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:44:51,645 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2019-11-26 02:44:51,645 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:44:51,645 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2019-11-26 02:44:51,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:44:51,646 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:44:51,646 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-11-26 02:44:51,646 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:44:51,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:44:51,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1739618853, now seen corresponding path program 1 times [2019-11-26 02:44:51,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:44:51,647 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119159324] [2019-11-26 02:44:51,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:44:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:44:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:44:52,023 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:44:52,024 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:44:52,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:44:52 BoogieIcfgContainer [2019-11-26 02:44:52,108 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:44:52,109 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:44:52,109 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:44:52,109 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:44:52,110 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:44:50" (3/4) ... [2019-11-26 02:44:52,112 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:44:52,245 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8f60d1f4-44f0-46c5-ae99-d273b837bfdc/bin/utaipan/witness.graphml [2019-11-26 02:44:52,245 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:44:52,247 INFO L168 Benchmark]: Toolchain (without parser) took 3761.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 948.7 MB in the beginning and 859.2 MB in the end (delta: 89.5 MB). Peak memory consumption was 247.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:52,247 INFO L168 Benchmark]: CDTParser took 0.22 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 02:44:52,248 INFO L168 Benchmark]: CACSL2BoogieTranslator took 605.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -196.5 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:52,248 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.19 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:52,249 INFO L168 Benchmark]: Boogie Preprocessor took 39.29 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:44:52,249 INFO L168 Benchmark]: RCFGBuilder took 1681.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 959.1 MB in the end (delta: 173.6 MB). Peak memory consumption was 173.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:52,250 INFO L168 Benchmark]: TraceAbstraction took 1224.46 ms. Allocated memory is still 1.2 GB. Free memory was 959.1 MB in the beginning and 866.3 MB in the end (delta: 92.8 MB). Peak memory consumption was 92.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:52,250 INFO L168 Benchmark]: Witness Printer took 136.46 ms. Allocated memory is still 1.2 GB. Free memory was 866.3 MB in the beginning and 859.2 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:52,253 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 605.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -196.5 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 70.19 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.29 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1681.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 959.1 MB in the end (delta: 173.6 MB). Peak memory consumption was 173.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1224.46 ms. Allocated memory is still 1.2 GB. Free memory was 959.1 MB in the beginning and 866.3 MB in the end (delta: 92.8 MB). Peak memory consumption was 92.8 MB. Max. memory is 11.5 GB. * Witness Printer took 136.46 ms. Allocated memory is still 1.2 GB. Free memory was 866.3 MB in the beginning and 859.2 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 887]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L480] int waterLevel = 1; [L481] int methaneLevelCritical = 0; [L578] int pumpRunning = 0; [L579] int systemActive = 1; [L749] int cleanupTimeShifts = 4; [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L825] int retValue_acc ; [L826] int tmp ; [L874] int retValue_acc ; [L877] retValue_acc = 1 [L878] return (retValue_acc); [L832] tmp = valid_product() [L834] COND TRUE \read(tmp) [L411] int splverifierCounter ; [L412] int tmp ; [L413] int tmp___0 ; [L414] int tmp___1 ; [L415] int tmp___2 ; [L418] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L420] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L422] COND TRUE splverifierCounter < 4 [L428] tmp = __VERIFIER_nondet_int() [L430] COND TRUE \read(tmp) [L498] COND TRUE waterLevel < 2 [L499] waterLevel = waterLevel + 1 [L438] tmp___0 = __VERIFIER_nondet_int() [L440] COND FALSE !(\read(tmp___0)) [L448] tmp___2 = __VERIFIER_nondet_int() [L450] COND TRUE \read(tmp___2) [L586] COND FALSE !(\read(pumpRunning)) [L593] COND TRUE \read(systemActive) [L615] int tmp ; [L618] COND TRUE ! pumpRunning [L730] int retValue_acc ; [L731] int tmp ; [L732] int tmp___0 ; [L560] int retValue_acc ; [L563] COND FALSE !(waterLevel < 2) [L567] retValue_acc = 0 [L568] return (retValue_acc); [L736] tmp = isHighWaterSensorDry() [L738] COND FALSE !(\read(tmp)) [L741] tmp___0 = 1 [L743] retValue_acc = tmp___0 [L744] return (retValue_acc); [L620] tmp = isHighWaterLevel() [L622] COND TRUE \read(tmp) [L649] int tmp ; [L674] int retValue_acc ; [L519] int retValue_acc ; [L522] retValue_acc = methaneLevelCritical [L523] return (retValue_acc); [L678] retValue_acc = isMethaneLevelCritical() [L680] return (retValue_acc); [L653] tmp = isMethaneAlarm() [L655] COND FALSE !(\read(tmp)) [L643] pumpRunning = 1 [L893] int tmp ; [L894] int tmp___0 ; [L519] int retValue_acc ; [L522] retValue_acc = methaneLevelCritical [L523] return (retValue_acc); [L898] tmp = isMethaneLevelCritical() [L900] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L420] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L422] COND TRUE splverifierCounter < 4 [L428] tmp = __VERIFIER_nondet_int() [L430] COND TRUE \read(tmp) [L498] COND FALSE !(waterLevel < 2) [L438] tmp___0 = __VERIFIER_nondet_int() [L440] COND TRUE \read(tmp___0) [L510] COND FALSE !(\read(methaneLevelCritical)) [L513] methaneLevelCritical = 1 [L448] tmp___2 = __VERIFIER_nondet_int() [L450] COND TRUE \read(tmp___2) [L586] COND TRUE \read(pumpRunning) [L486] COND TRUE waterLevel > 0 [L487] waterLevel = waterLevel - 1 [L593] COND TRUE \read(systemActive) [L615] int tmp ; [L618] COND FALSE !(! pumpRunning) [L893] int tmp ; [L894] int tmp___0 ; [L519] int retValue_acc ; [L522] retValue_acc = methaneLevelCritical [L523] return (retValue_acc); [L898] tmp = isMethaneLevelCritical() [L900] COND TRUE \read(tmp) [L685] int retValue_acc ; [L688] retValue_acc = pumpRunning [L689] return (retValue_acc); [L902] tmp___0 = isPumpRunning() [L904] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L887] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 49 SDtfs, 25 SDslu, 43 SDs, 0 SdLazy, 48 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=2, 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, 2 MinimizatonAttempts, 13 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 228 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...