./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product43.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_55a902e2-d1e4-439e-8035-4d852feca54c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_55a902e2-d1e4-439e-8035-4d852feca54c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_55a902e2-d1e4-439e-8035-4d852feca54c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_55a902e2-d1e4-439e-8035-4d852feca54c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_55a902e2-d1e4-439e-8035-4d852feca54c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_55a902e2-d1e4-439e-8035-4d852feca54c/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 63b48aee14c7431a4aa25f8de4f2dd8129d50ad4 ......................................................................................................................................................................................................................................................................................................................................................................... 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 02:05:47,022 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:05:47,024 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:05:47,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:05:47,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:05:47,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:05:47,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:05:47,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:05:47,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:05:47,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:05:47,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:05:47,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:05:47,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:05:47,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:05:47,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:05:47,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:05:47,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:05:47,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:05:47,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:05:47,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:05:47,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:05:47,085 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:05:47,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:05:47,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:05:47,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:05:47,091 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:05:47,091 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:05:47,092 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:05:47,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:05:47,093 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:05:47,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:05:47,094 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:05:47,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:05:47,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:05:47,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:05:47,097 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:05:47,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:05:47,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:05:47,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:05:47,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:05:47,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:05:47,100 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_55a902e2-d1e4-439e-8035-4d852feca54c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:05:47,125 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:05:47,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:05:47,136 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:05:47,136 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:05:47,137 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:05:47,137 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:05:47,137 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:05:47,137 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:05:47,137 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:05:47,138 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:05:47,138 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:05:47,138 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:05:47,138 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:05:47,139 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:05:47,139 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:05:47,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:05:47,140 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:05:47,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:05:47,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:05:47,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:05:47,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:05:47,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:05:47,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:05:47,142 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:05:47,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:05:47,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:05:47,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:05:47,143 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:05:47,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:05:47,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:05:47,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:05:47,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:05:47,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:05:47,145 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:05:47,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:05:47,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:05:47,145 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:05:47,146 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_55a902e2-d1e4-439e-8035-4d852feca54c/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 -> 63b48aee14c7431a4aa25f8de4f2dd8129d50ad4 [2019-11-26 02:05:47,316 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:05:47,334 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:05:47,337 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:05:47,338 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:05:47,339 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:05:47,339 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_55a902e2-d1e4-439e-8035-4d852feca54c/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2019-11-26 02:05:47,401 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_55a902e2-d1e4-439e-8035-4d852feca54c/bin/utaipan/data/6733f88c6/ea76627b850e4448bc2ceed5c435cdc6/FLAG50607610f [2019-11-26 02:05:47,892 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:05:47,892 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_55a902e2-d1e4-439e-8035-4d852feca54c/sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2019-11-26 02:05:47,918 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_55a902e2-d1e4-439e-8035-4d852feca54c/bin/utaipan/data/6733f88c6/ea76627b850e4448bc2ceed5c435cdc6/FLAG50607610f [2019-11-26 02:05:48,219 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_55a902e2-d1e4-439e-8035-4d852feca54c/bin/utaipan/data/6733f88c6/ea76627b850e4448bc2ceed5c435cdc6 [2019-11-26 02:05:48,222 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:05:48,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:05:48,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:05:48,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:05:48,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:05:48,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:05:48" (1/1) ... [2019-11-26 02:05:48,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a6afe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:05:48, skipping insertion in model container [2019-11-26 02:05:48,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:05:48" (1/1) ... [2019-11-26 02:05:48,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:05:48,291 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:05:48,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:05:48,789 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:05:48,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:05:48,905 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:05:48,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:05:48 WrapperNode [2019-11-26 02:05:48,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:05:48,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:05:48,907 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:05:48,907 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:05:48,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:05:48" (1/1) ... [2019-11-26 02:05:48,944 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:05:48" (1/1) ... [2019-11-26 02:05:48,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:05:48,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:05:48,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:05:48,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:05:48,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:05:48" (1/1) ... [2019-11-26 02:05:48,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:05:48" (1/1) ... [2019-11-26 02:05:49,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:05:48" (1/1) ... [2019-11-26 02:05:49,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:05:48" (1/1) ... [2019-11-26 02:05:49,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:05:48" (1/1) ... [2019-11-26 02:05:49,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:05:48" (1/1) ... [2019-11-26 02:05:49,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:05:48" (1/1) ... [2019-11-26 02:05:49,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:05:49,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:05:49,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:05:49,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:05:49,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:05:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_55a902e2-d1e4-439e-8035-4d852feca54c/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 02:05:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:05:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:05:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:05:49,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:05:50,735 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:05:50,735 INFO L284 CfgBuilder]: Removed 118 assume(true) statements. [2019-11-26 02:05:50,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:05:50 BoogieIcfgContainer [2019-11-26 02:05:50,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:05:50,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:05:50,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:05:50,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:05:50,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:05:48" (1/3) ... [2019-11-26 02:05:50,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2287b657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:05:50, skipping insertion in model container [2019-11-26 02:05:50,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:05:48" (2/3) ... [2019-11-26 02:05:50,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2287b657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:05:50, skipping insertion in model container [2019-11-26 02:05:50,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:05:50" (3/3) ... [2019-11-26 02:05:50,748 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product43.cil.c [2019-11-26 02:05:50,757 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:05:50,763 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-26 02:05:50,774 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-26 02:05:50,797 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:05:50,797 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:05:50,797 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:05:50,798 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:05:50,798 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:05:50,798 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:05:50,798 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:05:50,798 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:05:50,814 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-26 02:05:50,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:05:50,824 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:05:50,825 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:05:50,826 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:05:50,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:05:50,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1823268087, now seen corresponding path program 1 times [2019-11-26 02:05:50,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:05:50,841 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361112824] [2019-11-26 02:05:50,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:05:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:05:51,256 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 02:05:51,257 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361112824] [2019-11-26 02:05:51,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:05:51,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-26 02:05:51,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579254195] [2019-11-26 02:05:51,263 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:05:51,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:05:51,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:05:51,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:05:51,278 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 6 states. [2019-11-26 02:05:51,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:05:51,468 INFO L93 Difference]: Finished difference Result 68 states and 99 transitions. [2019-11-26 02:05:51,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:05:51,471 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2019-11-26 02:05:51,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:05:51,480 INFO L225 Difference]: With dead ends: 68 [2019-11-26 02:05:51,480 INFO L226 Difference]: Without dead ends: 41 [2019-11-26 02:05:51,483 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:05:51,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-26 02:05:51,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 28. [2019-11-26 02:05:51,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-26 02:05:51,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2019-11-26 02:05:51,517 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 7 [2019-11-26 02:05:51,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:05:51,518 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2019-11-26 02:05:51,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:05:51,518 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2019-11-26 02:05:51,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:05:51,519 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:05:51,519 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-11-26 02:05:51,519 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:05:51,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:05:51,520 INFO L82 PathProgramCache]: Analyzing trace with hash -755914295, now seen corresponding path program 1 times [2019-11-26 02:05:51,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:05:51,520 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660003760] [2019-11-26 02:05:51,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:05:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:05:51,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:05:51,877 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:05:51,877 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:05:51,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:05:51 BoogieIcfgContainer [2019-11-26 02:05:51,966 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:05:51,966 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:05:51,966 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:05:51,969 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:05:51,970 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:05:50" (3/4) ... [2019-11-26 02:05:51,972 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:05:52,111 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_55a902e2-d1e4-439e-8035-4d852feca54c/bin/utaipan/witness.graphml [2019-11-26 02:05:52,111 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:05:52,113 INFO L168 Benchmark]: Toolchain (without parser) took 3890.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 951.4 MB in the beginning and 813.7 MB in the end (delta: 137.8 MB). Peak memory consumption was 253.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:05:52,114 INFO L168 Benchmark]: CDTParser took 0.25 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 02:05:52,114 INFO L168 Benchmark]: CACSL2BoogieTranslator took 679.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -151.1 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:05:52,115 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.21 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: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:05:52,115 INFO L168 Benchmark]: Boogie Preprocessor took 52.81 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:05:52,115 INFO L168 Benchmark]: RCFGBuilder took 1697.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 907.3 MB in the end (delta: 182.6 MB). Peak memory consumption was 182.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:05:52,116 INFO L168 Benchmark]: TraceAbstraction took 1228.43 ms. Allocated memory is still 1.1 GB. Free memory was 907.3 MB in the beginning and 820.9 MB in the end (delta: 86.4 MB). Peak memory consumption was 86.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:05:52,116 INFO L168 Benchmark]: Witness Printer took 145.51 ms. Allocated memory is still 1.1 GB. Free memory was 820.9 MB in the beginning and 813.7 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:05:52,118 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 679.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -151.1 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 79.21 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: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.81 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1697.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 907.3 MB in the end (delta: 182.6 MB). Peak memory consumption was 182.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1228.43 ms. Allocated memory is still 1.1 GB. Free memory was 907.3 MB in the beginning and 820.9 MB in the end (delta: 86.4 MB). Peak memory consumption was 86.4 MB. Max. memory is 11.5 GB. * Witness Printer took 145.51 ms. Allocated memory is still 1.1 GB. Free memory was 820.9 MB in the beginning and 813.7 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 405]: 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; [L147] int pumpRunning = 0; [L148] int systemActive = 1; [L436] int cleanupTimeShifts = 4; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L512] int retValue_acc ; [L513] int tmp ; [L927] int retValue_acc ; [L930] retValue_acc = 1 [L931] return (retValue_acc); [L519] tmp = valid_product() [L521] COND TRUE \read(tmp) [L335] int splverifierCounter ; [L336] int tmp ; [L337] int tmp___0 ; [L338] int tmp___1 ; [L339] int tmp___2 ; [L342] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L344] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L346] COND TRUE splverifierCounter < 4 [L352] tmp = __VERIFIER_nondet_int() [L354] COND TRUE \read(tmp) [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L362] tmp___0 = __VERIFIER_nondet_int() [L364] COND FALSE !(\read(tmp___0)) [L372] tmp___2 = __VERIFIER_nondet_int() [L374] COND FALSE !(\read(tmp___2)) [L378] tmp___1 = __VERIFIER_nondet_int() [L380] COND FALSE !(\read(tmp___1)) [L155] COND FALSE !(\read(pumpRunning)) [L162] COND TRUE \read(systemActive) [L184] int tmp ; [L187] COND TRUE ! pumpRunning [L299] int retValue_acc ; [L300] int tmp ; [L301] int tmp___0 ; [L127] int retValue_acc ; [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); [L305] tmp = isHighWaterSensorDry() [L307] COND FALSE !(\read(tmp)) [L310] tmp___0 = 1 [L312] retValue_acc = tmp___0 [L313] return (retValue_acc); [L189] tmp = isHighWaterLevel() [L191] COND TRUE \read(tmp) [L218] int tmp ; [L243] int retValue_acc ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L247] retValue_acc = isMethaneLevelCritical() [L249] return (retValue_acc); [L222] tmp = isMethaneAlarm() [L224] COND FALSE !(\read(tmp)) [L212] pumpRunning = 1 [L411] int tmp ; [L412] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L416] tmp = isMethaneLevelCritical() [L418] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L344] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L346] COND TRUE splverifierCounter < 4 [L352] tmp = __VERIFIER_nondet_int() [L354] COND FALSE !(\read(tmp)) [L362] tmp___0 = __VERIFIER_nondet_int() [L364] COND TRUE \read(tmp___0) [L77] COND FALSE !(\read(methaneLevelCritical)) [L80] methaneLevelCritical = 1 [L372] tmp___2 = __VERIFIER_nondet_int() [L374] COND FALSE !(\read(tmp___2)) [L378] tmp___1 = __VERIFIER_nondet_int() [L380] COND FALSE !(\read(tmp___1)) [L155] COND TRUE \read(pumpRunning) [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 [L162] COND TRUE \read(systemActive) [L184] int tmp ; [L187] COND FALSE !(! pumpRunning) [L411] int tmp ; [L412] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L416] tmp = isMethaneLevelCritical() [L418] COND TRUE \read(tmp) [L254] int retValue_acc ; [L257] retValue_acc = pumpRunning [L258] return (retValue_acc); [L420] tmp___0 = isPumpRunning() [L422] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L405] __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: 2, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 31 SDslu, 72 SDs, 0 SdLazy, 63 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=1, 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, 13 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 210 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...