./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product42.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_dbff3dcf-7265-4f98-be62-d73cc5511d75/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_dbff3dcf-7265-4f98-be62-d73cc5511d75/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dbff3dcf-7265-4f98-be62-d73cc5511d75/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dbff3dcf-7265-4f98-be62-d73cc5511d75/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_dbff3dcf-7265-4f98-be62-d73cc5511d75/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dbff3dcf-7265-4f98-be62-d73cc5511d75/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 0f3978068d3e88eb2e8d08ee6f85f2ba09bbc729 .......................................................................................................................................................................................................................................................................................................................................................................... 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 02:47:19,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:47:19,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:47:19,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:47:19,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:47:19,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:47:19,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:47:19,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:47:19,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:47:19,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:47:19,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:47:19,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:47:19,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:47:19,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:47:19,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:47:19,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:47:19,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:47:19,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:47:19,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:47:19,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:47:19,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:47:19,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:47:19,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:47:19,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:47:19,082 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:47:19,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:47:19,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:47:19,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:47:19,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:47:19,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:47:19,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:47:19,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:47:19,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:47:19,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:47:19,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:47:19,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:47:19,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:47:19,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:47:19,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:47:19,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:47:19,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:47:19,099 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dbff3dcf-7265-4f98-be62-d73cc5511d75/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:47:19,115 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:47:19,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:47:19,117 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:47:19,117 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:47:19,117 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:47:19,118 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:47:19,118 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:47:19,118 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:47:19,118 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:47:19,118 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:47:19,119 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:47:19,120 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:47:19,120 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:47:19,120 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:47:19,120 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:47:19,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:47:19,121 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:47:19,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:47:19,121 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:47:19,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:47:19,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:47:19,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:47:19,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:47:19,123 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:47:19,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:47:19,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:47:19,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:47:19,124 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:47:19,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:47:19,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:47:19,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:47:19,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:47:19,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:47:19,125 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:47:19,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:47:19,125 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:47:19,126 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:47:19,126 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_dbff3dcf-7265-4f98-be62-d73cc5511d75/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 -> 0f3978068d3e88eb2e8d08ee6f85f2ba09bbc729 [2019-11-26 02:47:19,275 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:47:19,288 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:47:19,291 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:47:19,292 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:47:19,292 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:47:19,293 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dbff3dcf-7265-4f98-be62-d73cc5511d75/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c [2019-11-26 02:47:19,345 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dbff3dcf-7265-4f98-be62-d73cc5511d75/bin/utaipan/data/cf2a01dc6/ad163038b72b45b6bc67d793183a1489/FLAGf9943320b [2019-11-26 02:47:19,793 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:47:19,795 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dbff3dcf-7265-4f98-be62-d73cc5511d75/sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c [2019-11-26 02:47:19,813 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dbff3dcf-7265-4f98-be62-d73cc5511d75/bin/utaipan/data/cf2a01dc6/ad163038b72b45b6bc67d793183a1489/FLAGf9943320b [2019-11-26 02:47:19,828 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dbff3dcf-7265-4f98-be62-d73cc5511d75/bin/utaipan/data/cf2a01dc6/ad163038b72b45b6bc67d793183a1489 [2019-11-26 02:47:19,831 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:47:19,833 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:47:19,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:47:19,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:47:19,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:47:19,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:47:19" (1/1) ... [2019-11-26 02:47:19,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ae0e6d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:19, skipping insertion in model container [2019-11-26 02:47:19,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:47:19" (1/1) ... [2019-11-26 02:47:19,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:47:19,904 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:47:20,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:47:20,234 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:47:20,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:47:20,354 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:47:20,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:20 WrapperNode [2019-11-26 02:47:20,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:47:20,355 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:47:20,355 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:47:20,355 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:47:20,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:20" (1/1) ... [2019-11-26 02:47:20,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:20" (1/1) ... [2019-11-26 02:47:20,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:47:20,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:47:20,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:47:20,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:47:20,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:20" (1/1) ... [2019-11-26 02:47:20,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:20" (1/1) ... [2019-11-26 02:47:20,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:20" (1/1) ... [2019-11-26 02:47:20,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:20" (1/1) ... [2019-11-26 02:47:20,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:20" (1/1) ... [2019-11-26 02:47:20,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:20" (1/1) ... [2019-11-26 02:47:20,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:20" (1/1) ... [2019-11-26 02:47:20,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:47:20,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:47:20,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:47:20,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:47:20,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dbff3dcf-7265-4f98-be62-d73cc5511d75/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 02:47:20,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:47:20,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:47:20,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:47:20,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:47:22,169 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:47:22,169 INFO L284 CfgBuilder]: Removed 116 assume(true) statements. [2019-11-26 02:47:22,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:47:22 BoogieIcfgContainer [2019-11-26 02:47:22,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:47:22,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:47:22,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:47:22,174 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:47:22,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:47:19" (1/3) ... [2019-11-26 02:47:22,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e369e2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:47:22, skipping insertion in model container [2019-11-26 02:47:22,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:20" (2/3) ... [2019-11-26 02:47:22,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e369e2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:47:22, skipping insertion in model container [2019-11-26 02:47:22,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:47:22" (3/3) ... [2019-11-26 02:47:22,191 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product42.cil.c [2019-11-26 02:47:22,199 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:47:22,213 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-26 02:47:22,223 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-26 02:47:22,249 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:47:22,249 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:47:22,249 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:47:22,249 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:47:22,250 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:47:22,250 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:47:22,250 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:47:22,250 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:47:22,267 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-26 02:47:22,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:47:22,276 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:47:22,277 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:47:22,277 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:47:22,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:47:22,283 INFO L82 PathProgramCache]: Analyzing trace with hash 238998791, now seen corresponding path program 1 times [2019-11-26 02:47:22,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:47:22,293 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852893022] [2019-11-26 02:47:22,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:47:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:47:22,665 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 02:47:22,666 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852893022] [2019-11-26 02:47:22,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:47:22,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:47:22,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018196969] [2019-11-26 02:47:22,672 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:47:22,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:47:22,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:47:22,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:47:22,686 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2019-11-26 02:47:22,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:47:22,840 INFO L93 Difference]: Finished difference Result 73 states and 105 transitions. [2019-11-26 02:47:22,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:47:22,842 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-11-26 02:47:22,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:47:22,852 INFO L225 Difference]: With dead ends: 73 [2019-11-26 02:47:22,852 INFO L226 Difference]: Without dead ends: 44 [2019-11-26 02:47:22,859 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:47:22,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-11-26 02:47:22,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 34. [2019-11-26 02:47:22,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-26 02:47:22,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2019-11-26 02:47:22,908 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 7 [2019-11-26 02:47:22,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:47:22,909 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2019-11-26 02:47:22,909 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:47:22,909 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2019-11-26 02:47:22,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:47:22,911 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:47:22,911 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-11-26 02:47:22,912 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:47:22,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:47:22,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1174997184, now seen corresponding path program 1 times [2019-11-26 02:47:22,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:47:22,913 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414096088] [2019-11-26 02:47:22,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:47:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:47:23,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:47:23,257 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:47:23,257 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:47:23,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:47:23 BoogieIcfgContainer [2019-11-26 02:47:23,375 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:47:23,375 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:47:23,376 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:47:23,376 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:47:23,376 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:47:22" (3/4) ... [2019-11-26 02:47:23,379 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:47:23,502 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_dbff3dcf-7265-4f98-be62-d73cc5511d75/bin/utaipan/witness.graphml [2019-11-26 02:47:23,502 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:47:23,504 INFO L168 Benchmark]: Toolchain (without parser) took 3670.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 943.3 MB in the beginning and 810.9 MB in the end (delta: 132.4 MB). Peak memory consumption was 247.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:47:23,505 INFO L168 Benchmark]: CDTParser took 0.21 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 02:47:23,505 INFO L168 Benchmark]: CACSL2BoogieTranslator took 518.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -159.0 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:47:23,506 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.94 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:47:23,506 INFO L168 Benchmark]: Boogie Preprocessor took 36.48 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 02:47:23,506 INFO L168 Benchmark]: RCFGBuilder took 1699.98 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 910.2 MB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:47:23,507 INFO L168 Benchmark]: TraceAbstraction took 1203.37 ms. Allocated memory is still 1.1 GB. Free memory was 910.2 MB in the beginning and 818.0 MB in the end (delta: 92.2 MB). Peak memory consumption was 92.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:47:23,507 INFO L168 Benchmark]: Witness Printer took 126.85 ms. Allocated memory is still 1.1 GB. Free memory was 818.0 MB in the beginning and 810.9 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:47:23,509 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 518.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -159.0 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.94 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.48 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 1699.98 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 910.2 MB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1203.37 ms. Allocated memory is still 1.1 GB. Free memory was 910.2 MB in the beginning and 818.0 MB in the end (delta: 92.2 MB). Peak memory consumption was 92.2 MB. Max. memory is 11.5 GB. * Witness Printer took 126.85 ms. Allocated memory is still 1.1 GB. Free memory was 818.0 MB in the beginning and 810.9 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: 764]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L413] int waterLevel = 1; [L414] int methaneLevelCritical = 0; [L581] int pumpRunning = 0; [L582] int systemActive = 1; [L833] int cleanupTimeShifts = 4; [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L906] int retValue_acc ; [L907] int tmp ; [L824] int retValue_acc ; [L827] retValue_acc = 1 [L828] return (retValue_acc); [L913] tmp = valid_product() [L915] COND TRUE \read(tmp) [L511] int splverifierCounter ; [L512] int tmp ; [L513] int tmp___0 ; [L514] int tmp___1 ; [L515] int tmp___2 ; [L518] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L520] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L522] COND TRUE splverifierCounter < 4 [L528] tmp = __VERIFIER_nondet_int() [L530] COND TRUE \read(tmp) [L431] COND TRUE waterLevel < 2 [L432] waterLevel = waterLevel + 1 [L538] tmp___0 = __VERIFIER_nondet_int() [L540] COND FALSE !(\read(tmp___0)) [L548] tmp___2 = __VERIFIER_nondet_int() [L550] COND TRUE \read(tmp___2) [L755] systemActive = 1 [L589] COND FALSE !(\read(pumpRunning)) [L596] COND TRUE \read(systemActive) [L618] int tmp ; [L621] COND TRUE ! pumpRunning [L733] int retValue_acc ; [L734] int tmp ; [L735] int tmp___0 ; [L493] int retValue_acc ; [L496] COND FALSE !(waterLevel < 2) [L500] retValue_acc = 0 [L501] return (retValue_acc); [L739] tmp = isHighWaterSensorDry() [L741] COND FALSE !(\read(tmp)) [L744] tmp___0 = 1 [L746] retValue_acc = tmp___0 [L747] return (retValue_acc); [L623] tmp = isHighWaterLevel() [L625] COND TRUE \read(tmp) [L652] int tmp ; [L677] int retValue_acc ; [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); [L681] retValue_acc = isMethaneLevelCritical() [L683] return (retValue_acc); [L656] tmp = isMethaneAlarm() [L658] COND FALSE !(\read(tmp)) [L646] pumpRunning = 1 [L770] int tmp ; [L771] int tmp___0 ; [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); [L775] tmp = isMethaneLevelCritical() [L777] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L520] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L522] COND TRUE splverifierCounter < 4 [L528] tmp = __VERIFIER_nondet_int() [L530] COND TRUE \read(tmp) [L431] COND FALSE !(waterLevel < 2) [L538] tmp___0 = __VERIFIER_nondet_int() [L540] COND TRUE \read(tmp___0) [L443] COND FALSE !(\read(methaneLevelCritical)) [L446] methaneLevelCritical = 1 [L548] tmp___2 = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp___2)) [L556] tmp___1 = __VERIFIER_nondet_int() [L558] COND TRUE \read(tmp___1) [L589] COND TRUE \read(pumpRunning) [L419] COND TRUE waterLevel > 0 [L420] waterLevel = waterLevel - 1 [L596] COND TRUE \read(systemActive) [L618] int tmp ; [L621] COND FALSE !(! pumpRunning) [L770] int tmp ; [L771] int tmp___0 ; [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); [L775] tmp = isMethaneLevelCritical() [L777] COND TRUE \read(tmp) [L688] int retValue_acc ; [L691] retValue_acc = pumpRunning [L692] return (retValue_acc); [L779] tmp___0 = isPumpRunning() [L781] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L764] __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: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 36 SDslu, 54 SDs, 0 SdLazy, 51 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 156 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...