./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product36.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_c64ac8ed-c23d-4b25-8361-dcc39b72c4a4/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c64ac8ed-c23d-4b25-8361-dcc39b72c4a4/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c64ac8ed-c23d-4b25-8361-dcc39b72c4a4/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c64ac8ed-c23d-4b25-8361-dcc39b72c4a4/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product36.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c64ac8ed-c23d-4b25-8361-dcc39b72c4a4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c64ac8ed-c23d-4b25-8361-dcc39b72c4a4/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 49fa497f38e3a46185ee804b3f30fdc119cb200c ............................................................................................................................................................................................................................................................................................................................................................................. 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 02:14:08,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:14:08,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:14:08,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:14:08,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:14:08,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:14:08,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:14:08,790 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:14:08,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:14:08,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:14:08,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:14:08,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:14:08,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:14:08,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:14:08,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:14:08,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:14:08,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:14:08,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:14:08,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:14:08,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:14:08,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:14:08,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:14:08,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:14:08,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:14:08,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:14:08,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:14:08,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:14:08,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:14:08,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:14:08,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:14:08,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:14:08,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:14:08,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:14:08,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:14:08,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:14:08,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:14:08,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:14:08,833 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:14:08,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:14:08,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:14:08,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:14:08,836 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c64ac8ed-c23d-4b25-8361-dcc39b72c4a4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:14:08,861 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:14:08,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:14:08,861 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:14:08,862 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:14:08,862 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:14:08,862 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:14:08,862 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:14:08,862 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:14:08,862 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:14:08,863 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:14:08,863 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:14:08,863 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:14:08,863 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:14:08,863 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:14:08,864 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:14:08,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:14:08,864 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:14:08,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:14:08,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:14:08,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:14:08,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:14:08,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:14:08,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:14:08,866 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:14:08,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:14:08,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:14:08,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:14:08,866 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:14:08,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:14:08,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:14:08,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:14:08,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:14:08,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:14:08,867 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:14:08,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:14:08,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:14:08,868 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:14:08,868 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_c64ac8ed-c23d-4b25-8361-dcc39b72c4a4/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 -> 49fa497f38e3a46185ee804b3f30fdc119cb200c [2019-11-26 02:14:09,040 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:14:09,054 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:14:09,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:14:09,063 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:14:09,064 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:14:09,065 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c64ac8ed-c23d-4b25-8361-dcc39b72c4a4/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product36.cil.c [2019-11-26 02:14:09,120 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c64ac8ed-c23d-4b25-8361-dcc39b72c4a4/bin/utaipan/data/ad7a4240a/96513361c0b749dda45f93b34d63824c/FLAGab39b2824 [2019-11-26 02:14:09,528 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:14:09,535 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c64ac8ed-c23d-4b25-8361-dcc39b72c4a4/sv-benchmarks/c/product-lines/minepump_spec2_product36.cil.c [2019-11-26 02:14:09,546 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c64ac8ed-c23d-4b25-8361-dcc39b72c4a4/bin/utaipan/data/ad7a4240a/96513361c0b749dda45f93b34d63824c/FLAGab39b2824 [2019-11-26 02:14:09,846 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c64ac8ed-c23d-4b25-8361-dcc39b72c4a4/bin/utaipan/data/ad7a4240a/96513361c0b749dda45f93b34d63824c [2019-11-26 02:14:09,848 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:14:09,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:14:09,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:14:09,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:14:09,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:14:09,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:14:09" (1/1) ... [2019-11-26 02:14:09,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33d275ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:09, skipping insertion in model container [2019-11-26 02:14:09,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:14:09" (1/1) ... [2019-11-26 02:14:09,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:14:09,924 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:14:10,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:14:10,276 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:14:10,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:14:10,384 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:14:10,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:10 WrapperNode [2019-11-26 02:14:10,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:14:10,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:14:10,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:14:10,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:14:10,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:10" (1/1) ... [2019-11-26 02:14:10,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:10" (1/1) ... [2019-11-26 02:14:10,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:14:10,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:14:10,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:14:10,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:14:10,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:10" (1/1) ... [2019-11-26 02:14:10,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:10" (1/1) ... [2019-11-26 02:14:10,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:10" (1/1) ... [2019-11-26 02:14:10,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:10" (1/1) ... [2019-11-26 02:14:10,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:10" (1/1) ... [2019-11-26 02:14:10,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:10" (1/1) ... [2019-11-26 02:14:10,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:10" (1/1) ... [2019-11-26 02:14:10,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:14:10,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:14:10,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:14:10,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:14:10,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c64ac8ed-c23d-4b25-8361-dcc39b72c4a4/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 02:14:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:14:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:14:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:14:10,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:14:11,902 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:14:11,903 INFO L284 CfgBuilder]: Removed 104 assume(true) statements. [2019-11-26 02:14:11,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:14:11 BoogieIcfgContainer [2019-11-26 02:14:11,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:14:11,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:14:11,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:14:11,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:14:11,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:14:09" (1/3) ... [2019-11-26 02:14:11,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66bb5f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:14:11, skipping insertion in model container [2019-11-26 02:14:11,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:10" (2/3) ... [2019-11-26 02:14:11,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66bb5f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:14:11, skipping insertion in model container [2019-11-26 02:14:11,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:14:11" (3/3) ... [2019-11-26 02:14:11,911 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product36.cil.c [2019-11-26 02:14:11,919 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:14:11,925 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-26 02:14:11,935 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-26 02:14:11,955 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:14:11,956 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:14:11,956 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:14:11,956 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:14:11,956 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:14:11,956 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:14:11,956 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:14:11,957 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:14:11,969 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-26 02:14:11,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:14:11,975 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:14:11,975 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:14:11,975 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:14:11,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:14:11,979 INFO L82 PathProgramCache]: Analyzing trace with hash -662111730, now seen corresponding path program 1 times [2019-11-26 02:14:11,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:14:11,987 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908623770] [2019-11-26 02:14:11,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:14:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:14:12,216 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 02:14:12,217 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908623770] [2019-11-26 02:14:12,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:14:12,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:14:12,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838544760] [2019-11-26 02:14:12,222 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:14:12,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:14:12,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:14:12,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:14:12,237 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2019-11-26 02:14:12,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:14:12,321 INFO L93 Difference]: Finished difference Result 68 states and 105 transitions. [2019-11-26 02:14:12,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:14:12,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-26 02:14:12,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:14:12,336 INFO L225 Difference]: With dead ends: 68 [2019-11-26 02:14:12,337 INFO L226 Difference]: Without dead ends: 40 [2019-11-26 02:14:12,341 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:14:12,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-26 02:14:12,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-11-26 02:14:12,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-26 02:14:12,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2019-11-26 02:14:12,388 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 8 [2019-11-26 02:14:12,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:14:12,388 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2019-11-26 02:14:12,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:14:12,389 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2019-11-26 02:14:12,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-26 02:14:12,391 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:14:12,391 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-11-26 02:14:12,391 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:14:12,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:14:12,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1925999507, now seen corresponding path program 1 times [2019-11-26 02:14:12,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:14:12,392 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516652879] [2019-11-26 02:14:12,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:14:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:14:12,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:14:12,809 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:14:12,809 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:14:12,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:14:12 BoogieIcfgContainer [2019-11-26 02:14:12,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:14:12,915 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:14:12,915 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:14:12,915 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:14:12,916 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:14:11" (3/4) ... [2019-11-26 02:14:12,918 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:14:13,003 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c64ac8ed-c23d-4b25-8361-dcc39b72c4a4/bin/utaipan/witness.graphml [2019-11-26 02:14:13,004 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:14:13,006 INFO L168 Benchmark]: Toolchain (without parser) took 3156.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 939.3 MB in the beginning and 889.1 MB in the end (delta: 50.2 MB). Peak memory consumption was 195.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:14:13,006 INFO L168 Benchmark]: CDTParser took 0.27 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 02:14:13,007 INFO L168 Benchmark]: CACSL2BoogieTranslator took 535.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -189.2 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:14:13,007 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.37 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:14:13,007 INFO L168 Benchmark]: Boogie Preprocessor took 36.79 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 02:14:13,008 INFO L168 Benchmark]: RCFGBuilder took 1413.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.0 MB in the end (delta: 148.2 MB). Peak memory consumption was 148.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:14:13,008 INFO L168 Benchmark]: TraceAbstraction took 1009.79 ms. Allocated memory is still 1.2 GB. Free memory was 975.0 MB in the beginning and 899.9 MB in the end (delta: 75.2 MB). Peak memory consumption was 75.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:14:13,009 INFO L168 Benchmark]: Witness Printer took 89.13 ms. Allocated memory is still 1.2 GB. Free memory was 899.9 MB in the beginning and 889.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:14:13,011 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 535.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -189.2 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 67.37 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.79 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 1413.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.0 MB in the end (delta: 148.2 MB). Peak memory consumption was 148.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1009.79 ms. Allocated memory is still 1.2 GB. Free memory was 975.0 MB in the beginning and 899.9 MB in the end (delta: 75.2 MB). Peak memory consumption was 75.2 MB. Max. memory is 11.5 GB. * Witness Printer took 89.13 ms. Allocated memory is still 1.2 GB. Free memory was 899.9 MB in the beginning and 889.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 900]: 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; [L545] int cleanupTimeShifts = 4; [L651] int pumpRunning = 0; [L652] int systemActive = 1; [L905] int methAndRunningLastTime ; [L310] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L623] int retValue_acc ; [L624] int tmp ; [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); [L630] tmp = valid_product() [L632] COND TRUE \read(tmp) [L910] methAndRunningLastTime = 0 [L828] int splverifierCounter ; [L829] int tmp ; [L830] int tmp___0 ; [L831] int tmp___1 ; [L832] int tmp___2 ; [L835] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L837] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L839] COND TRUE splverifierCounter < 4 [L845] tmp = __VERIFIER_nondet_int() [L847] COND TRUE \read(tmp) [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L855] tmp___0 = __VERIFIER_nondet_int() [L857] COND TRUE \read(tmp___0) [L77] COND FALSE !(\read(methaneLevelCritical)) [L80] methaneLevelCritical = 1 [L865] tmp___2 = __VERIFIER_nondet_int() [L867] COND FALSE !(\read(tmp___2)) [L873] tmp___1 = __VERIFIER_nondet_int() [L875] COND FALSE !(\read(tmp___1)) [L659] COND FALSE !(\read(pumpRunning)) [L666] COND TRUE \read(systemActive) [L688] int tmp ; [L691] COND TRUE ! pumpRunning [L785] int retValue_acc ; [L786] int tmp ; [L787] int tmp___0 ; [L127] int retValue_acc ; [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); [L791] tmp = isHighWaterSensorDry() [L793] COND FALSE !(\read(tmp)) [L796] tmp___0 = 1 [L798] retValue_acc = tmp___0 [L799] return (retValue_acc); [L693] tmp = isHighWaterLevel() [L695] COND TRUE \read(tmp) [L716] pumpRunning = 1 [L915] int tmp ; [L916] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L920] tmp = isMethaneLevelCritical() [L922] COND TRUE \read(tmp) [L740] int retValue_acc ; [L743] retValue_acc = pumpRunning [L744] return (retValue_acc); [L924] tmp___0 = isPumpRunning() [L926] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L927] COND FALSE !(\read(methAndRunningLastTime)) [L932] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L837] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L839] COND TRUE splverifierCounter < 4 [L845] tmp = __VERIFIER_nondet_int() [L847] COND TRUE \read(tmp) [L65] COND FALSE !(waterLevel < 2) [L855] tmp___0 = __VERIFIER_nondet_int() [L857] COND FALSE !(\read(tmp___0)) [L865] tmp___2 = __VERIFIER_nondet_int() [L867] COND FALSE !(\read(tmp___2)) [L873] tmp___1 = __VERIFIER_nondet_int() [L875] COND FALSE !(\read(tmp___1)) [L659] COND TRUE \read(pumpRunning) [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 [L666] COND TRUE \read(systemActive) [L688] int tmp ; [L691] COND FALSE !(! pumpRunning) [L915] int tmp ; [L916] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L920] tmp = isMethaneLevelCritical() [L922] COND TRUE \read(tmp) [L740] int retValue_acc ; [L743] retValue_acc = pumpRunning [L744] return (retValue_acc); [L924] tmp___0 = isPumpRunning() [L926] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L927] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L900] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 3 error locations. Result: UNSAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 31 SDtfs, 13 SDslu, 19 SDs, 0 SdLazy, 9 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 119 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...