./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.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_0b024920-332c-4fe9-8bf0-767fb4f72fdb/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0b024920-332c-4fe9-8bf0-767fb4f72fdb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0b024920-332c-4fe9-8bf0-767fb4f72fdb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0b024920-332c-4fe9-8bf0-767fb4f72fdb/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0b024920-332c-4fe9-8bf0-767fb4f72fdb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0b024920-332c-4fe9-8bf0-767fb4f72fdb/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 6b0dd49774129de8b6944c8beb9911dd98f5e936 ............................................................................................................................................................................................................................................................................................................................ 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 02:32:48,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:32:48,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:32:48,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:32:48,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:32:48,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:32:48,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:32:48,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:32:48,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:32:48,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:32:48,850 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:32:48,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:32:48,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:32:48,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:32:48,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:32:48,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:32:48,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:32:48,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:32:48,860 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:32:48,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:32:48,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:32:48,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:32:48,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:32:48,872 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:32:48,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:32:48,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:32:48,875 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:32:48,876 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:32:48,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:32:48,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:32:48,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:32:48,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:32:48,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:32:48,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:32:48,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:32:48,881 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:32:48,881 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:32:48,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:32:48,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:32:48,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:32:48,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:32:48,884 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0b024920-332c-4fe9-8bf0-767fb4f72fdb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:32:48,909 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:32:48,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:32:48,910 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:32:48,910 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:32:48,910 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:32:48,911 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:32:48,911 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:32:48,912 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:32:48,912 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:32:48,912 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:32:48,912 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:32:48,912 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:32:48,913 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:32:48,913 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:32:48,913 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:32:48,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:32:48,914 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:32:48,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:32:48,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:32:48,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:32:48,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:32:48,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:32:48,915 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:32:48,916 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:32:48,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:32:48,916 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:32:48,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:32:48,917 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:32:48,917 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:32:48,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:32:48,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:32:48,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:32:48,918 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:32:48,918 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:32:48,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:32:48,918 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:32:48,919 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:32:48,919 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_0b024920-332c-4fe9-8bf0-767fb4f72fdb/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 -> 6b0dd49774129de8b6944c8beb9911dd98f5e936 [2019-11-26 02:32:49,054 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:32:49,063 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:32:49,065 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:32:49,067 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:32:49,067 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:32:49,068 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0b024920-332c-4fe9-8bf0-767fb4f72fdb/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2019-11-26 02:32:49,124 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0b024920-332c-4fe9-8bf0-767fb4f72fdb/bin/utaipan/data/a9df377e9/7a99d0aba0264115b1d3cfdcc873d301/FLAGe3f48aab2 [2019-11-26 02:32:49,605 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:32:49,605 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0b024920-332c-4fe9-8bf0-767fb4f72fdb/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2019-11-26 02:32:49,616 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0b024920-332c-4fe9-8bf0-767fb4f72fdb/bin/utaipan/data/a9df377e9/7a99d0aba0264115b1d3cfdcc873d301/FLAGe3f48aab2 [2019-11-26 02:32:49,628 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0b024920-332c-4fe9-8bf0-767fb4f72fdb/bin/utaipan/data/a9df377e9/7a99d0aba0264115b1d3cfdcc873d301 [2019-11-26 02:32:49,630 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:32:49,631 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:32:49,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:32:49,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:32:49,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:32:49,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:32:49" (1/1) ... [2019-11-26 02:32:49,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79d379a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:32:49, skipping insertion in model container [2019-11-26 02:32:49,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:32:49" (1/1) ... [2019-11-26 02:32:49,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:32:49,680 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:32:50,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:32:50,059 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:32:50,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:32:50,154 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:32:50,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:32:50 WrapperNode [2019-11-26 02:32:50,155 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:32:50,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:32:50,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:32:50,156 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:32:50,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:32:50" (1/1) ... [2019-11-26 02:32:50,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:32:50" (1/1) ... [2019-11-26 02:32:50,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:32:50,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:32:50,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:32:50,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:32:50,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:32:50" (1/1) ... [2019-11-26 02:32:50,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:32:50" (1/1) ... [2019-11-26 02:32:50,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:32:50" (1/1) ... [2019-11-26 02:32:50,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:32:50" (1/1) ... [2019-11-26 02:32:50,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:32:50" (1/1) ... [2019-11-26 02:32:50,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:32:50" (1/1) ... [2019-11-26 02:32:50,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:32:50" (1/1) ... [2019-11-26 02:32:50,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:32:50,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:32:50,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:32:50,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:32:50,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:32:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b024920-332c-4fe9-8bf0-767fb4f72fdb/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 02:32:50,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:32:50,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:32:50,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:32:50,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:32:52,202 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:32:52,203 INFO L284 CfgBuilder]: Removed 168 assume(true) statements. [2019-11-26 02:32:52,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:32:52 BoogieIcfgContainer [2019-11-26 02:32:52,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:32:52,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:32:52,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:32:52,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:32:52,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:32:49" (1/3) ... [2019-11-26 02:32:52,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203ca26d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:32:52, skipping insertion in model container [2019-11-26 02:32:52,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:32:50" (2/3) ... [2019-11-26 02:32:52,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203ca26d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:32:52, skipping insertion in model container [2019-11-26 02:32:52,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:32:52" (3/3) ... [2019-11-26 02:32:52,214 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2019-11-26 02:32:52,223 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:32:52,231 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-26 02:32:52,241 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-26 02:32:52,262 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:32:52,262 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:32:52,263 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:32:52,263 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:32:52,263 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:32:52,263 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:32:52,263 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:32:52,263 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:32:52,275 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-26 02:32:52,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:32:52,280 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:32:52,280 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:32:52,281 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:32:52,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:32:52,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1259814163, now seen corresponding path program 1 times [2019-11-26 02:32:52,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:32:52,292 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015730193] [2019-11-26 02:32:52,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:32:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:32:52,480 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 02:32:52,481 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015730193] [2019-11-26 02:32:52,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:32:52,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:32:52,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488455618] [2019-11-26 02:32:52,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:32:52,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:32:52,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:32:52,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:32:52,497 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-11-26 02:32:52,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:32:52,512 INFO L93 Difference]: Finished difference Result 50 states and 75 transitions. [2019-11-26 02:32:52,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:32:52,513 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-26 02:32:52,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:32:52,521 INFO L225 Difference]: With dead ends: 50 [2019-11-26 02:32:52,521 INFO L226 Difference]: Without dead ends: 24 [2019-11-26 02:32:52,523 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:32:52,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-26 02:32:52,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-26 02:32:52,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-26 02:32:52,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2019-11-26 02:32:52,555 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 8 [2019-11-26 02:32:52,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:32:52,555 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2019-11-26 02:32:52,555 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:32:52,555 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2019-11-26 02:32:52,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:32:52,556 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:32:52,556 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:32:52,556 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:32:52,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:32:52,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1791659862, now seen corresponding path program 1 times [2019-11-26 02:32:52,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:32:52,557 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233279730] [2019-11-26 02:32:52,557 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:32:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:32:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:32:52,984 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:32:52,984 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:32:53,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:32:53 BoogieIcfgContainer [2019-11-26 02:32:53,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:32:53,047 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:32:53,047 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:32:53,048 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:32:53,048 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:32:52" (3/4) ... [2019-11-26 02:32:53,050 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:32:53,171 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0b024920-332c-4fe9-8bf0-767fb4f72fdb/bin/utaipan/witness.graphml [2019-11-26 02:32:53,171 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:32:53,173 INFO L168 Benchmark]: Toolchain (without parser) took 3541.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 951.4 MB in the beginning and 824.7 MB in the end (delta: 126.7 MB). Peak memory consumption was 285.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:32:53,173 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:32:53,174 INFO L168 Benchmark]: CACSL2BoogieTranslator took 523.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:32:53,174 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.35 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 02:32:53,174 INFO L168 Benchmark]: Boogie Preprocessor took 49.16 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: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:32:53,175 INFO L168 Benchmark]: RCFGBuilder took 1932.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 897.5 MB in the end (delta: 228.0 MB). Peak memory consumption was 228.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:32:53,175 INFO L168 Benchmark]: TraceAbstraction took 841.60 ms. Allocated memory is still 1.2 GB. Free memory was 897.5 MB in the beginning and 829.1 MB in the end (delta: 68.4 MB). Peak memory consumption was 68.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:32:53,176 INFO L168 Benchmark]: Witness Printer took 124.16 ms. Allocated memory is still 1.2 GB. Free memory was 829.1 MB in the beginning and 824.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:32:53,178 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 523.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 66.35 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. * Boogie Preprocessor took 49.16 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: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1932.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 897.5 MB in the end (delta: 228.0 MB). Peak memory consumption was 228.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 841.60 ms. Allocated memory is still 1.2 GB. Free memory was 897.5 MB in the beginning and 829.1 MB in the end (delta: 68.4 MB). Peak memory consumption was 68.4 MB. Max. memory is 11.5 GB. * Witness Printer took 124.16 ms. Allocated memory is still 1.2 GB. Free memory was 829.1 MB in the beginning and 824.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 221]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L229] int waterLevel = 1; [L230] int methaneLevelCritical = 0; [L327] int pumpRunning = 0; [L328] int systemActive = 1; [L766] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L529] int splverifierCounter ; [L530] int tmp ; [L531] int tmp___0 ; [L532] int tmp___1 ; [L533] int tmp___2 ; [L536] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L538] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L540] COND TRUE splverifierCounter < 4 [L546] tmp = __VERIFIER_nondet_int() [L548] COND TRUE \read(tmp) [L247] COND TRUE waterLevel < 2 [L248] waterLevel = waterLevel + 1 [L556] tmp___0 = __VERIFIER_nondet_int() [L558] COND FALSE !(\read(tmp___0)) [L566] tmp___2 = __VERIFIER_nondet_int() [L568] COND FALSE !(\read(tmp___2)) [L574] tmp___1 = __VERIFIER_nondet_int() [L576] COND TRUE \read(tmp___1) [L508] COND FALSE !(\read(pumpRunning)) [L515] systemActive = 0 [L334] COND FALSE !(\read(pumpRunning)) [L341] COND FALSE !(\read(systemActive)) [L184] int tmp ; [L185] int tmp___0 ; [L186] int tmp___1 ; [L268] int retValue_acc ; [L271] retValue_acc = methaneLevelCritical [L272] return (retValue_acc); [L190] tmp = isMethaneLevelCritical() [L192] COND FALSE !(\read(tmp)) [L300] int retValue_acc ; [L303] retValue_acc = waterLevel [L304] return (retValue_acc); [L196] tmp___0 = getWaterLevel() [L198] COND TRUE tmp___0 == 2 [L441] int retValue_acc ; [L444] retValue_acc = pumpRunning [L445] return (retValue_acc); [L200] tmp___1 = isPumpRunning() [L202] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L221] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 3 error locations. Result: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 34 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...