./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product16.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_6712a022-796a-44eb-9de6-3d8724d6e40d/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6712a022-796a-44eb-9de6-3d8724d6e40d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6712a022-796a-44eb-9de6-3d8724d6e40d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6712a022-796a-44eb-9de6-3d8724d6e40d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6712a022-796a-44eb-9de6-3d8724d6e40d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6712a022-796a-44eb-9de6-3d8724d6e40d/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 09e3ebf9e88b37df43a29457dc1ad9a694c62daa ....................................................................................................................................................................................................................................................................................... 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 02:34:51,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:34:51,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:34:51,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:34:51,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:34:51,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:34:51,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:34:51,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:34:51,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:34:51,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:34:51,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:34:51,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:34:51,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:34:51,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:34:51,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:34:51,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:34:51,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:34:51,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:34:51,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:34:51,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:34:51,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:34:51,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:34:51,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:34:51,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:34:51,875 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:34:51,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:34:51,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:34:51,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:34:51,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:34:51,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:34:51,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:34:51,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:34:51,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:34:51,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:34:51,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:34:51,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:34:51,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:34:51,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:34:51,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:34:51,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:34:51,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:34:51,886 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6712a022-796a-44eb-9de6-3d8724d6e40d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:34:51,911 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:34:51,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:34:51,911 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:34:51,912 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:34:51,912 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:34:51,912 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:34:51,912 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:34:51,912 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:34:51,913 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:34:51,913 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:34:51,913 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:34:51,913 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:34:51,913 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:34:51,914 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:34:51,914 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:34:51,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:34:51,915 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:34:51,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:34:51,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:34:51,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:34:51,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:34:51,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:34:51,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:34:51,916 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:34:51,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:34:51,916 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:34:51,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:34:51,916 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:34:51,917 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:34:51,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:34:51,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:34:51,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:34:51,918 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:34:51,918 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:34:51,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:34:51,918 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:34:51,918 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:34:51,918 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_6712a022-796a-44eb-9de6-3d8724d6e40d/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 -> 09e3ebf9e88b37df43a29457dc1ad9a694c62daa [2019-11-26 02:34:52,101 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:34:52,116 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:34:52,119 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:34:52,120 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:34:52,121 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:34:52,122 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6712a022-796a-44eb-9de6-3d8724d6e40d/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c [2019-11-26 02:34:52,178 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6712a022-796a-44eb-9de6-3d8724d6e40d/bin/utaipan/data/f66cb18a9/bde87aa8922943aa8bbfd2802fd02060/FLAG94a85c7ea [2019-11-26 02:34:52,667 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:34:52,668 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6712a022-796a-44eb-9de6-3d8724d6e40d/sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c [2019-11-26 02:34:52,691 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6712a022-796a-44eb-9de6-3d8724d6e40d/bin/utaipan/data/f66cb18a9/bde87aa8922943aa8bbfd2802fd02060/FLAG94a85c7ea [2019-11-26 02:34:53,198 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6712a022-796a-44eb-9de6-3d8724d6e40d/bin/utaipan/data/f66cb18a9/bde87aa8922943aa8bbfd2802fd02060 [2019-11-26 02:34:53,200 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:34:53,201 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:34:53,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:34:53,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:34:53,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:34:53,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:34:53" (1/1) ... [2019-11-26 02:34:53,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68b275ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:34:53, skipping insertion in model container [2019-11-26 02:34:53,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:34:53" (1/1) ... [2019-11-26 02:34:53,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:34:53,263 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:34:53,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:34:53,619 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:34:53,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:34:53,720 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:34:53,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:34:53 WrapperNode [2019-11-26 02:34:53,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:34:53,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:34:53,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:34:53,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:34:53,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:34:53" (1/1) ... [2019-11-26 02:34:53,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:34:53" (1/1) ... [2019-11-26 02:34:53,796 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:34:53,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:34:53,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:34:53,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:34:53,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:34:53" (1/1) ... [2019-11-26 02:34:53,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:34:53" (1/1) ... [2019-11-26 02:34:53,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:34:53" (1/1) ... [2019-11-26 02:34:53,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:34:53" (1/1) ... [2019-11-26 02:34:53,820 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:34:53" (1/1) ... [2019-11-26 02:34:53,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:34:53" (1/1) ... [2019-11-26 02:34:53,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:34:53" (1/1) ... [2019-11-26 02:34:53,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:34:53,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:34:53,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:34:53,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:34:53,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:34:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6712a022-796a-44eb-9de6-3d8724d6e40d/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 02:34:53,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:34:53,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:34:53,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:34:53,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:34:55,121 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:34:55,121 INFO L284 CfgBuilder]: Removed 108 assume(true) statements. [2019-11-26 02:34:55,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:34:55 BoogieIcfgContainer [2019-11-26 02:34:55,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:34:55,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:34:55,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:34:55,126 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:34:55,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:34:53" (1/3) ... [2019-11-26 02:34:55,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7116fbef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:34:55, skipping insertion in model container [2019-11-26 02:34:55,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:34:53" (2/3) ... [2019-11-26 02:34:55,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7116fbef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:34:55, skipping insertion in model container [2019-11-26 02:34:55,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:34:55" (3/3) ... [2019-11-26 02:34:55,133 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product16.cil.c [2019-11-26 02:34:55,142 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:34:55,150 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-26 02:34:55,160 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-26 02:34:55,186 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:34:55,186 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:34:55,186 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:34:55,187 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:34:55,187 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:34:55,187 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:34:55,187 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:34:55,187 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:34:55,206 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-26 02:34:55,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:34:55,213 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:34:55,213 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:34:55,214 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:34:55,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:34:55,219 INFO L82 PathProgramCache]: Analyzing trace with hash -2136274121, now seen corresponding path program 1 times [2019-11-26 02:34:55,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:34:55,229 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108863742] [2019-11-26 02:34:55,229 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:34:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:34:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:34:55,659 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:34:55,660 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:34:55,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:34:55 BoogieIcfgContainer [2019-11-26 02:34:55,718 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:34:55,718 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:34:55,718 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:34:55,719 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:34:55,719 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:34:55" (3/4) ... [2019-11-26 02:34:55,721 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:34:55,807 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6712a022-796a-44eb-9de6-3d8724d6e40d/bin/utaipan/witness.graphml [2019-11-26 02:34:55,807 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:34:55,809 INFO L168 Benchmark]: Toolchain (without parser) took 2607.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 950.1 MB in the beginning and 955.4 MB in the end (delta: -5.3 MB). Peak memory consumption was 135.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:34:55,810 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:34:55,811 INFO L168 Benchmark]: CACSL2BoogieTranslator took 518.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -179.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:34:55,811 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.07 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 02:34:55,812 INFO L168 Benchmark]: Boogie Preprocessor took 47.79 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 02:34:55,812 INFO L168 Benchmark]: RCFGBuilder took 1278.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 998.4 MB in the end (delta: 120.0 MB). Peak memory consumption was 120.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:34:55,813 INFO L168 Benchmark]: TraceAbstraction took 594.67 ms. Allocated memory is still 1.2 GB. Free memory was 998.4 MB in the beginning and 960.8 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:34:55,813 INFO L168 Benchmark]: Witness Printer took 89.15 ms. Allocated memory is still 1.2 GB. Free memory was 960.8 MB in the beginning and 955.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:34:55,816 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 518.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -179.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.07 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 47.79 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 1278.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 998.4 MB in the end (delta: 120.0 MB). Peak memory consumption was 120.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 594.67 ms. Allocated memory is still 1.2 GB. Free memory was 998.4 MB in the beginning and 960.8 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Witness Printer took 89.15 ms. Allocated memory is still 1.2 GB. Free memory was 960.8 MB in the beginning and 955.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int cleanupTimeShifts = 4; [L596] int pumpRunning = 0; [L597] int systemActive = 1; [L806] int waterLevel = 1; [L807] int methaneLevelCritical = 0; [L322] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L130] int retValue_acc ; [L131] int tmp ; [L796] int retValue_acc ; [L799] retValue_acc = 1 [L800] return (retValue_acc); [L137] tmp = valid_product() [L139] COND TRUE \read(tmp) [L522] int splverifierCounter ; [L523] int tmp ; [L524] int tmp___0 ; [L525] int tmp___1 ; [L526] int tmp___2 ; [L529] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L531] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L533] COND TRUE splverifierCounter < 4 [L539] tmp = __VERIFIER_nondet_int() [L541] COND TRUE \read(tmp) [L824] COND TRUE waterLevel < 2 [L825] waterLevel = waterLevel + 1 [L549] tmp___0 = __VERIFIER_nondet_int() [L551] COND FALSE !(\read(tmp___0)) [L559] tmp___2 = __VERIFIER_nondet_int() [L561] COND FALSE !(\read(tmp___2)) [L567] tmp___1 = __VERIFIER_nondet_int() [L569] COND FALSE !(\read(tmp___1)) [L604] COND FALSE !(\read(pumpRunning)) [L611] COND TRUE \read(systemActive) [L633] int tmp ; [L636] COND FALSE !(\read(pumpRunning)) [L887] int tmp ; [L888] int tmp___0 ; [L889] int tmp___1 ; [L845] int retValue_acc ; [L848] retValue_acc = methaneLevelCritical [L849] return (retValue_acc); [L893] tmp = isMethaneLevelCritical() [L895] COND FALSE !(\read(tmp)) [L877] int retValue_acc ; [L880] retValue_acc = waterLevel [L881] return (retValue_acc); [L899] tmp___0 = getWaterLevel() [L901] COND TRUE tmp___0 == 2 [L702] int retValue_acc ; [L705] retValue_acc = pumpRunning [L706] return (retValue_acc); [L903] tmp___1 = isPumpRunning() [L905] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L44] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 3 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...