./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_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_be3629bb-f22c-498b-95a4-aea522659f79/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_be3629bb-f22c-498b-95a4-aea522659f79/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_be3629bb-f22c-498b-95a4-aea522659f79/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_be3629bb-f22c-498b-95a4-aea522659f79/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_be3629bb-f22c-498b-95a4-aea522659f79/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_be3629bb-f22c-498b-95a4-aea522659f79/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 9eb4b34c09edb6dce3c64c5d30aa92b31214d915 ....................................................................................................................................................................................................................................................................................................................................... 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 02:46:43,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:46:43,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:46:43,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:46:43,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:46:43,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:46:43,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:46:43,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:46:43,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:46:43,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:46:43,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:46:43,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:46:43,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:46:43,823 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:46:43,824 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:46:43,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:46:43,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:46:43,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:46:43,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:46:43,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:46:43,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:46:43,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:46:43,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:46:43,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:46:43,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:46:43,845 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:46:43,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:46:43,847 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:46:43,847 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:46:43,848 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:46:43,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:46:43,849 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:46:43,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:46:43,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:46:43,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:46:43,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:46:43,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:46:43,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:46:43,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:46:43,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:46:43,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:46:43,855 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_be3629bb-f22c-498b-95a4-aea522659f79/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:46:43,869 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:46:43,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:46:43,870 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:46:43,870 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:46:43,870 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:46:43,870 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:46:43,870 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:46:43,870 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:46:43,871 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:46:43,871 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:46:43,871 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:46:43,871 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:46:43,871 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:46:43,871 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:46:43,872 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:46:43,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:46:43,872 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:46:43,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:46:43,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:46:43,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:46:43,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:46:43,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:46:43,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:46:43,874 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:46:43,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:46:43,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:46:43,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:46:43,874 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:46:43,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:46:43,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:46:43,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:46:43,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:46:43,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:46:43,875 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:46:43,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:46:43,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:46:43,876 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:46:43,876 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_be3629bb-f22c-498b-95a4-aea522659f79/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 -> 9eb4b34c09edb6dce3c64c5d30aa92b31214d915 [2019-11-26 02:46:44,017 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:46:44,027 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:46:44,030 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:46:44,031 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:46:44,031 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:46:44,032 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_be3629bb-f22c-498b-95a4-aea522659f79/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2019-11-26 02:46:44,080 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_be3629bb-f22c-498b-95a4-aea522659f79/bin/utaipan/data/2929e8c73/3215c499a2e94705a464e893a0579590/FLAG08867e940 [2019-11-26 02:46:44,516 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:46:44,519 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_be3629bb-f22c-498b-95a4-aea522659f79/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2019-11-26 02:46:44,533 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_be3629bb-f22c-498b-95a4-aea522659f79/bin/utaipan/data/2929e8c73/3215c499a2e94705a464e893a0579590/FLAG08867e940 [2019-11-26 02:46:44,545 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_be3629bb-f22c-498b-95a4-aea522659f79/bin/utaipan/data/2929e8c73/3215c499a2e94705a464e893a0579590 [2019-11-26 02:46:44,547 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:46:44,548 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:46:44,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:46:44,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:46:44,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:46:44,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:46:44" (1/1) ... [2019-11-26 02:46:44,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32ccfaa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:44, skipping insertion in model container [2019-11-26 02:46:44,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:46:44" (1/1) ... [2019-11-26 02:46:44,563 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:46:44,621 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:46:44,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:46:44,951 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:46:45,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:46:45,053 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:46:45,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:45 WrapperNode [2019-11-26 02:46:45,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:46:45,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:46:45,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:46:45,055 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:46:45,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:45" (1/1) ... [2019-11-26 02:46:45,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:45" (1/1) ... [2019-11-26 02:46:45,126 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:46:45,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:46:45,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:46:45,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:46:45,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:45" (1/1) ... [2019-11-26 02:46:45,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:45" (1/1) ... [2019-11-26 02:46:45,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:45" (1/1) ... [2019-11-26 02:46:45,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:45" (1/1) ... [2019-11-26 02:46:45,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:45" (1/1) ... [2019-11-26 02:46:45,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:45" (1/1) ... [2019-11-26 02:46:45,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:45" (1/1) ... [2019-11-26 02:46:45,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:46:45,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:46:45,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:46:45,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:46:45,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be3629bb-f22c-498b-95a4-aea522659f79/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 02:46:45,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:46:45,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:46:45,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:46:45,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:46:46,658 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:46:46,658 INFO L284 CfgBuilder]: Removed 102 assume(true) statements. [2019-11-26 02:46:46,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:46:46 BoogieIcfgContainer [2019-11-26 02:46:46,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:46:46,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:46:46,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:46:46,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:46:46,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:46:44" (1/3) ... [2019-11-26 02:46:46,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@639a0443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:46:46, skipping insertion in model container [2019-11-26 02:46:46,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:45" (2/3) ... [2019-11-26 02:46:46,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@639a0443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:46:46, skipping insertion in model container [2019-11-26 02:46:46,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:46:46" (3/3) ... [2019-11-26 02:46:46,673 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2019-11-26 02:46:46,681 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:46:46,688 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-26 02:46:46,699 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-26 02:46:46,726 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:46:46,726 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:46:46,727 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:46:46,727 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:46:46,727 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:46:46,728 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:46:46,729 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:46:46,729 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:46:46,748 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-26 02:46:46,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:46:46,757 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:46:46,758 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:46:46,758 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:46:46,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:46:46,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1424052091, now seen corresponding path program 1 times [2019-11-26 02:46:46,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:46:46,773 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24676854] [2019-11-26 02:46:46,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:46:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:46:47,044 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 02:46:47,045 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24676854] [2019-11-26 02:46:47,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:46:47,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:46:47,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024933918] [2019-11-26 02:46:47,051 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:46:47,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:46:47,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:46:47,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:46:47,067 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2019-11-26 02:46:47,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:46:47,087 INFO L93 Difference]: Finished difference Result 44 states and 63 transitions. [2019-11-26 02:46:47,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:46:47,089 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-26 02:46:47,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:46:47,099 INFO L225 Difference]: With dead ends: 44 [2019-11-26 02:46:47,099 INFO L226 Difference]: Without dead ends: 21 [2019-11-26 02:46:47,102 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 02:46:47,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-26 02:46:47,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-26 02:46:47,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-26 02:46:47,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2019-11-26 02:46:47,136 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 7 [2019-11-26 02:46:47,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:46:47,136 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-11-26 02:46:47,137 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:46:47,137 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-11-26 02:46:47,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:46:47,137 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:46:47,138 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:46:47,138 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:46:47,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:46:47,139 INFO L82 PathProgramCache]: Analyzing trace with hash -1732983413, now seen corresponding path program 1 times [2019-11-26 02:46:47,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:46:47,139 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230936664] [2019-11-26 02:46:47,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:46:47,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:46:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:46:47,486 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:46:47,486 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:46:47,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:46:47 BoogieIcfgContainer [2019-11-26 02:46:47,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:46:47,571 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:46:47,572 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:46:47,572 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:46:47,573 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:46:46" (3/4) ... [2019-11-26 02:46:47,577 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:46:47,684 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_be3629bb-f22c-498b-95a4-aea522659f79/bin/utaipan/witness.graphml [2019-11-26 02:46:47,684 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:46:47,686 INFO L168 Benchmark]: Toolchain (without parser) took 3137.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.7 MB in the beginning and 922.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 162.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:46:47,687 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:46:47,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 504.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -184.0 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:46:47,688 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.98 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 02:46:47,689 INFO L168 Benchmark]: Boogie Preprocessor took 50.04 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 02:46:47,689 INFO L168 Benchmark]: RCFGBuilder took 1483.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.9 MB in the end (delta: 136.1 MB). Peak memory consumption was 136.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:46:47,690 INFO L168 Benchmark]: TraceAbstraction took 909.27 ms. Allocated memory is still 1.2 GB. Free memory was 981.9 MB in the beginning and 933.5 MB in the end (delta: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:46:47,690 INFO L168 Benchmark]: Witness Printer took 113.03 ms. Allocated memory is still 1.2 GB. Free memory was 933.5 MB in the beginning and 922.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:46:47,693 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 504.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -184.0 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 71.98 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 50.04 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 1483.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.9 MB in the end (delta: 136.1 MB). Peak memory consumption was 136.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 909.27 ms. Allocated memory is still 1.2 GB. Free memory was 981.9 MB in the beginning and 933.5 MB in the end (delta: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. * Witness Printer took 113.03 ms. Allocated memory is still 1.2 GB. Free memory was 933.5 MB in the beginning and 922.8 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: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L239] int waterLevel = 1; [L240] int methaneLevelCritical = 0; [L833] int cleanupTimeShifts = 4; [L610] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L906] int retValue_acc ; [L907] int tmp ; [L432] int retValue_acc ; [L435] retValue_acc = 1 [L436] return (retValue_acc); [L913] tmp = valid_product() [L915] COND TRUE \read(tmp) [L335] int splverifierCounter ; [L336] int tmp ; [L337] int tmp___0 ; [L338] int tmp___1 ; [L339] int tmp___2 ; [L342] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L344] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L346] COND TRUE splverifierCounter < 4 [L352] tmp = __VERIFIER_nondet_int() [L354] COND TRUE \read(tmp) [L257] COND TRUE waterLevel < 2 [L258] waterLevel = waterLevel + 1 [L362] tmp___0 = __VERIFIER_nondet_int() [L364] COND TRUE \read(tmp___0) [L269] COND FALSE !(\read(methaneLevelCritical)) [L272] methaneLevelCritical = 1 [L372] tmp___2 = __VERIFIER_nondet_int() [L374] COND FALSE !(\read(tmp___2)) [L380] tmp___1 = __VERIFIER_nondet_int() [L382] COND FALSE !(\read(tmp___1)) [L68] COND FALSE !(\read(pumpRunning)) [L75] COND TRUE \read(systemActive) [L97] int tmp ; [L100] COND TRUE ! pumpRunning [L194] int retValue_acc ; [L195] int tmp ; [L196] int tmp___0 ; [L319] int retValue_acc ; [L322] COND FALSE !(waterLevel < 2) [L326] retValue_acc = 0 [L327] return (retValue_acc); [L200] tmp = isHighWaterSensorDry() [L202] COND FALSE !(\read(tmp)) [L205] tmp___0 = 1 [L207] retValue_acc = tmp___0 [L208] return (retValue_acc); [L102] tmp = isHighWaterLevel() [L104] COND TRUE \read(tmp) [L125] pumpRunning = 1 [L808] int tmp ; [L809] int tmp___0 ; [L278] int retValue_acc ; [L281] retValue_acc = methaneLevelCritical [L282] return (retValue_acc); [L813] tmp = isMethaneLevelCritical() [L815] COND TRUE \read(tmp) [L149] int retValue_acc ; [L152] retValue_acc = pumpRunning [L153] return (retValue_acc); [L817] tmp___0 = isPumpRunning() [L819] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L44] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 3 error locations. Result: UNSAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 28 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=23occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 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...