./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.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_7c59c955-f47d-43ac-9c11-7c505a25a21d/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7c59c955-f47d-43ac-9c11-7c505a25a21d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7c59c955-f47d-43ac-9c11-7c505a25a21d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7c59c955-f47d-43ac-9c11-7c505a25a21d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7c59c955-f47d-43ac-9c11-7c505a25a21d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7c59c955-f47d-43ac-9c11-7c505a25a21d/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 2bf5cdbd1397f8c2609b4d66a963cb35955afadc .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 02:35:25,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:35:25,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:35:25,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:35:25,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:35:25,637 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:35:25,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:35:25,648 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:35:25,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:35:25,658 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:35:25,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:35:25,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:35:25,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:35:25,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:35:25,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:35:25,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:35:25,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:35:25,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:35:25,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:35:25,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:35:25,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:35:25,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:35:25,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:35:25,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:35:25,684 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:35:25,685 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:35:25,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:35:25,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:35:25,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:35:25,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:35:25,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:35:25,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:35:25,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:35:25,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:35:25,691 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:35:25,691 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:35:25,692 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:35:25,692 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:35:25,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:35:25,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:35:25,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:35:25,695 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7c59c955-f47d-43ac-9c11-7c505a25a21d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:35:25,721 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:35:25,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:35:25,732 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:35:25,732 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:35:25,732 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:35:25,732 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:35:25,733 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:35:25,733 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:35:25,733 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:35:25,733 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:35:25,733 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:35:25,734 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:35:25,734 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:35:25,734 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:35:25,734 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:35:25,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:35:25,736 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:35:25,736 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:35:25,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:35:25,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:35:25,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:35:25,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:35:25,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:35:25,738 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:35:25,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:35:25,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:35:25,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:35:25,739 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:35:25,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:35:25,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:35:25,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:35:25,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:35:25,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:35:25,740 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:35:25,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:35:25,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:35:25,741 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:35:25,741 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_7c59c955-f47d-43ac-9c11-7c505a25a21d/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 -> 2bf5cdbd1397f8c2609b4d66a963cb35955afadc [2019-11-26 02:35:25,887 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:35:25,899 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:35:25,902 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:35:25,903 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:35:25,904 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:35:25,905 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7c59c955-f47d-43ac-9c11-7c505a25a21d/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2019-11-26 02:35:25,967 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7c59c955-f47d-43ac-9c11-7c505a25a21d/bin/utaipan/data/0bc49d530/712d280778dd44388f4610effaceafaa/FLAGe14678f81 [2019-11-26 02:35:26,448 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:35:26,449 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7c59c955-f47d-43ac-9c11-7c505a25a21d/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2019-11-26 02:35:26,463 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7c59c955-f47d-43ac-9c11-7c505a25a21d/bin/utaipan/data/0bc49d530/712d280778dd44388f4610effaceafaa/FLAGe14678f81 [2019-11-26 02:35:26,754 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7c59c955-f47d-43ac-9c11-7c505a25a21d/bin/utaipan/data/0bc49d530/712d280778dd44388f4610effaceafaa [2019-11-26 02:35:26,757 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:35:26,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:35:26,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:35:26,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:35:26,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:35:26,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:35:26" (1/1) ... [2019-11-26 02:35:26,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42962096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:26, skipping insertion in model container [2019-11-26 02:35:26,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:35:26" (1/1) ... [2019-11-26 02:35:26,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:35:26,850 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:35:27,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:35:27,297 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:35:27,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:35:27,470 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:35:27,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:27 WrapperNode [2019-11-26 02:35:27,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:35:27,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:35:27,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:35:27,472 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:35:27,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:27" (1/1) ... [2019-11-26 02:35:27,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:27" (1/1) ... [2019-11-26 02:35:27,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:35:27,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:35:27,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:35:27,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:35:27,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:27" (1/1) ... [2019-11-26 02:35:27,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:27" (1/1) ... [2019-11-26 02:35:27,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:27" (1/1) ... [2019-11-26 02:35:27,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:27" (1/1) ... [2019-11-26 02:35:27,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:27" (1/1) ... [2019-11-26 02:35:27,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:27" (1/1) ... [2019-11-26 02:35:27,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:27" (1/1) ... [2019-11-26 02:35:27,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:35:27,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:35:27,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:35:27,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:35:27,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7c59c955-f47d-43ac-9c11-7c505a25a21d/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 02:35:27,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:35:27,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:35:27,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:35:27,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:35:29,211 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:35:29,211 INFO L284 CfgBuilder]: Removed 96 assume(true) statements. [2019-11-26 02:35:29,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:35:29 BoogieIcfgContainer [2019-11-26 02:35:29,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:35:29,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:35:29,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:35:29,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:35:29,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:35:26" (1/3) ... [2019-11-26 02:35:29,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@336ef3f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:35:29, skipping insertion in model container [2019-11-26 02:35:29,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:27" (2/3) ... [2019-11-26 02:35:29,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@336ef3f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:35:29, skipping insertion in model container [2019-11-26 02:35:29,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:35:29" (3/3) ... [2019-11-26 02:35:29,225 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2019-11-26 02:35:29,236 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:35:29,243 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-26 02:35:29,254 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-26 02:35:29,279 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:35:29,279 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:35:29,279 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:35:29,279 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:35:29,279 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:35:29,280 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:35:29,280 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:35:29,280 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:35:29,292 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-26 02:35:29,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:35:29,296 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:35:29,297 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:35:29,297 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:35:29,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:35:29,301 INFO L82 PathProgramCache]: Analyzing trace with hash 243012509, now seen corresponding path program 1 times [2019-11-26 02:35:29,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:35:29,309 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45507413] [2019-11-26 02:35:29,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:35:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:35:29,651 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 02:35:29,652 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45507413] [2019-11-26 02:35:29,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:35:29,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:35:29,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546746076] [2019-11-26 02:35:29,659 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:35:29,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:35:29,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:35:29,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:35:29,676 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2019-11-26 02:35:29,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:35:29,793 INFO L93 Difference]: Finished difference Result 61 states and 87 transitions. [2019-11-26 02:35:29,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:35:29,796 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-26 02:35:29,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:35:29,809 INFO L225 Difference]: With dead ends: 61 [2019-11-26 02:35:29,809 INFO L226 Difference]: Without dead ends: 27 [2019-11-26 02:35:29,814 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:35:29,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-26 02:35:29,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2019-11-26 02:35:29,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-26 02:35:29,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2019-11-26 02:35:29,862 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 7 [2019-11-26 02:35:29,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:35:29,862 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2019-11-26 02:35:29,863 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:35:29,863 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2019-11-26 02:35:29,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:35:29,864 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:35:29,865 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-11-26 02:35:29,865 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:35:29,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:35:29,866 INFO L82 PathProgramCache]: Analyzing trace with hash 956753898, now seen corresponding path program 1 times [2019-11-26 02:35:29,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:35:29,866 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870236568] [2019-11-26 02:35:29,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:35:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:35:30,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:35:30,184 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870236568] [2019-11-26 02:35:30,184 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150167345] [2019-11-26 02:35:30,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7c59c955-f47d-43ac-9c11-7c505a25a21d/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:35:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:35:30,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 26 conjunts are in the unsatisfiable core [2019-11-26 02:35:30,365 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:35:30,401 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,403 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,502 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,503 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,504 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,505 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,528 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:35:30,528 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:35:30,546 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,546 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,703 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,713 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,716 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,719 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:35:30,721 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,726 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,729 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,735 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,738 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,740 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:35:30,742 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:35:30,748 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:35:30,752 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,753 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,756 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,758 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,762 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,767 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:35:30,769 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,772 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,774 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,777 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,779 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:35:30,781 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,782 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:35:30,784 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:35:30,788 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,789 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,791 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,797 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:35:30,801 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,804 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,810 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:35:30,812 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,815 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,817 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,835 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,839 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:35:30,841 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,843 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,846 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,851 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,852 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,853 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:30,854 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:31,245 WARN L192 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 21 [2019-11-26 02:35:31,248 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:35:31,248 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1269494811] [2019-11-26 02:35:31,282 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2019-11-26 02:35:31,288 INFO L166 IcfgInterpreter]: Building call graph [2019-11-26 02:35:31,294 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-26 02:35:31,300 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-26 02:35:31,300 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-26 02:35:41,942 WARN L192 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 476 [2019-11-26 02:35:43,932 WARN L192 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-26 02:35:44,111 WARN L192 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 484 [2019-11-26 02:35:44,638 WARN L192 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 577 [2019-11-26 02:35:45,463 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-26 02:35:47,552 WARN L192 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 337 DAG size of output: 191 [2019-11-26 02:35:51,509 WARN L192 SmtUtils]: Spent 3.75 s on a formula simplification. DAG size of input: 484 DAG size of output: 429 [2019-11-26 02:35:52,507 WARN L192 SmtUtils]: Spent 901.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 149 [2019-11-26 02:35:54,921 WARN L192 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 325 DAG size of output: 212 [2019-11-26 02:35:55,018 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-26 02:35:55,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-11-26 02:35:55,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2019-11-26 02:35:55,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170255242] [2019-11-26 02:35:55,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-26 02:35:55,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:35:55,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-26 02:35:55,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2019-11-26 02:35:55,021 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 15 states. [2019-11-26 02:35:55,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:35:55,300 INFO L93 Difference]: Finished difference Result 61 states and 74 transitions. [2019-11-26 02:35:55,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 02:35:55,301 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 10 [2019-11-26 02:35:55,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:35:55,302 INFO L225 Difference]: With dead ends: 61 [2019-11-26 02:35:55,302 INFO L226 Difference]: Without dead ends: 42 [2019-11-26 02:35:55,304 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2019-11-26 02:35:55,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-26 02:35:55,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 29. [2019-11-26 02:35:55,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-26 02:35:55,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-11-26 02:35:55,311 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 10 [2019-11-26 02:35:55,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:35:55,311 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2019-11-26 02:35:55,311 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-26 02:35:55,311 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2019-11-26 02:35:55,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-26 02:35:55,312 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:35:55,312 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1] [2019-11-26 02:35:55,516 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:35:55,516 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:35:55,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:35:55,517 INFO L82 PathProgramCache]: Analyzing trace with hash -356608899, now seen corresponding path program 2 times [2019-11-26 02:35:55,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:35:55,518 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625451805] [2019-11-26 02:35:55,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:35:55,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:35:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:35:55,878 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:35:55,878 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:35:56,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:35:56 BoogieIcfgContainer [2019-11-26 02:35:56,020 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:35:56,021 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:35:56,021 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:35:56,022 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:35:56,022 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:35:29" (3/4) ... [2019-11-26 02:35:56,025 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:35:56,134 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7c59c955-f47d-43ac-9c11-7c505a25a21d/bin/utaipan/witness.graphml [2019-11-26 02:35:56,135 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:35:56,136 INFO L168 Benchmark]: Toolchain (without parser) took 29378.31 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 498.6 MB). Free memory was 940.7 MB in the beginning and 845.5 MB in the end (delta: 95.1 MB). Peak memory consumption was 593.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:35:56,137 INFO L168 Benchmark]: CDTParser took 0.28 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 02:35:56,137 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -175.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:35:56,138 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.56 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:35:56,138 INFO L168 Benchmark]: Boogie Preprocessor took 40.08 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 02:35:56,139 INFO L168 Benchmark]: RCFGBuilder took 1627.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.9 MB in the end (delta: 135.8 MB). Peak memory consumption was 135.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:35:56,139 INFO L168 Benchmark]: TraceAbstraction took 26806.07 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 364.9 MB). Free memory was 973.9 MB in the beginning and 848.5 MB in the end (delta: 125.4 MB). Peak memory consumption was 490.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:35:56,139 INFO L168 Benchmark]: Witness Printer took 113.82 ms. Allocated memory is still 1.5 GB. Free memory was 848.5 MB in the beginning and 845.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:35:56,142 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 712.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -175.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 72.56 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.08 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 1627.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.9 MB in the end (delta: 135.8 MB). Peak memory consumption was 135.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 26806.07 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 364.9 MB). Free memory was 973.9 MB in the beginning and 848.5 MB in the end (delta: 125.4 MB). Peak memory consumption was 490.4 MB. Max. memory is 11.5 GB. * Witness Printer took 113.82 ms. Allocated memory is still 1.5 GB. Free memory was 848.5 MB in the beginning and 845.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 869]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L406] int cleanupTimeShifts = 4; [L615] int waterLevel = 1; [L616] int methaneLevelCritical = 0; [L712] int pumpRunning = 0; [L713] int systemActive = 1; [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L487] int retValue_acc ; [L488] int tmp ; [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) [L546] int splverifierCounter ; [L547] int tmp ; [L548] int tmp___0 ; [L549] int tmp___1 ; [L550] int tmp___2 ; [L553] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L555] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L557] COND TRUE splverifierCounter < 4 [L563] tmp = __VERIFIER_nondet_int() [L565] COND TRUE \read(tmp) [L633] COND TRUE waterLevel < 2 [L634] waterLevel = waterLevel + 1 [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___2)) [L589] tmp___1 = __VERIFIER_nondet_int() [L591] COND TRUE \read(tmp___1) [L720] COND FALSE !(\read(pumpRunning)) [L727] COND TRUE \read(systemActive) [L749] int tmp ; [L752] COND TRUE ! pumpRunning [L846] int retValue_acc ; [L847] int tmp ; [L848] int tmp___0 ; [L695] int retValue_acc ; [L698] COND FALSE !(waterLevel < 2) [L702] retValue_acc = 0 [L703] return (retValue_acc); [L852] tmp = isHighWaterSensorDry() [L854] COND FALSE !(\read(tmp)) [L857] tmp___0 = 1 [L859] retValue_acc = tmp___0 [L860] return (retValue_acc); [L754] tmp = isHighWaterLevel() [L756] COND TRUE \read(tmp) [L777] pumpRunning = 1 [L875] int tmp ; [L876] int tmp___0 ; [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); [L880] tmp = getWaterLevel() [L882] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L555] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L557] COND TRUE splverifierCounter < 4 [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) [L720] COND TRUE \read(pumpRunning) [L621] COND TRUE waterLevel > 0 [L622] waterLevel = waterLevel - 1 [L727] COND TRUE \read(systemActive) [L749] int tmp ; [L752] COND FALSE !(! pumpRunning) [L875] int tmp ; [L876] int tmp___0 ; [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); [L880] tmp = getWaterLevel() [L882] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L555] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L557] COND TRUE splverifierCounter < 4 [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND TRUE \read(tmp___0) [L645] COND FALSE !(\read(methaneLevelCritical)) [L648] methaneLevelCritical = 1 [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___2)) [L589] tmp___1 = __VERIFIER_nondet_int() [L591] COND FALSE !(\read(tmp___1)) [L720] COND TRUE \read(pumpRunning) [L621] COND TRUE waterLevel > 0 [L622] waterLevel = waterLevel - 1 [L727] COND TRUE \read(systemActive) [L749] int tmp ; [L752] COND FALSE !(! pumpRunning) [L875] int tmp ; [L876] int tmp___0 ; [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); [L880] tmp = getWaterLevel() [L882] COND TRUE tmp == 0 [L801] int retValue_acc ; [L804] retValue_acc = pumpRunning [L805] return (retValue_acc); [L884] tmp___0 = isPumpRunning() [L886] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L869] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 3 error locations. Result: UNSAFE, OverallTime: 26.7s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 54 SDtfs, 66 SDslu, 227 SDs, 0 SdLazy, 150 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 10.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=2, 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, 2 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 3537 SizeOfPredicates, 26 NumberOfNonLiveVariables, 337 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/9 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...