./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product43.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_8e58dd44-84db-43d3-82a6-acdf1833a43e/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8e58dd44-84db-43d3-82a6-acdf1833a43e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8e58dd44-84db-43d3-82a6-acdf1833a43e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8e58dd44-84db-43d3-82a6-acdf1833a43e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8e58dd44-84db-43d3-82a6-acdf1833a43e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8e58dd44-84db-43d3-82a6-acdf1833a43e/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 d3ef47dc64404f2fae365adb4fa9379fd10f9c50 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:12:25,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:12:25,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:12:25,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:12:25,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:12:25,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:12:25,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:12:25,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:12:25,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:12:25,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:12:25,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:12:25,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:12:25,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:12:25,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:12:25,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:12:25,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:12:25,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:12:25,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:12:25,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:12:25,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:12:25,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:12:25,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:12:25,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:12:25,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:12:25,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:12:25,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:12:25,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:12:25,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:12:25,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:12:25,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:12:25,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:12:25,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:12:25,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:12:25,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:12:25,467 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:12:25,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:12:25,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:12:25,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:12:25,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:12:25,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:12:25,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:12:25,473 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8e58dd44-84db-43d3-82a6-acdf1833a43e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:12:25,499 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:12:25,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:12:25,500 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:12:25,500 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:12:25,500 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:12:25,501 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:12:25,501 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:12:25,501 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:12:25,501 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:12:25,501 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:12:25,502 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:12:25,502 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:12:25,502 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:12:25,502 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:12:25,503 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:12:25,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:12:25,503 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:12:25,504 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:12:25,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:12:25,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:12:25,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:12:25,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:12:25,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:12:25,505 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:12:25,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:12:25,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:12:25,506 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:12:25,506 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:12:25,506 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:12:25,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:12:25,507 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:12:25,507 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:12:25,507 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:12:25,507 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:12:25,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:12:25,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:12:25,508 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:12:25,508 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_8e58dd44-84db-43d3-82a6-acdf1833a43e/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 -> d3ef47dc64404f2fae365adb4fa9379fd10f9c50 [2019-11-26 02:12:25,655 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:12:25,667 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:12:25,670 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:12:25,672 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:12:25,672 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:12:25,673 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8e58dd44-84db-43d3-82a6-acdf1833a43e/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2019-11-26 02:12:25,735 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8e58dd44-84db-43d3-82a6-acdf1833a43e/bin/utaipan/data/5642226c5/4b1d3330cd3948a29c93272c0e45114c/FLAG335af1a12 [2019-11-26 02:12:26,160 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:12:26,161 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8e58dd44-84db-43d3-82a6-acdf1833a43e/sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2019-11-26 02:12:26,171 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8e58dd44-84db-43d3-82a6-acdf1833a43e/bin/utaipan/data/5642226c5/4b1d3330cd3948a29c93272c0e45114c/FLAG335af1a12 [2019-11-26 02:12:26,180 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8e58dd44-84db-43d3-82a6-acdf1833a43e/bin/utaipan/data/5642226c5/4b1d3330cd3948a29c93272c0e45114c [2019-11-26 02:12:26,182 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:12:26,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:12:26,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:12:26,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:12:26,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:12:26,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:12:26" (1/1) ... [2019-11-26 02:12:26,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7821c4f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:26, skipping insertion in model container [2019-11-26 02:12:26,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:12:26" (1/1) ... [2019-11-26 02:12:26,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:12:26,268 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:12:26,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:12:26,746 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:12:26,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:12:26,890 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:12:26,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:26 WrapperNode [2019-11-26 02:12:26,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:12:26,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:12:26,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:12:26,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:12:26,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:26" (1/1) ... [2019-11-26 02:12:26,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:26" (1/1) ... [2019-11-26 02:12:26,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:12:26,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:12:26,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:12:26,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:12:26,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:26" (1/1) ... [2019-11-26 02:12:26,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:26" (1/1) ... [2019-11-26 02:12:27,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:26" (1/1) ... [2019-11-26 02:12:27,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:26" (1/1) ... [2019-11-26 02:12:27,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:26" (1/1) ... [2019-11-26 02:12:27,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:26" (1/1) ... [2019-11-26 02:12:27,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:26" (1/1) ... [2019-11-26 02:12:27,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:12:27,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:12:27,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:12:27,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:12:27,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e58dd44-84db-43d3-82a6-acdf1833a43e/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 02:12:27,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:12:27,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:12:27,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:12:27,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:12:28,696 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:12:28,696 INFO L284 CfgBuilder]: Removed 120 assume(true) statements. [2019-11-26 02:12:28,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:12:28 BoogieIcfgContainer [2019-11-26 02:12:28,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:12:28,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:12:28,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:12:28,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:12:28,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:12:26" (1/3) ... [2019-11-26 02:12:28,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b0f241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:12:28, skipping insertion in model container [2019-11-26 02:12:28,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:26" (2/3) ... [2019-11-26 02:12:28,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b0f241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:12:28, skipping insertion in model container [2019-11-26 02:12:28,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:12:28" (3/3) ... [2019-11-26 02:12:28,708 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product43.cil.c [2019-11-26 02:12:28,717 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:12:28,723 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-26 02:12:28,733 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-26 02:12:28,757 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:12:28,757 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:12:28,758 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:12:28,758 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:12:28,758 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:12:28,758 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:12:28,758 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:12:28,758 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:12:28,775 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-26 02:12:28,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:12:28,781 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:12:28,781 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:12:28,782 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:12:28,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:12:28,787 INFO L82 PathProgramCache]: Analyzing trace with hash -803712692, now seen corresponding path program 1 times [2019-11-26 02:12:28,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:12:28,794 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624475466] [2019-11-26 02:12:28,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:12:28,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:12:29,060 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 02:12:29,060 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624475466] [2019-11-26 02:12:29,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:12:29,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:12:29,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502304030] [2019-11-26 02:12:29,067 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:12:29,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:12:29,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:12:29,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:12:29,079 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-11-26 02:12:29,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:12:29,097 INFO L93 Difference]: Finished difference Result 50 states and 75 transitions. [2019-11-26 02:12:29,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:12:29,098 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-26 02:12:29,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:12:29,111 INFO L225 Difference]: With dead ends: 50 [2019-11-26 02:12:29,111 INFO L226 Difference]: Without dead ends: 24 [2019-11-26 02:12:29,113 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 02:12:29,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-26 02:12:29,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-26 02:12:29,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-26 02:12:29,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2019-11-26 02:12:29,150 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 8 [2019-11-26 02:12:29,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:12:29,151 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2019-11-26 02:12:29,151 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:12:29,151 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2019-11-26 02:12:29,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:12:29,152 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:12:29,152 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:12:29,153 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:12:29,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:12:29,153 INFO L82 PathProgramCache]: Analyzing trace with hash 760455279, now seen corresponding path program 1 times [2019-11-26 02:12:29,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:12:29,154 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805647341] [2019-11-26 02:12:29,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:12:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:12:29,293 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 02:12:29,293 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805647341] [2019-11-26 02:12:29,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:12:29,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:12:29,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706331377] [2019-11-26 02:12:29,295 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:12:29,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:12:29,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:12:29,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:12:29,296 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand 3 states. [2019-11-26 02:12:29,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:12:29,369 INFO L93 Difference]: Finished difference Result 46 states and 60 transitions. [2019-11-26 02:12:29,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:12:29,370 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-26 02:12:29,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:12:29,371 INFO L225 Difference]: With dead ends: 46 [2019-11-26 02:12:29,371 INFO L226 Difference]: Without dead ends: 40 [2019-11-26 02:12:29,372 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:12:29,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-26 02:12:29,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-11-26 02:12:29,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-26 02:12:29,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2019-11-26 02:12:29,379 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 8 [2019-11-26 02:12:29,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:12:29,379 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2019-11-26 02:12:29,381 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:12:29,381 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2019-11-26 02:12:29,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-26 02:12:29,382 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:12:29,382 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-11-26 02:12:29,383 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:12:29,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:12:29,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1727091144, now seen corresponding path program 1 times [2019-11-26 02:12:29,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:12:29,384 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635685162] [2019-11-26 02:12:29,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:12:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:12:29,660 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:12:29,660 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635685162] [2019-11-26 02:12:29,660 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654899794] [2019-11-26 02:12:29,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e58dd44-84db-43d3-82a6-acdf1833a43e/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 02:12:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:12:29,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 21 conjunts are in the unsatisfiable core [2019-11-26 02:12:29,872 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:12:29,912 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:29,914 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:29,924 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:29,930 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:29,939 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:29,940 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:29,990 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:29,993 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-26 02:12:29,993 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:12:30,023 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:30,025 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:30,026 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:30,027 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:30,029 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:30,030 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:30,033 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:30,038 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:30,043 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:30,045 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:30,046 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:30,048 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:30,049 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:30,051 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:30,053 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:30,057 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:30,059 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:12:30,085 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-26 02:12:30,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-26 02:12:30,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [5] total 9 [2019-11-26 02:12:30,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335687279] [2019-11-26 02:12:30,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:12:30,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:12:30,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:12:30,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-11-26 02:12:30,087 INFO L87 Difference]: Start difference. First operand 40 states and 54 transitions. Second operand 7 states. [2019-11-26 02:12:30,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:12:30,406 INFO L93 Difference]: Finished difference Result 117 states and 160 transitions. [2019-11-26 02:12:30,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 02:12:30,409 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-26 02:12:30,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:12:30,410 INFO L225 Difference]: With dead ends: 117 [2019-11-26 02:12:30,411 INFO L226 Difference]: Without dead ends: 79 [2019-11-26 02:12:30,412 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-11-26 02:12:30,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-11-26 02:12:30,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 53. [2019-11-26 02:12:30,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-11-26 02:12:30,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 71 transitions. [2019-11-26 02:12:30,434 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 71 transitions. Word has length 13 [2019-11-26 02:12:30,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:12:30,434 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 71 transitions. [2019-11-26 02:12:30,435 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:12:30,435 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 71 transitions. [2019-11-26 02:12:30,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-26 02:12:30,437 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:12:30,437 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2019-11-26 02:12:30,640 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:12:30,641 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:12:30,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:12:30,641 INFO L82 PathProgramCache]: Analyzing trace with hash 861706427, now seen corresponding path program 1 times [2019-11-26 02:12:30,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:12:30,642 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488897384] [2019-11-26 02:12:30,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:12:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:12:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:12:31,080 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:12:31,081 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:12:31,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:12:31 BoogieIcfgContainer [2019-11-26 02:12:31,191 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:12:31,192 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:12:31,192 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:12:31,192 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:12:31,193 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:12:28" (3/4) ... [2019-11-26 02:12:31,194 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:12:31,289 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8e58dd44-84db-43d3-82a6-acdf1833a43e/bin/utaipan/witness.graphml [2019-11-26 02:12:31,289 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:12:31,291 INFO L168 Benchmark]: Toolchain (without parser) took 5107.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 946.1 MB in the beginning and 981.1 MB in the end (delta: -35.0 MB). Peak memory consumption was 124.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:12:31,291 INFO L168 Benchmark]: CDTParser took 0.26 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 02:12:31,292 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -196.6 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:12:31,292 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.07 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 02:12:31,293 INFO L168 Benchmark]: Boogie Preprocessor took 70.27 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 02:12:31,293 INFO L168 Benchmark]: RCFGBuilder took 1643.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.8 MB in the end (delta: 163.1 MB). Peak memory consumption was 163.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:12:31,293 INFO L168 Benchmark]: TraceAbstraction took 2492.38 ms. Allocated memory is still 1.2 GB. Free memory was 968.8 MB in the beginning and 993.1 MB in the end (delta: -24.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:12:31,294 INFO L168 Benchmark]: Witness Printer took 97.88 ms. Allocated memory is still 1.2 GB. Free memory was 993.1 MB in the beginning and 981.1 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:12:31,296 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 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 706.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -196.6 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 92.07 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 70.27 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 1643.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.8 MB in the end (delta: 163.1 MB). Peak memory consumption was 163.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2492.38 ms. Allocated memory is still 1.2 GB. Free memory was 968.8 MB in the beginning and 993.1 MB in the end (delta: -24.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 97.88 ms. Allocated memory is still 1.2 GB. Free memory was 993.1 MB in the beginning and 981.1 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 946]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L507] int cleanupTimeShifts = 4; [L648] int methAndRunningLastTime ; [L757] int pumpRunning = 0; [L758] int systemActive = 1; [L310] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L588] int retValue_acc ; [L589] int tmp ; [L637] int retValue_acc ; [L640] retValue_acc = 1 [L641] return (retValue_acc); [L595] tmp = valid_product() [L597] COND TRUE \read(tmp) [L653] methAndRunningLastTime = 0 [L689] int splverifierCounter ; [L690] int tmp ; [L691] int tmp___0 ; [L692] int tmp___1 ; [L693] int tmp___2 ; [L696] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L698] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L700] COND TRUE splverifierCounter < 4 [L706] tmp = __VERIFIER_nondet_int() [L708] COND TRUE \read(tmp) [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L716] tmp___0 = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp___0)) [L726] tmp___2 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___2) [L764] COND FALSE !(\read(pumpRunning)) [L771] COND TRUE \read(systemActive) [L793] int tmp ; [L796] COND TRUE ! pumpRunning [L908] int retValue_acc ; [L909] int tmp ; [L910] int tmp___0 ; [L127] int retValue_acc ; [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); [L914] tmp = isHighWaterSensorDry() [L916] COND FALSE !(\read(tmp)) [L919] tmp___0 = 1 [L921] retValue_acc = tmp___0 [L922] return (retValue_acc); [L798] tmp = isHighWaterLevel() [L800] COND TRUE \read(tmp) [L827] int tmp ; [L852] int retValue_acc ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L856] retValue_acc = isMethaneLevelCritical() [L858] return (retValue_acc); [L831] tmp = isMethaneAlarm() [L833] COND FALSE !(\read(tmp)) [L821] pumpRunning = 1 [L658] int tmp ; [L659] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L663] tmp = isMethaneLevelCritical() [L665] COND FALSE !(\read(tmp)) [L681] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L698] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L700] COND TRUE splverifierCounter < 4 [L706] tmp = __VERIFIER_nondet_int() [L708] COND FALSE !(\read(tmp)) [L716] tmp___0 = __VERIFIER_nondet_int() [L718] COND TRUE \read(tmp___0) [L77] COND FALSE !(\read(methaneLevelCritical)) [L80] methaneLevelCritical = 1 [L726] tmp___2 = __VERIFIER_nondet_int() [L728] COND FALSE !(\read(tmp___2)) [L732] tmp___1 = __VERIFIER_nondet_int() [L734] COND FALSE !(\read(tmp___1)) [L764] COND TRUE \read(pumpRunning) [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 [L771] COND TRUE \read(systemActive) [L793] int tmp ; [L796] COND FALSE !(! pumpRunning) [L658] int tmp ; [L659] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L663] tmp = isMethaneLevelCritical() [L665] COND TRUE \read(tmp) [L863] int retValue_acc ; [L866] retValue_acc = pumpRunning [L867] return (retValue_acc); [L667] tmp___0 = isPumpRunning() [L669] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L670] COND FALSE !(\read(methAndRunningLastTime)) [L675] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L698] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L700] COND TRUE splverifierCounter < 4 [L706] tmp = __VERIFIER_nondet_int() [L708] COND TRUE \read(tmp) [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L716] tmp___0 = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp___0)) [L726] tmp___2 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___2) [L764] COND TRUE \read(pumpRunning) [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 [L771] COND TRUE \read(systemActive) [L793] int tmp ; [L796] COND FALSE !(! pumpRunning) [L658] int tmp ; [L659] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L663] tmp = isMethaneLevelCritical() [L665] COND TRUE \read(tmp) [L863] int retValue_acc ; [L866] retValue_acc = pumpRunning [L867] return (retValue_acc); [L667] tmp___0 = isPumpRunning() [L669] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L670] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L946] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 3 error locations. Result: UNSAFE, OverallTime: 2.4s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 92 SDtfs, 58 SDslu, 104 SDs, 0 SdLazy, 96 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=3, 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, 3 MinimizatonAttempts, 26 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 1836 SizeOfPredicates, 46 NumberOfNonLiveVariables, 354 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 10/15 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...