./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product37.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_8f3bb6dd-a1bd-4d40-b9b7-07acdff7dd2d/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8f3bb6dd-a1bd-4d40-b9b7-07acdff7dd2d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8f3bb6dd-a1bd-4d40-b9b7-07acdff7dd2d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8f3bb6dd-a1bd-4d40-b9b7-07acdff7dd2d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8f3bb6dd-a1bd-4d40-b9b7-07acdff7dd2d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8f3bb6dd-a1bd-4d40-b9b7-07acdff7dd2d/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 903a1f53bc072e1ab483040d7a35aae5e2bdf412 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:46:28,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:46:28,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:46:28,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:46:28,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:46:28,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:46:28,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:46:28,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:46:28,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:46:28,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:46:28,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:46:28,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:46:28,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:46:28,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:46:28,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:46:28,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:46:28,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:46:28,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:46:28,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:46:28,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:46:28,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:46:28,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:46:28,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:46:28,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:46:28,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:46:28,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:46:28,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:46:28,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:46:28,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:46:28,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:46:28,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:46:28,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:46:28,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:46:28,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:46:28,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:46:28,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:46:28,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:46:28,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:46:28,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:46:28,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:46:28,971 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:46:28,972 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8f3bb6dd-a1bd-4d40-b9b7-07acdff7dd2d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:46:28,985 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:46:28,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:46:28,986 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:46:28,986 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:46:28,986 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:46:28,986 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:46:28,986 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:46:28,987 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:46:28,987 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:46:28,987 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:46:28,987 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:46:28,988 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:46:28,988 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:46:28,988 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:46:28,988 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:46:28,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:46:28,989 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:46:28,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:46:28,990 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:46:28,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:46:28,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:46:28,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:46:28,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:46:28,991 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:46:28,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:46:28,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:46:28,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:46:28,991 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:46:28,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:46:28,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:46:28,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:46:28,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:46:28,992 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:46:28,993 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:46:28,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:46:28,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:46:28,993 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:46:28,993 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_8f3bb6dd-a1bd-4d40-b9b7-07acdff7dd2d/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 -> 903a1f53bc072e1ab483040d7a35aae5e2bdf412 [2019-11-26 02:46:29,189 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:46:29,199 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:46:29,202 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:46:29,203 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:46:29,204 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:46:29,204 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8f3bb6dd-a1bd-4d40-b9b7-07acdff7dd2d/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c [2019-11-26 02:46:29,266 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8f3bb6dd-a1bd-4d40-b9b7-07acdff7dd2d/bin/utaipan/data/66a524b4e/a667d472b32c45b999d05df142de5567/FLAG0d1740fca [2019-11-26 02:46:29,732 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:46:29,733 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8f3bb6dd-a1bd-4d40-b9b7-07acdff7dd2d/sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c [2019-11-26 02:46:29,750 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8f3bb6dd-a1bd-4d40-b9b7-07acdff7dd2d/bin/utaipan/data/66a524b4e/a667d472b32c45b999d05df142de5567/FLAG0d1740fca [2019-11-26 02:46:30,096 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8f3bb6dd-a1bd-4d40-b9b7-07acdff7dd2d/bin/utaipan/data/66a524b4e/a667d472b32c45b999d05df142de5567 [2019-11-26 02:46:30,099 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:46:30,100 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:46:30,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:46:30,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:46:30,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:46:30,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:46:30" (1/1) ... [2019-11-26 02:46:30,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a6afe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:30, skipping insertion in model container [2019-11-26 02:46:30,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:46:30" (1/1) ... [2019-11-26 02:46:30,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:46:30,178 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:46:30,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:46:30,517 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:46:30,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:46:30,688 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:46:30,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:30 WrapperNode [2019-11-26 02:46:30,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:46:30,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:46:30,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:46:30,690 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:46:30,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:30" (1/1) ... [2019-11-26 02:46:30,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:30" (1/1) ... [2019-11-26 02:46:30,776 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:46:30,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:46:30,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:46:30,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:46:30,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:30" (1/1) ... [2019-11-26 02:46:30,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:30" (1/1) ... [2019-11-26 02:46:30,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:30" (1/1) ... [2019-11-26 02:46:30,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:30" (1/1) ... [2019-11-26 02:46:30,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:30" (1/1) ... [2019-11-26 02:46:30,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:30" (1/1) ... [2019-11-26 02:46:30,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:30" (1/1) ... [2019-11-26 02:46:30,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:46:30,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:46:30,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:46:30,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:46:30,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f3bb6dd-a1bd-4d40-b9b7-07acdff7dd2d/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:46:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:46:30,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:46:30,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:46:30,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:46:33,105 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:46:33,106 INFO L284 CfgBuilder]: Removed 156 assume(true) statements. [2019-11-26 02:46:33,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:46:33 BoogieIcfgContainer [2019-11-26 02:46:33,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:46:33,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:46:33,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:46:33,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:46:33,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:46:30" (1/3) ... [2019-11-26 02:46:33,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48536812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:46:33, skipping insertion in model container [2019-11-26 02:46:33,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:30" (2/3) ... [2019-11-26 02:46:33,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48536812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:46:33, skipping insertion in model container [2019-11-26 02:46:33,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:46:33" (3/3) ... [2019-11-26 02:46:33,121 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product37.cil.c [2019-11-26 02:46:33,132 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:46:33,140 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-26 02:46:33,151 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-26 02:46:33,177 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:46:33,177 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:46:33,177 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:46:33,177 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:46:33,177 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:46:33,178 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:46:33,178 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:46:33,178 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:46:33,194 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-26 02:46:33,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:46:33,201 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:46:33,202 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:46:33,203 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:46:33,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:46:33,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1916996900, now seen corresponding path program 1 times [2019-11-26 02:46:33,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:46:33,219 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125773577] [2019-11-26 02:46:33,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:46:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:46:33,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:46:33,505 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125773577] [2019-11-26 02:46:33,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:46:33,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:46:33,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679747447] [2019-11-26 02:46:33,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:46:33,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:46:33,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:46:33,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:46:33,525 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2019-11-26 02:46:33,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:46:33,541 INFO L93 Difference]: Finished difference Result 44 states and 63 transitions. [2019-11-26 02:46:33,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:46:33,542 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-26 02:46:33,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:46:33,551 INFO L225 Difference]: With dead ends: 44 [2019-11-26 02:46:33,551 INFO L226 Difference]: Without dead ends: 21 [2019-11-26 02:46:33,554 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:46:33,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-26 02:46:33,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-26 02:46:33,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-26 02:46:33,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2019-11-26 02:46:33,587 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 7 [2019-11-26 02:46:33,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:46:33,588 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-11-26 02:46:33,588 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:46:33,588 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-11-26 02:46:33,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:46:33,588 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:46:33,589 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:46:33,589 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:46:33,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:46:33,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1460478403, now seen corresponding path program 1 times [2019-11-26 02:46:33,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:46:33,590 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595310265] [2019-11-26 02:46:33,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:46:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:46:33,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:46:33,775 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595310265] [2019-11-26 02:46:33,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:46:33,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:46:33,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958833470] [2019-11-26 02:46:33,777 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:46:33,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:46:33,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:46:33,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:46:33,778 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 5 states. [2019-11-26 02:46:33,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:46:33,955 INFO L93 Difference]: Finished difference Result 57 states and 68 transitions. [2019-11-26 02:46:33,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:46:33,957 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-11-26 02:46:33,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:46:33,958 INFO L225 Difference]: With dead ends: 57 [2019-11-26 02:46:33,958 INFO L226 Difference]: Without dead ends: 51 [2019-11-26 02:46:33,959 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:46:33,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-11-26 02:46:33,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 34. [2019-11-26 02:46:33,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-26 02:46:33,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2019-11-26 02:46:33,974 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 7 [2019-11-26 02:46:33,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:46:33,974 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2019-11-26 02:46:33,974 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:46:33,974 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2019-11-26 02:46:33,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:46:33,975 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:46:33,975 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-11-26 02:46:33,976 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:46:33,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:46:33,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1132472006, now seen corresponding path program 1 times [2019-11-26 02:46:33,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:46:33,977 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053263773] [2019-11-26 02:46:33,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:46:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:46:34,293 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 02:46:34,293 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053263773] [2019-11-26 02:46:34,294 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286289405] [2019-11-26 02:46:34,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f3bb6dd-a1bd-4d40-b9b7-07acdff7dd2d/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 02:46:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:46:34,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 25 conjunts are in the unsatisfiable core [2019-11-26 02:46:34,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:46:34,616 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:34,629 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:34,632 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:34,636 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:34,739 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:34,741 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:34,759 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 02:46:34,759 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:46:34,777 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:34,777 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:34,904 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:34,912 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:34,916 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:46:34,924 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:34,927 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:34,929 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:34,939 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:34,944 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:34,946 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:34,960 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:34,971 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:34,976 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:46:34,977 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:34,978 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:34,979 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:34,986 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:34,988 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:46:35,005 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:35,012 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:35,015 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:35,016 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:35,019 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:35,025 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:46:35,189 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 20 [2019-11-26 02:46:35,191 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 02:46:35,192 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [810848463] [2019-11-26 02:46:35,226 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2019-11-26 02:46:35,237 INFO L166 IcfgInterpreter]: Building call graph [2019-11-26 02:46:35,242 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-26 02:46:35,250 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-26 02:46:35,251 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-26 02:46:43,320 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 476 [2019-11-26 02:46:45,122 WARN L192 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-26 02:46:45,319 WARN L192 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 484 [2019-11-26 02:46:45,832 WARN L192 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 577 [2019-11-26 02:46:46,557 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-26 02:46:48,020 WARN L192 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 347 DAG size of output: 195 [2019-11-26 02:46:51,966 WARN L192 SmtUtils]: Spent 3.76 s on a formula simplification. DAG size of input: 484 DAG size of output: 429 [2019-11-26 02:46:52,885 WARN L192 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 147 [2019-11-26 02:46:54,364 WARN L192 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 335 DAG size of output: 245 [2019-11-26 02:46:55,744 WARN L192 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 345 DAG size of output: 206 [2019-11-26 02:46:55,747 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-26 02:46:55,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-11-26 02:46:55,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2019-11-26 02:46:55,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858432075] [2019-11-26 02:46:55,748 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-26 02:46:55,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:46:55,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-26 02:46:55,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2019-11-26 02:46:55,749 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 15 states. [2019-11-26 02:46:56,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:46:56,069 INFO L93 Difference]: Finished difference Result 81 states and 102 transitions. [2019-11-26 02:46:56,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-26 02:46:56,069 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 10 [2019-11-26 02:46:56,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:46:56,070 INFO L225 Difference]: With dead ends: 81 [2019-11-26 02:46:56,070 INFO L226 Difference]: Without dead ends: 42 [2019-11-26 02:46:56,071 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2019-11-26 02:46:56,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-26 02:46:56,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 29. [2019-11-26 02:46:56,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-26 02:46:56,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-11-26 02:46:56,077 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 10 [2019-11-26 02:46:56,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:46:56,078 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2019-11-26 02:46:56,078 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-26 02:46:56,078 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2019-11-26 02:46:56,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-26 02:46:56,079 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:46:56,079 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1] [2019-11-26 02:46:56,282 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:46:56,283 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:46:56,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:46:56,283 INFO L82 PathProgramCache]: Analyzing trace with hash 544497379, now seen corresponding path program 2 times [2019-11-26 02:46:56,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:46:56,284 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932723737] [2019-11-26 02:46:56,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:46:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:46:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:46:56,796 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:46:56,796 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:46:56,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:46:56 BoogieIcfgContainer [2019-11-26 02:46:56,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:46:56,899 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:46:56,899 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:46:56,899 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:46:56,900 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:46:33" (3/4) ... [2019-11-26 02:46:56,903 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:46:57,006 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8f3bb6dd-a1bd-4d40-b9b7-07acdff7dd2d/bin/utaipan/witness.graphml [2019-11-26 02:46:57,006 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:46:57,007 INFO L168 Benchmark]: Toolchain (without parser) took 26907.38 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 550.5 MB). Free memory was 951.5 MB in the beginning and 779.7 MB in the end (delta: 171.8 MB). Peak memory consumption was 722.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:46:57,008 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:46:57,008 INFO L168 Benchmark]: CACSL2BoogieTranslator took 587.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -154.2 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:46:57,008 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:46:57,009 INFO L168 Benchmark]: Boogie Preprocessor took 86.06 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:46:57,009 INFO L168 Benchmark]: RCFGBuilder took 2244.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 870.5 MB in the end (delta: 222.9 MB). Peak memory consumption was 222.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:46:57,009 INFO L168 Benchmark]: TraceAbstraction took 23790.46 ms. Allocated memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: 432.5 MB). Free memory was 870.5 MB in the beginning and 798.1 MB in the end (delta: 72.5 MB). Peak memory consumption was 505.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:46:57,010 INFO L168 Benchmark]: Witness Printer took 107.46 ms. Allocated memory is still 1.6 GB. Free memory was 798.1 MB in the beginning and 779.7 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:46:57,013 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 587.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -154.2 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 86.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 86.06 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 2244.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 870.5 MB in the end (delta: 222.9 MB). Peak memory consumption was 222.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 23790.46 ms. Allocated memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: 432.5 MB). Free memory was 870.5 MB in the beginning and 798.1 MB in the end (delta: 72.5 MB). Peak memory consumption was 505.0 MB. Max. memory is 11.5 GB. * Witness Printer took 107.46 ms. Allocated memory is still 1.6 GB. Free memory was 798.1 MB in the beginning and 779.7 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 434]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L155] int pumpRunning = 0; [L156] int systemActive = 1; [L334] int cleanupTimeShifts = 4; [L440] int waterLevel = 1; [L441] int methaneLevelCritical = 0; [L703] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L407] int retValue_acc ; [L408] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L414] tmp = valid_product() [L416] COND TRUE \read(tmp) [L83] int splverifierCounter ; [L84] int tmp ; [L85] int tmp___0 ; [L86] int tmp___1 ; [L87] int tmp___2 ; [L90] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L92] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L94] COND TRUE splverifierCounter < 4 [L100] tmp = __VERIFIER_nondet_int() [L102] COND TRUE \read(tmp) [L458] COND TRUE waterLevel < 2 [L459] waterLevel = waterLevel + 1 [L110] tmp___0 = __VERIFIER_nondet_int() [L112] COND FALSE !(\read(tmp___0)) [L120] tmp___2 = __VERIFIER_nondet_int() [L122] COND TRUE \read(tmp___2) [L163] COND FALSE !(\read(pumpRunning)) [L170] COND TRUE \read(systemActive) [L218] int tmp ; [L221] COND FALSE !(\read(pumpRunning)) [L192] int tmp ; [L195] COND TRUE ! pumpRunning [L315] int retValue_acc ; [L316] int tmp ; [L317] int tmp___0 ; [L520] int retValue_acc ; [L523] COND FALSE !(waterLevel < 2) [L527] retValue_acc = 0 [L528] return (retValue_acc); [L321] tmp = isHighWaterSensorDry() [L323] COND FALSE !(\read(tmp)) [L326] tmp___0 = 1 [L328] retValue_acc = tmp___0 [L329] return (retValue_acc); [L197] tmp = isHighWaterLevel() [L199] COND TRUE \read(tmp) [L246] pumpRunning = 1 [L901] int tmp ; [L902] int tmp___0 ; [L511] int retValue_acc ; [L514] retValue_acc = waterLevel [L515] return (retValue_acc); [L906] tmp = getWaterLevel() [L908] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L92] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L94] COND TRUE splverifierCounter < 4 [L100] tmp = __VERIFIER_nondet_int() [L102] COND TRUE \read(tmp) [L458] COND FALSE !(waterLevel < 2) [L110] tmp___0 = __VERIFIER_nondet_int() [L112] COND FALSE !(\read(tmp___0)) [L120] tmp___2 = __VERIFIER_nondet_int() [L122] COND TRUE \read(tmp___2) [L163] COND TRUE \read(pumpRunning) [L446] COND TRUE waterLevel > 0 [L447] waterLevel = waterLevel - 1 [L170] COND TRUE \read(systemActive) [L218] int tmp ; [L221] COND TRUE \read(pumpRunning) [L259] int retValue_acc ; [L479] int retValue_acc ; [L482] retValue_acc = methaneLevelCritical [L483] return (retValue_acc); [L263] retValue_acc = isMethaneLevelCritical() [L265] return (retValue_acc); [L223] tmp = isMethaneAlarm() [L225] COND FALSE !(\read(tmp)) [L192] int tmp ; [L195] COND FALSE !(! pumpRunning) [L901] int tmp ; [L902] int tmp___0 ; [L511] int retValue_acc ; [L514] retValue_acc = waterLevel [L515] return (retValue_acc); [L906] tmp = getWaterLevel() [L908] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L92] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L94] COND TRUE splverifierCounter < 4 [L100] tmp = __VERIFIER_nondet_int() [L102] COND FALSE !(\read(tmp)) [L110] tmp___0 = __VERIFIER_nondet_int() [L112] COND FALSE !(\read(tmp___0)) [L120] tmp___2 = __VERIFIER_nondet_int() [L122] COND TRUE \read(tmp___2) [L163] COND TRUE \read(pumpRunning) [L446] COND TRUE waterLevel > 0 [L447] waterLevel = waterLevel - 1 [L170] COND TRUE \read(systemActive) [L218] int tmp ; [L221] COND TRUE \read(pumpRunning) [L259] int retValue_acc ; [L479] int retValue_acc ; [L482] retValue_acc = methaneLevelCritical [L483] return (retValue_acc); [L263] retValue_acc = isMethaneLevelCritical() [L265] return (retValue_acc); [L223] tmp = isMethaneAlarm() [L225] COND FALSE !(\read(tmp)) [L192] int tmp ; [L195] COND FALSE !(! pumpRunning) [L901] int tmp ; [L902] int tmp___0 ; [L511] int retValue_acc ; [L514] retValue_acc = waterLevel [L515] return (retValue_acc); [L906] tmp = getWaterLevel() [L908] COND TRUE tmp == 0 [L270] int retValue_acc ; [L273] retValue_acc = pumpRunning [L274] return (retValue_acc); [L910] tmp___0 = isPumpRunning() [L912] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L434] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 3 error locations. Result: UNSAFE, OverallTime: 23.7s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 113 SDslu, 210 SDs, 0 SdLazy, 173 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 3 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 3234 SizeOfPredicates, 33 NumberOfNonLiveVariables, 337 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 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...