./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_787b50fd-cb19-4979-87cf-f05a6db9e561/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_787b50fd-cb19-4979-87cf-f05a6db9e561/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_787b50fd-cb19-4979-87cf-f05a6db9e561/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_787b50fd-cb19-4979-87cf-f05a6db9e561/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_787b50fd-cb19-4979-87cf-f05a6db9e561/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_787b50fd-cb19-4979-87cf-f05a6db9e561/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 351e1061dd8393b15ba9fc7223df15ae9d3170ab ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-cad4683 [2019-10-22 11:23:02,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:23:02,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:23:02,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:23:02,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:23:02,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:23:02,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:23:02,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:23:02,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:23:02,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:23:02,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:23:02,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:23:02,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:23:02,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:23:02,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:23:02,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:23:02,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:23:02,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:23:02,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:23:02,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:23:02,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:23:02,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:23:02,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:23:02,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:23:02,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:23:02,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:23:02,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:23:02,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:23:02,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:23:02,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:23:02,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:23:02,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:23:02,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:23:02,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:23:02,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:23:02,996 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:23:02,997 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:23:02,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:23:02,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:23:02,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:23:02,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:23:02,999 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_787b50fd-cb19-4979-87cf-f05a6db9e561/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:23:03,019 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:23:03,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:23:03,020 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:23:03,020 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:23:03,020 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:23:03,020 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:23:03,020 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:23:03,021 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:23:03,021 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:23:03,021 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:23:03,021 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:23:03,021 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:23:03,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:23:03,025 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:23:03,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:23:03,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:23:03,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:23:03,026 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:23:03,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:23:03,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:23:03,026 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:23:03,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:23:03,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:23:03,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:23:03,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:23:03,027 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:23:03,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:23:03,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:03,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:23:03,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:23:03,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:23:03,028 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:23:03,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:23:03,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:23:03,029 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:23:03,029 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/working_dir_787b50fd-cb19-4979-87cf-f05a6db9e561/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 -> 351e1061dd8393b15ba9fc7223df15ae9d3170ab [2019-10-22 11:23:03,063 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:23:03,072 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:23:03,075 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:23:03,076 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:23:03,076 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:23:03,077 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_787b50fd-cb19-4979-87cf-f05a6db9e561/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2019-10-22 11:23:03,118 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_787b50fd-cb19-4979-87cf-f05a6db9e561/bin/utaipan/data/7c9bf72ef/33354f7cc05a47048d39f7aea2cd0c66/FLAG51d524af4 [2019-10-22 11:23:03,565 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:23:03,568 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_787b50fd-cb19-4979-87cf-f05a6db9e561/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2019-10-22 11:23:03,577 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_787b50fd-cb19-4979-87cf-f05a6db9e561/bin/utaipan/data/7c9bf72ef/33354f7cc05a47048d39f7aea2cd0c66/FLAG51d524af4 [2019-10-22 11:23:03,921 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_787b50fd-cb19-4979-87cf-f05a6db9e561/bin/utaipan/data/7c9bf72ef/33354f7cc05a47048d39f7aea2cd0c66 [2019-10-22 11:23:03,923 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:23:03,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:23:03,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:03,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:23:03,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:23:03,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:03" (1/1) ... [2019-10-22 11:23:03,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3df6e0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:03, skipping insertion in model container [2019-10-22 11:23:03,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:03" (1/1) ... [2019-10-22 11:23:03,938 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:23:03,981 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:23:04,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:04,351 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:23:04,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:04,467 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:23:04,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:04 WrapperNode [2019-10-22 11:23:04,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:04,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:04,469 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:23:04,469 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:23:04,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:04" (1/1) ... [2019-10-22 11:23:04,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:04" (1/1) ... [2019-10-22 11:23:04,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:04,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:23:04,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:23:04,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:23:04,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:04" (1/1) ... [2019-10-22 11:23:04,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:04" (1/1) ... [2019-10-22 11:23:04,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:04" (1/1) ... [2019-10-22 11:23:04,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:04" (1/1) ... [2019-10-22 11:23:04,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:04" (1/1) ... [2019-10-22 11:23:04,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:04" (1/1) ... [2019-10-22 11:23:04,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:04" (1/1) ... [2019-10-22 11:23:04,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:23:04,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:23:04,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:23:04,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:23:04,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_787b50fd-cb19-4979-87cf-f05a6db9e561/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 [2019-10-22 11:23:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:23:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:23:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:23:04,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:23:05,583 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:23:05,584 INFO L284 CfgBuilder]: Removed 360 assume(true) statements. [2019-10-22 11:23:05,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:05 BoogieIcfgContainer [2019-10-22 11:23:05,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:23:05,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:23:05,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:23:05,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:23:05,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:23:03" (1/3) ... [2019-10-22 11:23:05,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62ee49f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:05, skipping insertion in model container [2019-10-22 11:23:05,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:04" (2/3) ... [2019-10-22 11:23:05,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62ee49f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:05, skipping insertion in model container [2019-10-22 11:23:05,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:05" (3/3) ... [2019-10-22 11:23:05,592 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2019-10-22 11:23:05,600 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:23:05,607 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:23:05,617 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:23:05,637 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:23:05,637 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:23:05,637 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:23:05,637 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:23:05,637 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:23:05,637 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:23:05,637 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:23:05,638 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:23:05,654 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states. [2019-10-22 11:23:05,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 11:23:05,660 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:05,661 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:05,662 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:05,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:05,666 INFO L82 PathProgramCache]: Analyzing trace with hash 798211303, now seen corresponding path program 1 times [2019-10-22 11:23:05,671 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:05,672 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557514288] [2019-10-22 11:23:05,672 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:05,672 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:05,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:05,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:05,882 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557514288] [2019-10-22 11:23:05,882 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:05,883 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:23:05,883 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277405698] [2019-10-22 11:23:05,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:23:05,889 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:05,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:23:05,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:23:05,902 INFO L87 Difference]: Start difference. First operand 233 states. Second operand 2 states. [2019-10-22 11:23:05,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:05,944 INFO L93 Difference]: Finished difference Result 460 states and 689 transitions. [2019-10-22 11:23:05,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:23:05,945 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-22 11:23:05,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:05,958 INFO L225 Difference]: With dead ends: 460 [2019-10-22 11:23:05,958 INFO L226 Difference]: Without dead ends: 229 [2019-10-22 11:23:05,963 INFO L600 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 [2019-10-22 11:23:05,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2019-10-22 11:23:06,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2019-10-22 11:23:06,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2019-10-22 11:23:06,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 336 transitions. [2019-10-22 11:23:06,009 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 336 transitions. Word has length 18 [2019-10-22 11:23:06,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:06,009 INFO L462 AbstractCegarLoop]: Abstraction has 229 states and 336 transitions. [2019-10-22 11:23:06,009 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:23:06,010 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 336 transitions. [2019-10-22 11:23:06,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:23:06,010 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:06,011 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:06,011 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:06,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:06,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1952869156, now seen corresponding path program 1 times [2019-10-22 11:23:06,011 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:06,012 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821505764] [2019-10-22 11:23:06,012 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:06,012 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:06,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:06,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:06,123 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821505764] [2019-10-22 11:23:06,123 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:06,123 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:23:06,123 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074490802] [2019-10-22 11:23:06,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:06,124 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:06,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:06,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:06,125 INFO L87 Difference]: Start difference. First operand 229 states and 336 transitions. Second operand 3 states. [2019-10-22 11:23:06,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:06,143 INFO L93 Difference]: Finished difference Result 229 states and 336 transitions. [2019-10-22 11:23:06,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:06,144 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 11:23:06,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:06,145 INFO L225 Difference]: With dead ends: 229 [2019-10-22 11:23:06,145 INFO L226 Difference]: Without dead ends: 87 [2019-10-22 11:23:06,146 INFO L600 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 [2019-10-22 11:23:06,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-10-22 11:23:06,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2019-10-22 11:23:06,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-10-22 11:23:06,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 127 transitions. [2019-10-22 11:23:06,153 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 127 transitions. Word has length 19 [2019-10-22 11:23:06,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:06,153 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 127 transitions. [2019-10-22 11:23:06,153 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:06,153 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 127 transitions. [2019-10-22 11:23:06,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 11:23:06,154 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:06,154 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:06,155 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:06,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:06,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1012740860, now seen corresponding path program 1 times [2019-10-22 11:23:06,155 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:06,155 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640042183] [2019-10-22 11:23:06,155 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:06,156 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:06,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:06,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:06,237 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640042183] [2019-10-22 11:23:06,238 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:06,238 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:23:06,238 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107841621] [2019-10-22 11:23:06,238 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:06,239 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:06,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:06,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:06,239 INFO L87 Difference]: Start difference. First operand 87 states and 127 transitions. Second operand 3 states. [2019-10-22 11:23:06,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:06,298 INFO L93 Difference]: Finished difference Result 249 states and 369 transitions. [2019-10-22 11:23:06,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:06,299 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-22 11:23:06,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:06,300 INFO L225 Difference]: With dead ends: 249 [2019-10-22 11:23:06,300 INFO L226 Difference]: Without dead ends: 168 [2019-10-22 11:23:06,301 INFO L600 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 [2019-10-22 11:23:06,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-10-22 11:23:06,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 164. [2019-10-22 11:23:06,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2019-10-22 11:23:06,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 243 transitions. [2019-10-22 11:23:06,324 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 243 transitions. Word has length 24 [2019-10-22 11:23:06,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:06,325 INFO L462 AbstractCegarLoop]: Abstraction has 164 states and 243 transitions. [2019-10-22 11:23:06,325 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:06,325 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 243 transitions. [2019-10-22 11:23:06,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:23:06,326 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:06,326 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:06,327 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:06,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:06,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1198598115, now seen corresponding path program 1 times [2019-10-22 11:23:06,327 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:06,327 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406122381] [2019-10-22 11:23:06,328 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:06,328 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:06,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:06,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:06,419 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406122381] [2019-10-22 11:23:06,420 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:06,420 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:23:06,420 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13890728] [2019-10-22 11:23:06,420 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:06,421 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:06,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:06,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:06,421 INFO L87 Difference]: Start difference. First operand 164 states and 243 transitions. Second operand 3 states. [2019-10-22 11:23:06,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:06,479 INFO L93 Difference]: Finished difference Result 337 states and 504 transitions. [2019-10-22 11:23:06,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:06,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-10-22 11:23:06,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:06,481 INFO L225 Difference]: With dead ends: 337 [2019-10-22 11:23:06,481 INFO L226 Difference]: Without dead ends: 179 [2019-10-22 11:23:06,482 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:06,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2019-10-22 11:23:06,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177. [2019-10-22 11:23:06,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2019-10-22 11:23:06,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 255 transitions. [2019-10-22 11:23:06,508 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 255 transitions. Word has length 27 [2019-10-22 11:23:06,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:06,509 INFO L462 AbstractCegarLoop]: Abstraction has 177 states and 255 transitions. [2019-10-22 11:23:06,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:06,509 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 255 transitions. [2019-10-22 11:23:06,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:23:06,513 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:06,513 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:06,514 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:06,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:06,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1576081447, now seen corresponding path program 1 times [2019-10-22 11:23:06,514 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:06,514 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496646000] [2019-10-22 11:23:06,515 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:06,515 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:06,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:06,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:06,611 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496646000] [2019-10-22 11:23:06,611 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:06,611 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:23:06,611 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674637067] [2019-10-22 11:23:06,612 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:23:06,612 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:06,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:23:06,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:06,612 INFO L87 Difference]: Start difference. First operand 177 states and 255 transitions. Second operand 5 states. [2019-10-22 11:23:06,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:06,736 INFO L93 Difference]: Finished difference Result 899 states and 1311 transitions. [2019-10-22 11:23:06,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:23:06,737 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-10-22 11:23:06,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:06,739 INFO L225 Difference]: With dead ends: 899 [2019-10-22 11:23:06,740 INFO L226 Difference]: Without dead ends: 728 [2019-10-22 11:23:06,741 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:23:06,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2019-10-22 11:23:06,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 276. [2019-10-22 11:23:06,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2019-10-22 11:23:06,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 388 transitions. [2019-10-22 11:23:06,764 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 388 transitions. Word has length 27 [2019-10-22 11:23:06,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:06,765 INFO L462 AbstractCegarLoop]: Abstraction has 276 states and 388 transitions. [2019-10-22 11:23:06,765 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:23:06,765 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 388 transitions. [2019-10-22 11:23:06,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:23:06,766 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:06,766 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:06,766 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:06,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:06,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1018622107, now seen corresponding path program 1 times [2019-10-22 11:23:06,767 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:06,767 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631866] [2019-10-22 11:23:06,767 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:06,767 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:06,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:23:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:23:07,414 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:23:07,414 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:23:07,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:23:07 BoogieIcfgContainer [2019-10-22 11:23:07,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:23:07,494 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:23:07,494 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:23:07,494 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:23:07,495 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:05" (3/4) ... [2019-10-22 11:23:07,498 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 11:23:07,571 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_787b50fd-cb19-4979-87cf-f05a6db9e561/bin/utaipan/witness.graphml [2019-10-22 11:23:07,571 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:23:07,573 INFO L168 Benchmark]: Toolchain (without parser) took 3648.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 939.7 MB in the beginning and 972.8 MB in the end (delta: -33.2 MB). Peak memory consumption was 98.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:07,573 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:07,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 542.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -175.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:07,574 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.57 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:07,574 INFO L168 Benchmark]: Boogie Preprocessor took 68.46 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. [2019-10-22 11:23:07,575 INFO L168 Benchmark]: RCFGBuilder took 970.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 92.2 MB). Peak memory consumption was 92.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:07,575 INFO L168 Benchmark]: TraceAbstraction took 1907.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 985.0 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:07,575 INFO L168 Benchmark]: Witness Printer took 77.60 ms. Allocated memory is still 1.2 GB. Free memory was 985.0 MB in the beginning and 972.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:07,577 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 542.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -175.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 76.57 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 68.46 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. * RCFGBuilder took 970.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 92.2 MB). Peak memory consumption was 92.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1907.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 985.0 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * Witness Printer took 77.60 ms. Allocated memory is still 1.2 GB. Free memory was 985.0 MB in the beginning and 972.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 996]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L90] int pumpRunning = 0; [L91] int systemActive = 1; [L427] int waterLevel = 1; [L428] int methaneLevelCritical = 0; [L699] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L896] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L969] int retValue_acc ; [L970] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L976] tmp = valid_product() [L978] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L358] int splverifierCounter ; [L359] int tmp ; [L360] int tmp___0 ; [L361] int tmp___1 ; [L362] int tmp___2 ; [L365] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L367] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L369] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L375] tmp = __VERIFIER_nondet_int() [L377] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L445] COND TRUE waterLevel < 2 [L446] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L385] tmp___0 = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L395] tmp___2 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___2)) [L403] tmp___1 = __VERIFIER_nondet_int() [L405] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L334] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L341] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L98] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L105] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1002] int tmp ; [L1003] int tmp___0 ; [L1004] int tmp___1 ; [L466] int retValue_acc ; [L469] retValue_acc = methaneLevelCritical [L470] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1008] tmp = isMethaneLevelCritical() [L1010] COND FALSE !(\read(tmp)) [L498] int retValue_acc ; [L501] retValue_acc = waterLevel [L502] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1014] tmp___0 = getWaterLevel() [L1016] COND TRUE tmp___0 == 2 [L248] int retValue_acc ; [L251] retValue_acc = pumpRunning [L252] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1018] tmp___1 = isPumpRunning() [L1020] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L996] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 233 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 869 SDtfs, 694 SDslu, 598 SDs, 0 SdLazy, 73 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=276occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 458 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 4790 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...