./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product36.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_ba4c680b-8d87-48fa-ab2b-a1cf581b4893/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ba4c680b-8d87-48fa-ab2b-a1cf581b4893/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ba4c680b-8d87-48fa-ab2b-a1cf581b4893/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ba4c680b-8d87-48fa-ab2b-a1cf581b4893/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ba4c680b-8d87-48fa-ab2b-a1cf581b4893/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ba4c680b-8d87-48fa-ab2b-a1cf581b4893/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 deeb3c1689cccb41b32be052288e2f3a90dc0e8e .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:22:06,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:06,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:06,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:06,963 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:06,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:06,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:06,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:06,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:06,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:06,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:06,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:06,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:06,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:06,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:06,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:06,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:06,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:06,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:06,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:06,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:06,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:06,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:06,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:06,983 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:06,983 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:06,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:06,984 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:06,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:06,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:06,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:06,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:06,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:06,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:06,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:06,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:06,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:06,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:06,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:06,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:06,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:06,992 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ba4c680b-8d87-48fa-ab2b-a1cf581b4893/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:22:07,002 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:07,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:07,003 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:07,004 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:07,004 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:07,004 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:07,004 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:22:07,004 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:07,005 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:07,005 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:22:07,005 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:22:07,005 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:07,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:07,006 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:07,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:22:07,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:07,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:07,007 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:22:07,007 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:07,007 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:22:07,007 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:07,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:22:07,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:22:07,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:07,008 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:07,009 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:07,009 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:07,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:07,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:07,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:07,009 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:22:07,010 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:22:07,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:22:07,010 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:22:07,010 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:07,010 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_ba4c680b-8d87-48fa-ab2b-a1cf581b4893/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 -> deeb3c1689cccb41b32be052288e2f3a90dc0e8e [2019-10-22 11:22:07,037 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:07,050 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:07,054 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:07,061 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:07,061 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:07,062 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ba4c680b-8d87-48fa-ab2b-a1cf581b4893/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c [2019-10-22 11:22:07,116 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ba4c680b-8d87-48fa-ab2b-a1cf581b4893/bin/utaipan/data/46a8c402d/b2282ef0439949a2800e757b011a139e/FLAG5b05763b8 [2019-10-22 11:22:07,542 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:07,545 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ba4c680b-8d87-48fa-ab2b-a1cf581b4893/sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c [2019-10-22 11:22:07,563 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ba4c680b-8d87-48fa-ab2b-a1cf581b4893/bin/utaipan/data/46a8c402d/b2282ef0439949a2800e757b011a139e/FLAG5b05763b8 [2019-10-22 11:22:07,582 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ba4c680b-8d87-48fa-ab2b-a1cf581b4893/bin/utaipan/data/46a8c402d/b2282ef0439949a2800e757b011a139e [2019-10-22 11:22:07,585 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:07,587 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:07,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:07,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:07,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:07,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:07" (1/1) ... [2019-10-22 11:22:07,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30031fa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:07, skipping insertion in model container [2019-10-22 11:22:07,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:07" (1/1) ... [2019-10-22 11:22:07,606 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:07,662 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:08,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:08,020 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:08,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:08,138 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:08,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:08 WrapperNode [2019-10-22 11:22:08,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:08,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:08,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:08,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:08,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:08" (1/1) ... [2019-10-22 11:22:08,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:08" (1/1) ... [2019-10-22 11:22:08,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:08,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:08,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:08,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:08,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:08" (1/1) ... [2019-10-22 11:22:08,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:08" (1/1) ... [2019-10-22 11:22:08,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:08" (1/1) ... [2019-10-22 11:22:08,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:08" (1/1) ... [2019-10-22 11:22:08,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:08" (1/1) ... [2019-10-22 11:22:08,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:08" (1/1) ... [2019-10-22 11:22:08,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:08" (1/1) ... [2019-10-22 11:22:08,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:08,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:08,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:08,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:08,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ba4c680b-8d87-48fa-ab2b-a1cf581b4893/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 11:22:08,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:22:08,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:22:08,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:08,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:09,053 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:09,053 INFO L284 CfgBuilder]: Removed 108 assume(true) statements. [2019-10-22 11:22:09,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:09 BoogieIcfgContainer [2019-10-22 11:22:09,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:09,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:09,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:09,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:09,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:07" (1/3) ... [2019-10-22 11:22:09,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75c9eaac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:09, skipping insertion in model container [2019-10-22 11:22:09,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:08" (2/3) ... [2019-10-22 11:22:09,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75c9eaac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:09, skipping insertion in model container [2019-10-22 11:22:09,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:09" (3/3) ... [2019-10-22 11:22:09,065 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product36.cil.c [2019-10-22 11:22:09,074 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:09,081 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:22:09,089 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:22:09,114 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:09,114 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:22:09,114 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:09,114 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:09,117 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:09,117 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:09,117 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:09,117 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:09,134 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2019-10-22 11:22:09,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 11:22:09,140 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:09,141 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 11:22:09,143 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:09,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:09,147 INFO L82 PathProgramCache]: Analyzing trace with hash -386332649, now seen corresponding path program 1 times [2019-10-22 11:22:09,156 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:09,156 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948052773] [2019-10-22 11:22:09,157 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:09,157 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:09,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:09,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:09,428 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 11:22:09,429 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948052773] [2019-10-22 11:22:09,430 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:09,431 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:22:09,432 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183279723] [2019-10-22 11:22:09,437 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:22:09,438 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:09,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:22:09,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:22:09,457 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 2 states. [2019-10-22 11:22:09,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:09,489 INFO L93 Difference]: Finished difference Result 166 states and 251 transitions. [2019-10-22 11:22:09,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:22:09,490 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-22 11:22:09,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:09,503 INFO L225 Difference]: With dead ends: 166 [2019-10-22 11:22:09,505 INFO L226 Difference]: Without dead ends: 82 [2019-10-22 11:22:09,508 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 11:22:09,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-10-22 11:22:09,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2019-10-22 11:22:09,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-10-22 11:22:09,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 117 transitions. [2019-10-22 11:22:09,552 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 117 transitions. Word has length 18 [2019-10-22 11:22:09,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:09,553 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 117 transitions. [2019-10-22 11:22:09,553 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:22:09,553 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 117 transitions. [2019-10-22 11:22:09,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:22:09,554 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:09,554 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 11:22:09,554 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:09,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:09,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1847726980, now seen corresponding path program 1 times [2019-10-22 11:22:09,555 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:09,555 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025855000] [2019-10-22 11:22:09,555 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:09,555 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:09,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:09,648 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 11:22:09,648 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025855000] [2019-10-22 11:22:09,648 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:09,648 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:22:09,649 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368257792] [2019-10-22 11:22:09,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:09,650 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:09,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:09,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:09,651 INFO L87 Difference]: Start difference. First operand 82 states and 117 transitions. Second operand 3 states. [2019-10-22 11:22:09,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:09,666 INFO L93 Difference]: Finished difference Result 82 states and 117 transitions. [2019-10-22 11:22:09,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:09,667 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 11:22:09,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:09,668 INFO L225 Difference]: With dead ends: 82 [2019-10-22 11:22:09,668 INFO L226 Difference]: Without dead ends: 38 [2019-10-22 11:22:09,669 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 11:22:09,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-10-22 11:22:09,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-10-22 11:22:09,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-10-22 11:22:09,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2019-10-22 11:22:09,674 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2019-10-22 11:22:09,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:09,674 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2019-10-22 11:22:09,674 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:09,674 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2019-10-22 11:22:09,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 11:22:09,675 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:09,675 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 11:22:09,675 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:09,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:09,675 INFO L82 PathProgramCache]: Analyzing trace with hash 2067739700, now seen corresponding path program 1 times [2019-10-22 11:22:09,676 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:09,678 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012761064] [2019-10-22 11:22:09,678 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:09,678 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:09,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:09,742 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 11:22:09,742 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012761064] [2019-10-22 11:22:09,743 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:09,743 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:22:09,743 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730159107] [2019-10-22 11:22:09,743 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:09,743 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:09,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:09,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:09,744 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand 3 states. [2019-10-22 11:22:09,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:09,791 INFO L93 Difference]: Finished difference Result 102 states and 150 transitions. [2019-10-22 11:22:09,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:09,794 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-22 11:22:09,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:09,795 INFO L225 Difference]: With dead ends: 102 [2019-10-22 11:22:09,795 INFO L226 Difference]: Without dead ends: 70 [2019-10-22 11:22:09,796 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 11:22:09,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-10-22 11:22:09,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2019-10-22 11:22:09,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-10-22 11:22:09,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 97 transitions. [2019-10-22 11:22:09,812 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 97 transitions. Word has length 24 [2019-10-22 11:22:09,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:09,813 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 97 transitions. [2019-10-22 11:22:09,813 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:09,813 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 97 transitions. [2019-10-22 11:22:09,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 11:22:09,813 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:09,814 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] [2019-10-22 11:22:09,814 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:09,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:09,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1859072455, now seen corresponding path program 1 times [2019-10-22 11:22:09,814 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:09,815 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621406871] [2019-10-22 11:22:09,815 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:09,815 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:09,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:09,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:09,888 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 11:22:09,888 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621406871] [2019-10-22 11:22:09,889 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:09,889 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:22:09,889 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509940330] [2019-10-22 11:22:09,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:09,890 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:09,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:09,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:09,890 INFO L87 Difference]: Start difference. First operand 66 states and 97 transitions. Second operand 3 states. [2019-10-22 11:22:09,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:09,920 INFO L93 Difference]: Finished difference Result 171 states and 256 transitions. [2019-10-22 11:22:09,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:09,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-22 11:22:09,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:09,922 INFO L225 Difference]: With dead ends: 171 [2019-10-22 11:22:09,922 INFO L226 Difference]: Without dead ends: 111 [2019-10-22 11:22:09,922 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 11:22:09,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-10-22 11:22:09,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2019-10-22 11:22:09,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-10-22 11:22:09,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 159 transitions. [2019-10-22 11:22:09,934 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 159 transitions. Word has length 25 [2019-10-22 11:22:09,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:09,934 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 159 transitions. [2019-10-22 11:22:09,934 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:09,934 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 159 transitions. [2019-10-22 11:22:09,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:22:09,935 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:09,935 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 11:22:09,935 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:09,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:09,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1504399113, now seen corresponding path program 1 times [2019-10-22 11:22:09,936 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:09,936 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535095627] [2019-10-22 11:22:09,936 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:09,937 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:09,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:10,022 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 11:22:10,022 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535095627] [2019-10-22 11:22:10,022 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:10,022 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:22:10,023 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825211888] [2019-10-22 11:22:10,023 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:10,023 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:10,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:10,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:10,024 INFO L87 Difference]: Start difference. First operand 109 states and 159 transitions. Second operand 5 states. [2019-10-22 11:22:10,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:10,148 INFO L93 Difference]: Finished difference Result 597 states and 891 transitions. [2019-10-22 11:22:10,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:22:10,149 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-10-22 11:22:10,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:10,152 INFO L225 Difference]: With dead ends: 597 [2019-10-22 11:22:10,152 INFO L226 Difference]: Without dead ends: 494 [2019-10-22 11:22:10,153 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 11:22:10,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2019-10-22 11:22:10,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 198. [2019-10-22 11:22:10,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2019-10-22 11:22:10,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 280 transitions. [2019-10-22 11:22:10,186 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 280 transitions. Word has length 27 [2019-10-22 11:22:10,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:10,186 INFO L462 AbstractCegarLoop]: Abstraction has 198 states and 280 transitions. [2019-10-22 11:22:10,186 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:10,186 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 280 transitions. [2019-10-22 11:22:10,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:22:10,187 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:10,188 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 11:22:10,188 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:10,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:10,189 INFO L82 PathProgramCache]: Analyzing trace with hash -195864629, now seen corresponding path program 1 times [2019-10-22 11:22:10,189 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:10,189 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211836751] [2019-10-22 11:22:10,189 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:10,189 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:10,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:22:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:22:11,043 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:22:11,044 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:22:11,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:22:11 BoogieIcfgContainer [2019-10-22 11:22:11,144 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:22:11,145 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:22:11,145 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:22:11,145 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:22:11,146 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:09" (3/4) ... [2019-10-22 11:22:11,149 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 11:22:11,230 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ba4c680b-8d87-48fa-ab2b-a1cf581b4893/bin/utaipan/witness.graphml [2019-10-22 11:22:11,232 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:22:11,235 INFO L168 Benchmark]: Toolchain (without parser) took 3648.02 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 254.3 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -238.7 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:11,236 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:11,236 INFO L168 Benchmark]: CACSL2BoogieTranslator took 550.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -204.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:11,237 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:11,237 INFO L168 Benchmark]: Boogie Preprocessor took 39.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:11,237 INFO L168 Benchmark]: RCFGBuilder took 815.47 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: 64.7 MB). Peak memory consumption was 64.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:11,237 INFO L168 Benchmark]: TraceAbstraction took 2089.33 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 86.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -122.7 MB). Peak memory consumption was 254.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:11,238 INFO L168 Benchmark]: Witness Printer took 87.89 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:11,240 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 550.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -204.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 815.47 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: 64.7 MB). Peak memory consumption was 64.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2089.33 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 86.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -122.7 MB). Peak memory consumption was 254.9 MB. Max. memory is 11.5 GB. * Witness Printer took 87.89 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L218] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L675] int waterLevel = 1; [L676] int methaneLevelCritical = 0; [L769] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L845] int retValue_acc ; [L846] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L894] int retValue_acc ; [L897] retValue_acc = 1 [L898] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L852] tmp = valid_product() [L854] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L606] int splverifierCounter ; [L607] int tmp ; [L608] int tmp___0 ; [L609] int tmp___1 ; [L610] int tmp___2 ; [L613] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L615] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L617] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L623] tmp = __VERIFIER_nondet_int() [L625] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L693] COND TRUE waterLevel < 2 [L694] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L633] tmp___0 = __VERIFIER_nondet_int() [L635] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L643] tmp___2 = __VERIFIER_nondet_int() [L645] COND FALSE !(\read(tmp___2)) [L651] tmp___1 = __VERIFIER_nondet_int() [L653] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L582] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L589] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L434] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L441] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L904] int tmp ; [L905] int tmp___0 ; [L906] int tmp___1 ; [L714] int retValue_acc ; [L717] retValue_acc = methaneLevelCritical [L718] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L910] tmp = isMethaneLevelCritical() [L912] COND FALSE !(\read(tmp)) [L746] int retValue_acc ; [L749] retValue_acc = waterLevel [L750] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L916] tmp___0 = getWaterLevel() [L918] COND TRUE tmp___0 == 2 [L515] int retValue_acc ; [L518] retValue_acc = pumpRunning [L519] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L920] tmp___1 = isPumpRunning() [L922] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L44] __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, 86 locations, 3 error locations. Result: UNSAFE, OverallTime: 2.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 363 SDtfs, 349 SDslu, 289 SDs, 0 SdLazy, 56 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s 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=198occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 302 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 4522 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...