./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.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_5a38099e-debf-41ff-b348-a586570e61ea/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5a38099e-debf-41ff-b348-a586570e61ea/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5a38099e-debf-41ff-b348-a586570e61ea/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5a38099e-debf-41ff-b348-a586570e61ea/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5a38099e-debf-41ff-b348-a586570e61ea/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5a38099e-debf-41ff-b348-a586570e61ea/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 b183a84398514a30f054101bd4fa282044f4519d ............................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:25:30,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:25:30,921 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:25:30,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:25:30,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:25:30,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:25:30,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:25:30,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:25:30,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:25:30,948 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:25:30,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:25:30,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:25:30,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:25:30,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:25:30,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:25:30,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:25:30,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:25:30,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:25:30,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:25:30,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:25:30,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:25:30,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:25:30,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:25:30,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:25:30,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:25:30,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:25:30,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:25:30,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:25:30,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:25:30,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:25:30,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:25:30,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:25:30,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:25:30,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:25:30,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:25:30,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:25:30,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:25:30,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:25:30,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:25:30,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:25:30,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:25:30,984 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5a38099e-debf-41ff-b348-a586570e61ea/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:25:30,997 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:25:30,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:25:30,998 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:25:30,998 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:25:30,998 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:25:30,998 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:25:30,998 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:25:30,999 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:25:30,999 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:25:30,999 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:25:30,999 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:25:30,999 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:25:31,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:25:31,002 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:25:31,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:25:31,003 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:25:31,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:25:31,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:25:31,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:25:31,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:25:31,003 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:25:31,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:25:31,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:25:31,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:25:31,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:25:31,004 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:25:31,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:25:31,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:31,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:25:31,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:25:31,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:25:31,005 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:25:31,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:25:31,005 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:25:31,005 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:25:31,005 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_5a38099e-debf-41ff-b348-a586570e61ea/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 -> b183a84398514a30f054101bd4fa282044f4519d [2019-10-22 11:25:31,036 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:25:31,048 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:25:31,051 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:25:31,054 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:25:31,054 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:25:31,055 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5a38099e-debf-41ff-b348-a586570e61ea/bin/utaipan/../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2019-10-22 11:25:31,106 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5a38099e-debf-41ff-b348-a586570e61ea/bin/utaipan/data/46bd2917a/72a482dbd9294ec6aa6da8f5e248aef7/FLAG293dc224a [2019-10-22 11:25:31,490 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:25:31,491 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5a38099e-debf-41ff-b348-a586570e61ea/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2019-10-22 11:25:31,499 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5a38099e-debf-41ff-b348-a586570e61ea/bin/utaipan/data/46bd2917a/72a482dbd9294ec6aa6da8f5e248aef7/FLAG293dc224a [2019-10-22 11:25:31,510 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5a38099e-debf-41ff-b348-a586570e61ea/bin/utaipan/data/46bd2917a/72a482dbd9294ec6aa6da8f5e248aef7 [2019-10-22 11:25:31,513 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:25:31,514 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:25:31,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:31,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:25:31,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:25:31,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:31" (1/1) ... [2019-10-22 11:25:31,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dd21baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:31, skipping insertion in model container [2019-10-22 11:25:31,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:31" (1/1) ... [2019-10-22 11:25:31,529 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:25:31,549 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:25:31,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:31,695 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:25:31,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:31,791 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:25:31,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:31 WrapperNode [2019-10-22 11:25:31,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:31,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:31,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:25:31,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:25:31,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:31" (1/1) ... [2019-10-22 11:25:31,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:31" (1/1) ... [2019-10-22 11:25:31,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:31,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:25:31,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:25:31,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:25:31,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:31" (1/1) ... [2019-10-22 11:25:31,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:31" (1/1) ... [2019-10-22 11:25:31,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:31" (1/1) ... [2019-10-22 11:25:31,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:31" (1/1) ... [2019-10-22 11:25:31,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:31" (1/1) ... [2019-10-22 11:25:31,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:31" (1/1) ... [2019-10-22 11:25:31,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:31" (1/1) ... [2019-10-22 11:25:31,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:25:31,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:25:31,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:25:31,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:25:31,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5a38099e-debf-41ff-b348-a586570e61ea/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 11:25:31,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:25:31,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:25:32,190 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:25:32,190 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 11:25:32,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:32 BoogieIcfgContainer [2019-10-22 11:25:32,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:25:32,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:25:32,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:25:32,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:25:32,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:25:31" (1/3) ... [2019-10-22 11:25:32,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75684193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:32, skipping insertion in model container [2019-10-22 11:25:32,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:31" (2/3) ... [2019-10-22 11:25:32,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75684193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:32, skipping insertion in model container [2019-10-22 11:25:32,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:32" (3/3) ... [2019-10-22 11:25:32,204 INFO L109 eAbstractionObserver]: Analyzing ICFG mod3.c.v+lhb-reducer.c [2019-10-22 11:25:32,211 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:25:32,217 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:25:32,227 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:25:32,246 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:25:32,246 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:25:32,246 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:25:32,247 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:25:32,247 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:25:32,247 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:25:32,247 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:25:32,247 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:25:32,260 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-10-22 11:25:32,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 11:25:32,269 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:32,270 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:32,272 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:32,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:32,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1053789450, now seen corresponding path program 1 times [2019-10-22 11:25:32,287 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:32,289 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520545304] [2019-10-22 11:25:32,289 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:32,289 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:32,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:32,666 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 11:25:32,668 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520545304] [2019-10-22 11:25:32,669 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:32,670 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:25:32,670 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110672517] [2019-10-22 11:25:32,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:25:32,676 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:32,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:25:32,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:25:32,694 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2019-10-22 11:25:32,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:32,844 INFO L93 Difference]: Finished difference Result 48 states and 64 transitions. [2019-10-22 11:25:32,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:25:32,846 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-10-22 11:25:32,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:32,852 INFO L225 Difference]: With dead ends: 48 [2019-10-22 11:25:32,852 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:25:32,855 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:32,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:25:32,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:25:32,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:25:32,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:25:32,880 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-10-22 11:25:32,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:32,880 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:25:32,880 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:25:32,880 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:25:32,880 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:25:32,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:25:32,912 INFO L443 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2019-10-22 11:25:32,912 INFO L443 ceAbstractionStarter]: For program point L126(lines 126 141) no Hoare annotation was computed. [2019-10-22 11:25:32,912 INFO L443 ceAbstractionStarter]: For program point L60(lines 60 82) no Hoare annotation was computed. [2019-10-22 11:25:32,912 INFO L443 ceAbstractionStarter]: For program point L23(lines 23 143) no Hoare annotation was computed. [2019-10-22 11:25:32,913 INFO L446 ceAbstractionStarter]: At program point L147(lines 14 149) the Hoare annotation is: true [2019-10-22 11:25:32,913 INFO L446 ceAbstractionStarter]: At program point L81(lines 15 149) the Hoare annotation is: true [2019-10-22 11:25:32,913 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:25:32,913 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:25:32,913 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:25:32,913 INFO L443 ceAbstractionStarter]: For program point L115(lines 115 142) no Hoare annotation was computed. [2019-10-22 11:25:32,913 INFO L446 ceAbstractionStarter]: At program point L140(lines 23 143) the Hoare annotation is: true [2019-10-22 11:25:32,914 INFO L443 ceAbstractionStarter]: For program point L37(lines 37 84) no Hoare annotation was computed. [2019-10-22 11:25:32,915 INFO L446 ceAbstractionStarter]: At program point L132(lines 23 143) the Hoare annotation is: true [2019-10-22 11:25:32,915 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 97) no Hoare annotation was computed. [2019-10-22 11:25:32,915 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:25:32,915 INFO L443 ceAbstractionStarter]: For program point L95(lines 95 104) no Hoare annotation was computed. [2019-10-22 11:25:32,915 INFO L439 ceAbstractionStarter]: At program point L120(lines 23 143) the Hoare annotation is: (<= (* 2863311531 ULTIMATE.start_main_~main__x~0) (let ((.cse0 (div ULTIMATE.start_main_~main__x~0 4294967296))) (+ (* 8589934592 (div (+ ULTIMATE.start_main_~main__x~0 (* .cse0 (- 4294967296))) 3)) (* 12297829383904690176 .cse0) 1431655765))) [2019-10-22 11:25:32,915 INFO L439 ceAbstractionStarter]: At program point L54(lines 24 112) the Hoare annotation is: (<= (* 2863311531 ULTIMATE.start_main_~main__x~0) (let ((.cse0 (div ULTIMATE.start_main_~main__x~0 4294967296))) (+ (* 8589934592 (div (+ ULTIMATE.start_main_~main__x~0 (* .cse0 (- 4294967296))) 3)) (* 12297829383904690176 .cse0) 1431655765))) [2019-10-22 11:25:32,916 INFO L443 ceAbstractionStarter]: For program point L21(lines 21 148) no Hoare annotation was computed. [2019-10-22 11:25:32,916 INFO L443 ceAbstractionStarter]: For program point L46(lines 46 83) no Hoare annotation was computed. [2019-10-22 11:25:32,916 INFO L439 ceAbstractionStarter]: At program point L42(lines 24 112) the Hoare annotation is: (<= (* 2863311531 ULTIMATE.start_main_~main__x~0) (let ((.cse0 (div ULTIMATE.start_main_~main__x~0 4294967296))) (+ (* 8589934592 (div (+ ULTIMATE.start_main_~main__x~0 (* .cse0 (- 4294967296))) 3)) (* 12297829383904690176 .cse0) 1431655765))) [2019-10-22 11:25:32,916 INFO L443 ceAbstractionStarter]: For program point L88(lines 88 110) no Hoare annotation was computed. [2019-10-22 11:25:32,916 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 111) no Hoare annotation was computed. [2019-10-22 11:25:32,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:25:32 BoogieIcfgContainer [2019-10-22 11:25:32,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:25:32,935 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:25:32,935 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:25:32,935 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:25:32,936 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:32" (3/4) ... [2019-10-22 11:25:32,940 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:25:32,951 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 11:25:32,953 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:25:33,031 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5a38099e-debf-41ff-b348-a586570e61ea/bin/utaipan/witness.graphml [2019-10-22 11:25:33,032 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:25:33,034 INFO L168 Benchmark]: Toolchain (without parser) took 1519.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -133.9 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:33,034 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:33,035 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -203.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:33,035 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.59 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 11:25:33,036 INFO L168 Benchmark]: Boogie Preprocessor took 37.08 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:33,037 INFO L168 Benchmark]: RCFGBuilder took 324.04 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:33,037 INFO L168 Benchmark]: TraceAbstraction took 742.03 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:33,038 INFO L168 Benchmark]: Witness Printer took 97.78 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 11:25:33,040 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 277.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -203.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.59 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. * Boogie Preprocessor took 37.08 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 324.04 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 742.03 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Witness Printer took 97.78 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 97]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 2863311531 * main__x <= 8589934592 * ((main__x + main__x / 4294967296 * -4294967296) / 3) + 12297829383904690176 * (main__x / 4294967296) + 1431655765 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 2863311531 * main__x <= 8589934592 * ((main__x + main__x / 4294967296 * -4294967296) / 3) + 12297829383904690176 * (main__x / 4294967296) + 1431655765 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 2863311531 * main__x <= 8589934592 * ((main__x + main__x / 4294967296 * -4294967296) / 3) + 12297829383904690176 * (main__x / 4294967296) + 1431655765 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 1 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 25 SDtfs, 12 SDslu, 30 SDs, 0 SdLazy, 18 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 16 NumberOfFragments, 70 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 970 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 correct! Received shutdown request...