./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/sumt6.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b0ea3f39-cbed-4be3-9443-b0c69de4ad62/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b0ea3f39-cbed-4be3-9443-b0c69de4ad62/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b0ea3f39-cbed-4be3-9443-b0c69de4ad62/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b0ea3f39-cbed-4be3-9443-b0c69de4ad62/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/sumt6.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b0ea3f39-cbed-4be3-9443-b0c69de4ad62/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b0ea3f39-cbed-4be3-9443-b0c69de4ad62/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 b2d6436292c43c9d1f9f0e696303340ddfde1005 ...................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:36:28,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:36:28,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:36:28,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:36:28,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:36:28,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:36:28,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:36:28,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:36:28,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:36:28,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:36:28,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:36:28,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:36:28,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:36:28,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:36:28,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:36:28,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:36:28,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:36:28,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:36:28,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:36:28,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:36:28,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:36:28,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:36:28,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:36:28,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:36:28,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:36:28,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:36:28,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:36:28,455 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:36:28,455 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:36:28,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:36:28,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:36:28,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:36:28,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:36:28,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:36:28,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:36:28,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:36:28,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:36:28,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:36:28,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:36:28,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:36:28,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:36:28,463 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b0ea3f39-cbed-4be3-9443-b0c69de4ad62/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:36:28,476 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:36:28,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:36:28,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:36:28,478 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:36:28,478 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:36:28,478 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:36:28,478 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:36:28,479 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:36:28,479 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:36:28,479 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:36:28,479 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:36:28,480 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:36:28,480 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:36:28,480 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:36:28,480 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:36:28,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:36:28,481 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:36:28,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:36:28,482 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:36:28,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:36:28,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:36:28,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:36:28,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:36:28,483 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:36:28,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:36:28,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:36:28,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:36:28,484 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:36:28,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:36:28,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:36:28,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:36:28,485 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:36:28,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:36:28,485 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:36:28,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:36:28,486 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:36:28,486 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:36:28,486 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b0ea3f39-cbed-4be3-9443-b0c69de4ad62/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 -> b2d6436292c43c9d1f9f0e696303340ddfde1005 [2019-11-26 02:36:28,638 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:36:28,649 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:36:28,652 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:36:28,653 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:36:28,654 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:36:28,654 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b0ea3f39-cbed-4be3-9443-b0c69de4ad62/bin/utaipan/../../sv-benchmarks/c/loops-crafted-1/sumt6.c [2019-11-26 02:36:28,711 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b0ea3f39-cbed-4be3-9443-b0c69de4ad62/bin/utaipan/data/68f3362f8/86c9d990f819441d8a92653c302d3d9c/FLAGda740af1d [2019-11-26 02:36:29,070 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:36:29,071 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b0ea3f39-cbed-4be3-9443-b0c69de4ad62/sv-benchmarks/c/loops-crafted-1/sumt6.c [2019-11-26 02:36:29,077 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b0ea3f39-cbed-4be3-9443-b0c69de4ad62/bin/utaipan/data/68f3362f8/86c9d990f819441d8a92653c302d3d9c/FLAGda740af1d [2019-11-26 02:36:29,439 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b0ea3f39-cbed-4be3-9443-b0c69de4ad62/bin/utaipan/data/68f3362f8/86c9d990f819441d8a92653c302d3d9c [2019-11-26 02:36:29,442 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:36:29,443 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:36:29,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:36:29,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:36:29,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:36:29,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:36:29" (1/1) ... [2019-11-26 02:36:29,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eb82acf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:29, skipping insertion in model container [2019-11-26 02:36:29,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:36:29" (1/1) ... [2019-11-26 02:36:29,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:36:29,468 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:36:29,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:36:29,609 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:36:29,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:36:29,708 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:36:29,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:29 WrapperNode [2019-11-26 02:36:29,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:36:29,709 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:36:29,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:36:29,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:36:29,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:29" (1/1) ... [2019-11-26 02:36:29,723 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:29" (1/1) ... [2019-11-26 02:36:29,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:36:29,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:36:29,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:36:29,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:36:29,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:29" (1/1) ... [2019-11-26 02:36:29,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:29" (1/1) ... [2019-11-26 02:36:29,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:29" (1/1) ... [2019-11-26 02:36:29,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:29" (1/1) ... [2019-11-26 02:36:29,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:29" (1/1) ... [2019-11-26 02:36:29,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:29" (1/1) ... [2019-11-26 02:36:29,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:29" (1/1) ... [2019-11-26 02:36:29,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:36:29,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:36:29,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:36:29,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:36:29,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b0ea3f39-cbed-4be3-9443-b0c69de4ad62/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:36:29,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:36:29,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:36:30,757 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:36:30,757 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-26 02:36:30,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:30 BoogieIcfgContainer [2019-11-26 02:36:30,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:36:30,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:36:30,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:36:30,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:36:30,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:36:29" (1/3) ... [2019-11-26 02:36:30,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2771ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:36:30, skipping insertion in model container [2019-11-26 02:36:30,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:29" (2/3) ... [2019-11-26 02:36:30,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2771ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:36:30, skipping insertion in model container [2019-11-26 02:36:30,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:30" (3/3) ... [2019-11-26 02:36:30,766 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt6.c [2019-11-26 02:36:30,776 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:36:30,782 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:36:30,793 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:36:30,818 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:36:30,819 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:36:30,819 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:36:30,819 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:36:30,819 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:36:30,820 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:36:30,820 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:36:30,820 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:36:30,831 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-26 02:36:30,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-26 02:36:30,837 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:36:30,837 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-26 02:36:30,837 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:36:30,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:36:30,842 INFO L82 PathProgramCache]: Analyzing trace with hash 86165823, now seen corresponding path program 1 times [2019-11-26 02:36:30,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:36:30,849 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585721550] [2019-11-26 02:36:30,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:36:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:36:31,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:36:31,110 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585721550] [2019-11-26 02:36:31,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:36:31,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:36:31,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465385887] [2019-11-26 02:36:31,118 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:36:31,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:36:31,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:36:31,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:36:31,134 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2019-11-26 02:36:31,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:36:31,255 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-11-26 02:36:31,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:36:31,257 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-26 02:36:31,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:36:31,266 INFO L225 Difference]: With dead ends: 14 [2019-11-26 02:36:31,266 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:36:31,270 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:36:31,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:36:31,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:36:31,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:36:31,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:36:31,295 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-11-26 02:36:31,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:36:31,296 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:36:31,296 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:36:31,297 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:36:31,297 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:36:31,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:36:31,397 INFO L444 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-11-26 02:36:31,397 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:36:31,397 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-26 02:36:31,398 INFO L440 ceAbstractionStarter]: At program point L16-2(lines 16 31) the Hoare annotation is: (let ((.cse3 (div ULTIMATE.start_main_~l~0 4294967296)) (.cse2 (div (+ ULTIMATE.start_main_~v2~0 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~v3~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~j~0) 4294967296))) (let ((.cse1 (+ (* 4294967296 .cse2) ULTIMATE.start_main_~l~0)) (.cse0 (* 4294967296 .cse3))) (and (<= (+ .cse0 ULTIMATE.start_main_~v2~0 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~v3~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~j~0) .cse1) (< .cse1 (+ .cse0 ULTIMATE.start_main_~v2~0 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~v3~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~j~0 1)) (< .cse2 (+ .cse3 1))))) [2019-11-26 02:36:31,398 INFO L444 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-26 02:36:31,398 INFO L440 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: (let ((.cse3 (div ULTIMATE.start_main_~l~0 4294967296)) (.cse2 (div (+ ULTIMATE.start_main_~v2~0 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~v3~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~j~0) 4294967296))) (let ((.cse1 (+ (* 4294967296 .cse2) ULTIMATE.start_main_~l~0)) (.cse0 (* 4294967296 .cse3))) (and (<= (+ .cse0 ULTIMATE.start_main_~v2~0 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~v3~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~j~0) .cse1) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (< .cse1 (+ .cse0 ULTIMATE.start_main_~v2~0 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~v3~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~j~0 1)) (< .cse2 (+ .cse3 1))))) [2019-11-26 02:36:31,399 INFO L440 ceAbstractionStarter]: At program point L33(lines 11 34) the Hoare annotation is: (let ((.cse3 (div ULTIMATE.start_main_~l~0 4294967296)) (.cse2 (div (+ ULTIMATE.start_main_~v2~0 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~v3~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~j~0) 4294967296))) (let ((.cse1 (+ (* 4294967296 .cse2) ULTIMATE.start_main_~l~0)) (.cse0 (* 4294967296 .cse3))) (and (<= (+ .cse0 ULTIMATE.start_main_~v2~0 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~v3~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~j~0) .cse1) (< .cse1 (+ .cse0 ULTIMATE.start_main_~v2~0 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~v3~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~j~0 1)) (< .cse2 (+ .cse3 1))))) [2019-11-26 02:36:31,399 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:36:31,399 INFO L444 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-26 02:36:31,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:36:31 BoogieIcfgContainer [2019-11-26 02:36:31,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:36:31,437 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:36:31,437 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:36:31,437 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:36:31,438 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:30" (3/4) ... [2019-11-26 02:36:31,441 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:36:31,457 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-11-26 02:36:31,457 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-26 02:36:31,509 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b0ea3f39-cbed-4be3-9443-b0c69de4ad62/bin/utaipan/witness.graphml [2019-11-26 02:36:31,509 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:36:31,511 INFO L168 Benchmark]: Toolchain (without parser) took 2067.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -125.3 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:31,512 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:36:31,512 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -204.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:31,513 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:36:31,513 INFO L168 Benchmark]: Boogie Preprocessor took 21.47 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:31,514 INFO L168 Benchmark]: RCFGBuilder took 994.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:31,514 INFO L168 Benchmark]: TraceAbstraction took 677.10 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: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:31,515 INFO L168 Benchmark]: Witness Printer took 72.51 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:31,517 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 265.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -204.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.99 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 21.47 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 994.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 677.10 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: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. * Witness Printer took 72.51 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 11]: Loop Invariant Derived loop invariant: (4294967296 * (l / 4294967296) + v2 + i + v3 + k + v4 + j <= 4294967296 * ((v2 + i + v3 + k + v4 + j) / 4294967296) + l && 4294967296 * ((v2 + i + v3 + k + v4 + j) / 4294967296) + l < 4294967296 * (l / 4294967296) + v2 + i + v3 + k + v4 + j + 1) && (v2 + i + v3 + k + v4 + j) / 4294967296 < l / 4294967296 + 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((4294967296 * (l / 4294967296) + v2 + i + v3 + k + v4 + j <= 4294967296 * ((v2 + i + v3 + k + v4 + j) / 4294967296) + l && !(0 == cond)) && 4294967296 * ((v2 + i + v3 + k + v4 + j) / 4294967296) + l < 4294967296 * (l / 4294967296) + v2 + i + v3 + k + v4 + j + 1) && (v2 + i + v3 + k + v4 + j) / 4294967296 < l / 4294967296 + 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: (4294967296 * (l / 4294967296) + v2 + i + v3 + k + v4 + j <= 4294967296 * ((v2 + i + v3 + k + v4 + j) / 4294967296) + l && 4294967296 * ((v2 + i + v3 + k + v4 + j) / 4294967296) + l < 4294967296 * (l / 4294967296) + v2 + i + v3 + k + v4 + j + 1) && (v2 + i + v3 + k + v4 + j) / 4294967296 < l / 4294967296 + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 8 SDslu, 4 SDs, 0 SdLazy, 4 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 211 HoareAnnotationTreeSize, 3 FomulaSimplifications, 74 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 572 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...