./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_b5_o10-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_daad4b2a-726d-48f0-b536-b232fc6b2b7c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_daad4b2a-726d-48f0-b536-b232fc6b2b7c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_daad4b2a-726d-48f0-b536-b232fc6b2b7c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_daad4b2a-726d-48f0-b536-b232fc6b2b7c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b5_o10-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_daad4b2a-726d-48f0-b536-b232fc6b2b7c/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_daad4b2a-726d-48f0-b536-b232fc6b2b7c/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0449565d36be00deee168302da89fb227fc941e3 ..................................................................................................................................................................................................................................................................................................................................................................... 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 02:58:52,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:58:52,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:58:52,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:58:52,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:58:52,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:58:52,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:58:52,369 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:58:52,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:58:52,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:58:52,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:58:52,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:58:52,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:58:52,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:58:52,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:58:52,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:58:52,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:58:52,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:58:52,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:58:52,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:58:52,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:58:52,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:58:52,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:58:52,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:58:52,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:58:52,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:58:52,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:58:52,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:58:52,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:58:52,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:58:52,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:58:52,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:58:52,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:58:52,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:58:52,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:58:52,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:58:52,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:58:52,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:58:52,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:58:52,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:58:52,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:58:52,412 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_daad4b2a-726d-48f0-b536-b232fc6b2b7c/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2019-11-26 02:58:52,437 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:58:52,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:58:52,448 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:58:52,448 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:58:52,448 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:58:52,448 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:58:52,449 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:58:52,449 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:58:52,449 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:58:52,449 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:58:52,449 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:58:52,450 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:58:52,450 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:58:52,450 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:58:52,450 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:58:52,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:58:52,451 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:58:52,452 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 02:58:52,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:58:52,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:58:52,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:58:52,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:58:52,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:58:52,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:58:52,453 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-26 02:58:52,453 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:58:52,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:58:52,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:58:52,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:58:52,455 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:58:52,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:58:52,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:58:52,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:58:52,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:58:52,456 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:58:52,456 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:58:52,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:58:52,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:58:52,458 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:58:52,458 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_daad4b2a-726d-48f0-b536-b232fc6b2b7c/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 ! overflow) ) 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 -> 0449565d36be00deee168302da89fb227fc941e3 [2019-11-26 02:58:52,599 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:58:52,609 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:58:52,612 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:58:52,614 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:58:52,614 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:58:52,614 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_daad4b2a-726d-48f0-b536-b232fc6b2b7c/bin/utaipan/../../sv-benchmarks/c/recursive-simple/id_b5_o10-2.c [2019-11-26 02:58:52,674 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_daad4b2a-726d-48f0-b536-b232fc6b2b7c/bin/utaipan/data/85f61f023/ea6cf5b132414cf9a80e0a415570b7c5/FLAGda3eb8dda [2019-11-26 02:58:53,070 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:58:53,071 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_daad4b2a-726d-48f0-b536-b232fc6b2b7c/sv-benchmarks/c/recursive-simple/id_b5_o10-2.c [2019-11-26 02:58:53,077 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_daad4b2a-726d-48f0-b536-b232fc6b2b7c/bin/utaipan/data/85f61f023/ea6cf5b132414cf9a80e0a415570b7c5/FLAGda3eb8dda [2019-11-26 02:58:53,092 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_daad4b2a-726d-48f0-b536-b232fc6b2b7c/bin/utaipan/data/85f61f023/ea6cf5b132414cf9a80e0a415570b7c5 [2019-11-26 02:58:53,095 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:58:53,102 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:58:53,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:58:53,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:58:53,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:58:53,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:58:53" (1/1) ... [2019-11-26 02:58:53,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f6837a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:53, skipping insertion in model container [2019-11-26 02:58:53,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:58:53" (1/1) ... [2019-11-26 02:58:53,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:58:53,137 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:58:53,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:58:53,348 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:58:53,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:58:53,375 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:58:53,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:53 WrapperNode [2019-11-26 02:58:53,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:58:53,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:58:53,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:58:53,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:58:53,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:53" (1/1) ... [2019-11-26 02:58:53,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:53" (1/1) ... [2019-11-26 02:58:53,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:58:53,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:58:53,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:58:53,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:58:53,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:53" (1/1) ... [2019-11-26 02:58:53,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:53" (1/1) ... [2019-11-26 02:58:53,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:53" (1/1) ... [2019-11-26 02:58:53,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:53" (1/1) ... [2019-11-26 02:58:53,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:53" (1/1) ... [2019-11-26 02:58:53,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:53" (1/1) ... [2019-11-26 02:58:53,417 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:53" (1/1) ... [2019-11-26 02:58:53,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:58:53,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:58:53,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:58:53,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:58:53,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_daad4b2a-726d-48f0-b536-b232fc6b2b7c/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 02:58:53,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:58:53,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:58:53,470 INFO L130 BoogieDeclarations]: Found specification of procedure id [2019-11-26 02:58:53,470 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2019-11-26 02:58:53,747 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:58:53,747 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:58:53,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:58:53 BoogieIcfgContainer [2019-11-26 02:58:53,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:58:53,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:58:53,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:58:53,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:58:53,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:58:53" (1/3) ... [2019-11-26 02:58:53,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca70b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:58:53, skipping insertion in model container [2019-11-26 02:58:53,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:53" (2/3) ... [2019-11-26 02:58:53,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca70b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:58:53, skipping insertion in model container [2019-11-26 02:58:53,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:58:53" (3/3) ... [2019-11-26 02:58:53,756 INFO L109 eAbstractionObserver]: Analyzing ICFG id_b5_o10-2.c [2019-11-26 02:58:53,766 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:58:53,773 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-26 02:58:53,784 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-26 02:58:53,816 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:58:53,816 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:58:53,816 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:58:53,816 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:58:53,817 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:58:53,817 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:58:53,817 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:58:53,817 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:58:53,837 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-26 02:58:53,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-26 02:58:53,843 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:58:53,844 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:58:53,844 INFO L410 AbstractCegarLoop]: === Iteration 1 === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:58:53,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:58:53,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1152815386, now seen corresponding path program 1 times [2019-11-26 02:58:53,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:58:53,860 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957258504] [2019-11-26 02:58:53,860 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:58:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:58:54,069 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-26 02:58:54,070 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957258504] [2019-11-26 02:58:54,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:58:54,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:58:54,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896382034] [2019-11-26 02:58:54,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:58:54,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:58:54,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:58:54,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:58:54,098 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 5 states. [2019-11-26 02:58:54,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:58:54,225 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2019-11-26 02:58:54,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:58:54,227 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-11-26 02:58:54,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:58:54,236 INFO L225 Difference]: With dead ends: 20 [2019-11-26 02:58:54,236 INFO L226 Difference]: Without dead ends: 17 [2019-11-26 02:58:54,239 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:58:54,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-26 02:58:54,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-26 02:58:54,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-26 02:58:54,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2019-11-26 02:58:54,279 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 14 [2019-11-26 02:58:54,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:58:54,280 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2019-11-26 02:58:54,280 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:58:54,280 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2019-11-26 02:58:54,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-26 02:58:54,281 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:58:54,281 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:58:54,281 INFO L410 AbstractCegarLoop]: === Iteration 2 === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:58:54,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:58:54,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1377538544, now seen corresponding path program 1 times [2019-11-26 02:58:54,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:58:54,283 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331702758] [2019-11-26 02:58:54,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:58:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:58:54,344 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-26 02:58:54,344 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331702758] [2019-11-26 02:58:54,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:58:54,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:58:54,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033847795] [2019-11-26 02:58:54,346 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:58:54,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:58:54,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:58:54,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:58:54,347 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2019-11-26 02:58:54,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:58:54,385 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2019-11-26 02:58:54,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:58:54,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-11-26 02:58:54,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:58:54,386 INFO L225 Difference]: With dead ends: 16 [2019-11-26 02:58:54,386 INFO L226 Difference]: Without dead ends: 15 [2019-11-26 02:58:54,387 INFO L630 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 [2019-11-26 02:58:54,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-26 02:58:54,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-26 02:58:54,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-26 02:58:54,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-11-26 02:58:54,390 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 15 [2019-11-26 02:58:54,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:58:54,391 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-11-26 02:58:54,391 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:58:54,391 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-11-26 02:58:54,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-26 02:58:54,392 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:58:54,392 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2019-11-26 02:58:54,392 INFO L410 AbstractCegarLoop]: === Iteration 3 === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:58:54,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:58:54,393 INFO L82 PathProgramCache]: Analyzing trace with hash 733076547, now seen corresponding path program 1 times [2019-11-26 02:58:54,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:58:54,394 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469255237] [2019-11-26 02:58:54,394 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:58:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:58:54,504 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-26 02:58:54,505 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469255237] [2019-11-26 02:58:54,505 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848203684] [2019-11-26 02:58:54,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_daad4b2a-726d-48f0-b536-b232fc6b2b7c/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:58:54,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:58:54,581 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-26 02:58:54,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:58:54,637 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:58:54,674 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-26 02:58:54,674 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:58:54,826 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:58:54,855 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-26 02:58:54,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-26 02:58:54,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 5] total 11 [2019-11-26 02:58:54,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337043434] [2019-11-26 02:58:54,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:58:54,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:58:54,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:58:54,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-11-26 02:58:54,858 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 4 states. [2019-11-26 02:58:54,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:58:54,875 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2019-11-26 02:58:54,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:58:54,876 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-11-26 02:58:54,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:58:54,876 INFO L225 Difference]: With dead ends: 15 [2019-11-26 02:58:54,876 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:58:54,878 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-11-26 02:58:54,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:58:54,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:58:54,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:58:54,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:58:54,879 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-11-26 02:58:54,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:58:54,879 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:58:54,879 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:58:54,880 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:58:54,880 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:58:55,083 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:58:55,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:58:55,107 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:58:55,108 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:58:55,108 INFO L447 ceAbstractionStarter]: At program point L13(line 13) the Hoare annotation is: true [2019-11-26 02:58:55,108 INFO L444 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2019-11-26 02:58:55,108 INFO L444 ceAbstractionStarter]: For program point idFINAL(lines 4 9) no Hoare annotation was computed. [2019-11-26 02:58:55,108 INFO L444 ceAbstractionStarter]: For program point idEXIT(lines 4 9) no Hoare annotation was computed. [2019-11-26 02:58:55,108 INFO L447 ceAbstractionStarter]: At program point idENTRY(lines 4 9) the Hoare annotation is: true [2019-11-26 02:58:55,109 INFO L444 ceAbstractionStarter]: For program point idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 6) no Hoare annotation was computed. [2019-11-26 02:58:55,109 INFO L444 ceAbstractionStarter]: For program point idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 6) no Hoare annotation was computed. [2019-11-26 02:58:55,109 INFO L440 ceAbstractionStarter]: At program point L6(line 6) the Hoare annotation is: (= |id_#in~x| id_~x) [2019-11-26 02:58:55,109 INFO L444 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-26 02:58:55,109 INFO L444 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2019-11-26 02:58:55,109 INFO L444 ceAbstractionStarter]: For program point L6-2(line 6) no Hoare annotation was computed. [2019-11-26 02:58:55,109 INFO L444 ceAbstractionStarter]: For program point L6-3(line 6) no Hoare annotation was computed. [2019-11-26 02:58:55,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:58:55 BoogieIcfgContainer [2019-11-26 02:58:55,113 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:58:55,113 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:58:55,114 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:58:55,114 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:58:55,114 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:58:53" (3/4) ... [2019-11-26 02:58:55,126 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:58:55,132 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2019-11-26 02:58:55,137 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-11-26 02:58:55,137 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:58:55,137 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:58:55,192 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_daad4b2a-726d-48f0-b536-b232fc6b2b7c/bin/utaipan/witness.graphml [2019-11-26 02:58:55,192 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:58:55,194 INFO L168 Benchmark]: Toolchain (without parser) took 2091.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 189.8 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -133.9 MB). Peak memory consumption was 55.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:58:55,195 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:58:55,195 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 189.8 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -241.3 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:58:55,196 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:58:55,196 INFO L168 Benchmark]: Boogie Preprocessor took 15.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:58:55,197 INFO L168 Benchmark]: RCFGBuilder took 329.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:58:55,198 INFO L168 Benchmark]: TraceAbstraction took 1363.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 75.7 MB). Peak memory consumption was 75.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:58:55,202 INFO L168 Benchmark]: Witness Printer took 78.86 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. [2019-11-26 02:58:55,204 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 270.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 189.8 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -241.3 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 329.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1363.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 75.7 MB). Peak memory consumption was 75.7 MB. Max. memory is 11.5 GB. * Witness Printer took 78.86 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: 6]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 2 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 16 SDslu, 32 SDs, 0 SdLazy, 40 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 5 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 2655 SizeOfPredicates, 1 NumberOfNonLiveVariables, 46 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 39/47 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...