./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/array-tiling/poly1_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6e79a1db-e600-49e8-b317-a705d9b35d56/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6e79a1db-e600-49e8-b317-a705d9b35d56/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6e79a1db-e600-49e8-b317-a705d9b35d56/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6e79a1db-e600-49e8-b317-a705d9b35d56/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-tiling/poly1_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6e79a1db-e600-49e8-b317-a705d9b35d56/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6e79a1db-e600-49e8-b317-a705d9b35d56/bin-2019/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 1241ae524282753aa89442a13aca7e8577691a01 ......................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:44:41,632 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:44:41,634 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:44:41,644 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:44:41,645 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:44:41,646 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:44:41,647 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:44:41,648 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:44:41,649 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:44:41,650 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:44:41,650 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:44:41,650 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:44:41,651 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:44:41,655 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:44:41,656 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:44:41,657 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:44:41,657 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:44:41,659 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:44:41,660 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:44:41,662 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:44:41,662 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:44:41,663 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:44:41,665 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:44:41,666 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:44:41,666 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:44:41,667 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:44:41,668 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:44:41,668 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:44:41,669 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:44:41,670 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:44:41,670 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:44:41,671 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:44:41,671 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:44:41,671 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:44:41,672 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:44:41,673 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:44:41,673 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6e79a1db-e600-49e8-b317-a705d9b35d56/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 23:44:41,684 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:44:41,684 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:44:41,685 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:44:41,685 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 23:44:41,685 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 23:44:41,685 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 23:44:41,685 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 23:44:41,686 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 23:44:41,686 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 23:44:41,686 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 23:44:41,686 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 23:44:41,687 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:44:41,687 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:44:41,687 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:44:41,687 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:44:41,687 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:44:41,687 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:44:41,689 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:44:41,689 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:44:41,689 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:44:41,689 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:44:41,689 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:44:41,690 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:44:41,690 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:44:41,690 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:44:41,690 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:44:41,690 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:44:41,690 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:44:41,690 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:44:41,691 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:44:41,691 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 23:44:41,691 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:44:41,691 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:44:41,691 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 23:44:41,691 INFO L133 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_6e79a1db-e600-49e8-b317-a705d9b35d56/bin-2019/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 -> 1241ae524282753aa89442a13aca7e8577691a01 [2018-10-26 23:44:41,725 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:44:41,735 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:44:41,741 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:44:41,743 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:44:41,743 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:44:41,744 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6e79a1db-e600-49e8-b317-a705d9b35d56/bin-2019/utaipan/../../sv-benchmarks/c/array-tiling/poly1_true-unreach-call.i [2018-10-26 23:44:41,794 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6e79a1db-e600-49e8-b317-a705d9b35d56/bin-2019/utaipan/data/1fca12f93/765a7db5e5ed42aaba0fa5a896844871/FLAG8e19acee8 [2018-10-26 23:44:42,163 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:44:42,164 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6e79a1db-e600-49e8-b317-a705d9b35d56/sv-benchmarks/c/array-tiling/poly1_true-unreach-call.i [2018-10-26 23:44:42,169 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6e79a1db-e600-49e8-b317-a705d9b35d56/bin-2019/utaipan/data/1fca12f93/765a7db5e5ed42aaba0fa5a896844871/FLAG8e19acee8 [2018-10-26 23:44:42,181 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6e79a1db-e600-49e8-b317-a705d9b35d56/bin-2019/utaipan/data/1fca12f93/765a7db5e5ed42aaba0fa5a896844871 [2018-10-26 23:44:42,183 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:44:42,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 23:44:42,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:44:42,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:44:42,188 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:44:42,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:44:42" (1/1) ... [2018-10-26 23:44:42,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a63995c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:44:42, skipping insertion in model container [2018-10-26 23:44:42,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:44:42" (1/1) ... [2018-10-26 23:44:42,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:44:42,216 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:44:42,331 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:44:42,334 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:44:42,347 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:44:42,361 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:44:42,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:44:42 WrapperNode [2018-10-26 23:44:42,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:44:42,362 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:44:42,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:44:42,362 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:44:42,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:44:42" (1/1) ... [2018-10-26 23:44:42,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:44:42" (1/1) ... [2018-10-26 23:44:42,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:44:42,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:44:42,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:44:42,394 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:44:42,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:44:42" (1/1) ... [2018-10-26 23:44:42,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:44:42" (1/1) ... [2018-10-26 23:44:42,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:44:42" (1/1) ... [2018-10-26 23:44:42,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:44:42" (1/1) ... [2018-10-26 23:44:42,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:44:42" (1/1) ... [2018-10-26 23:44:42,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:44:42" (1/1) ... [2018-10-26 23:44:42,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:44:42" (1/1) ... [2018-10-26 23:44:42,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:44:42,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:44:42,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:44:42,415 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:44:42,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:44:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6e79a1db-e600-49e8-b317-a705d9b35d56/bin-2019/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 [2018-10-26 23:44:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:44:42,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:44:42,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:44:42,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:44:42,532 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:44:42,532 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:44:42,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 23:44:42,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 23:44:42,928 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:44:42,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:44:42 BoogieIcfgContainer [2018-10-26 23:44:42,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:44:42,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:44:42,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:44:42,933 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:44:42,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:44:42" (1/3) ... [2018-10-26 23:44:42,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a957bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:44:42, skipping insertion in model container [2018-10-26 23:44:42,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:44:42" (2/3) ... [2018-10-26 23:44:42,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a957bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:44:42, skipping insertion in model container [2018-10-26 23:44:42,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:44:42" (3/3) ... [2018-10-26 23:44:42,937 INFO L112 eAbstractionObserver]: Analyzing ICFG poly1_true-unreach-call.i [2018-10-26 23:44:42,946 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:44:42,953 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:44:42,967 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:44:42,993 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:44:42,993 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:44:42,994 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:44:42,994 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:44:42,994 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:44:42,994 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:44:42,994 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:44:42,994 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:44:43,010 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-10-26 23:44:43,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-26 23:44:43,016 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:44:43,016 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:44:43,018 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:44:43,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:44:43,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1097786377, now seen corresponding path program 1 times [2018-10-26 23:44:43,026 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:44:43,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:44:43,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:44:43,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:44:43,069 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:44:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:44:43,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:44:43,142 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:44:43,142 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 23:44:43,142 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:44:43,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 23:44:43,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 23:44:43,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 23:44:43,160 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2018-10-26 23:44:43,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:44:43,178 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2018-10-26 23:44:43,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 23:44:43,179 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-10-26 23:44:43,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:44:43,186 INFO L225 Difference]: With dead ends: 46 [2018-10-26 23:44:43,187 INFO L226 Difference]: Without dead ends: 22 [2018-10-26 23:44:43,190 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 23:44:43,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-10-26 23:44:43,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-10-26 23:44:43,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-10-26 23:44:43,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2018-10-26 23:44:43,221 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 15 [2018-10-26 23:44:43,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:44:43,221 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2018-10-26 23:44:43,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 23:44:43,221 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2018-10-26 23:44:43,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-26 23:44:43,222 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:44:43,222 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:44:43,222 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:44:43,222 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:44:43,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1066530449, now seen corresponding path program 1 times [2018-10-26 23:44:43,222 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:44:43,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:44:43,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:44:43,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:44:43,225 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:44:43,241 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-26 23:44:43,241 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-26 23:44:43,241 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6e79a1db-e600-49e8-b317-a705d9b35d56/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-10-26 23:44:43,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:44:43,251 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-26 23:44:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:44:43,301 INFO L190 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-10-26 23:44:43,302 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-26 23:44:43,302 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:44:43,302 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6e79a1db-e600-49e8-b317-a705d9b35d56/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-10-26 23:44:43,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:44:43,312 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 23:44:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:44:43,355 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:44:43,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:44:43,415 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 23:44:43,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:44:43,485 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:44:43,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2018-10-26 23:44:43,485 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:44:43,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 23:44:43,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 23:44:43,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 23:44:43,487 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 3 states. [2018-10-26 23:44:43,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:44:43,608 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2018-10-26 23:44:43,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 23:44:43,612 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-10-26 23:44:43,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:44:43,613 INFO L225 Difference]: With dead ends: 37 [2018-10-26 23:44:43,613 INFO L226 Difference]: Without dead ends: 25 [2018-10-26 23:44:43,614 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 23:44:43,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-10-26 23:44:43,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2018-10-26 23:44:43,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-10-26 23:44:43,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2018-10-26 23:44:43,619 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 16 [2018-10-26 23:44:43,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:44:43,619 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2018-10-26 23:44:43,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 23:44:43,620 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2018-10-26 23:44:43,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 23:44:43,620 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:44:43,620 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:44:43,621 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:44:43,621 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:44:43,621 INFO L82 PathProgramCache]: Analyzing trace with hash 205897947, now seen corresponding path program 1 times [2018-10-26 23:44:43,621 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:44:43,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:44:43,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:44:43,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:44:43,622 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:44:43,633 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-26 23:44:43,633 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-26 23:44:43,633 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6e79a1db-e600-49e8-b317-a705d9b35d56/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-26 23:44:43,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:44:43,646 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-10-26 23:44:43,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:44:43,678 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-10-26 23:44:43,680 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [8], [12], [15], [17], [19], [23], [27], [32], [46], [49], [51], [57], [58], [59], [61] [2018-10-26 23:44:43,720 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 23:44:43,720 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 23:44:43,878 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-26 23:44:43,905 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 23:44:43,906 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Never found a fixpoint. Largest state had 32 variables. [2018-10-26 23:44:43,932 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:44:43,932 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 23:44:44,050 INFO L227 lantSequenceWeakener]: Weakened 10 states. On average, predicates are now at 85% of their original sizes. [2018-10-26 23:44:44,050 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 23:44:44,110 INFO L415 sIntCurrentIteration]: We unified 18 AI predicates to 18 [2018-10-26 23:44:44,110 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 23:44:44,111 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:44:44,111 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 23:44:44,111 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:44:44,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 23:44:44,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 23:44:44,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 23:44:44,112 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 4 states. [2018-10-26 23:44:44,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:44:44,201 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2018-10-26 23:44:44,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 23:44:44,201 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-10-26 23:44:44,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:44:44,201 INFO L225 Difference]: With dead ends: 24 [2018-10-26 23:44:44,201 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 23:44:44,202 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 23:44:44,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 23:44:44,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 23:44:44,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 23:44:44,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 23:44:44,203 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-10-26 23:44:44,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:44:44,203 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 23:44:44,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 23:44:44,203 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 23:44:44,203 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 23:44:44,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 23:44:44,591 WARN L179 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 28 [2018-10-26 23:44:44,619 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 23:44:44,619 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 23:44:44,619 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 23:44:44,619 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 23:44:44,619 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (let ((.cse0 (* 2 ~SIZE~0))) (and (<= .cse0 4294967294) (<= 0 (+ .cse0 4294967296)))) [2018-10-26 23:44:44,619 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 23:44:44,620 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 23:44:44,620 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 30) no Hoare annotation was computed. [2018-10-26 23:44:44,620 INFO L425 ceAbstractionStarter]: For program point L13(lines 13 28) no Hoare annotation was computed. [2018-10-26 23:44:44,620 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 30) no Hoare annotation was computed. [2018-10-26 23:44:44,620 INFO L425 ceAbstractionStarter]: For program point L13-2(lines 13 28) no Hoare annotation was computed. [2018-10-26 23:44:44,620 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 10 30) the Hoare annotation is: (let ((.cse0 (* 2 |old(~SIZE~0)|))) (or (< (+ .cse0 4294967296) 0) (< 4294967294 .cse0) (let ((.cse1 (* 2 ~SIZE~0))) (and (<= .cse1 4294967294) (<= 0 (+ .cse1 4294967296)))))) [2018-10-26 23:44:44,620 INFO L421 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (let ((.cse0 (* 2 |old(~SIZE~0)|))) (or (< (+ .cse0 4294967296) 0) (< 4294967294 .cse0))) [2018-10-26 23:44:44,621 INFO L425 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2018-10-26 23:44:44,621 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 24 27) no Hoare annotation was computed. [2018-10-26 23:44:44,621 INFO L425 ceAbstractionStarter]: For program point L24-3(lines 24 27) no Hoare annotation was computed. [2018-10-26 23:44:44,621 INFO L421 ceAbstractionStarter]: At program point L24-4(lines 24 27) the Hoare annotation is: (let ((.cse0 (* 2 |old(~SIZE~0)|))) (or (< (+ .cse0 4294967296) 0) (< 4294967294 .cse0))) [2018-10-26 23:44:44,621 INFO L425 ceAbstractionStarter]: For program point L24-5(lines 24 27) no Hoare annotation was computed. [2018-10-26 23:44:44,621 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 18 21) no Hoare annotation was computed. [2018-10-26 23:44:44,621 INFO L425 ceAbstractionStarter]: For program point L18-3(lines 18 21) no Hoare annotation was computed. [2018-10-26 23:44:44,621 INFO L421 ceAbstractionStarter]: At program point L18-4(lines 18 21) the Hoare annotation is: (let ((.cse0 (* 2 |old(~SIZE~0)|))) (or (and (not (= |main_~#a~0.base| 0)) (<= ~SIZE~0 (+ main_~i~0 2147483647)) (<= main_~i~0 |main_~#a~0.offset|) (<= |main_~#a~0.offset| main_~i~0) (<= 4 (* 2 ~SIZE~0)) (= main_~i~0 0)) (< (+ .cse0 4294967296) 0) (< 4294967294 .cse0))) [2018-10-26 23:44:44,622 INFO L425 ceAbstractionStarter]: For program point L18-5(lines 18 21) no Hoare annotation was computed. [2018-10-26 23:44:44,622 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 5) the Hoare annotation is: true [2018-10-26 23:44:44,622 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-26 23:44:44,622 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 5) no Hoare annotation was computed. [2018-10-26 23:44:44,622 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-26 23:44:44,622 INFO L425 ceAbstractionStarter]: For program point L5-1(line 5) no Hoare annotation was computed. [2018-10-26 23:44:44,622 INFO L425 ceAbstractionStarter]: For program point L5-3(line 5) no Hoare annotation was computed. [2018-10-26 23:44:44,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:44:44 BoogieIcfgContainer [2018-10-26 23:44:44,632 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:44:44,632 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:44:44,632 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:44:44,632 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:44:44,633 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:44:42" (3/4) ... [2018-10-26 23:44:44,636 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 23:44:44,641 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 23:44:44,641 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 23:44:44,641 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-26 23:44:44,645 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-10-26 23:44:44,645 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-10-26 23:44:44,645 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-26 23:44:44,666 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(a == 0) && SIZE <= i + 2147483647) && i <= a) && a <= i) && 4 <= 2 * SIZE) && i == 0) || 2 * \old(SIZE) + 4294967296 < 0) || 4294967294 < 2 * \old(SIZE) [2018-10-26 23:44:44,666 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 2 * \old(SIZE) + 4294967296 < 0 || 4294967294 < 2 * \old(SIZE) [2018-10-26 23:44:44,679 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6e79a1db-e600-49e8-b317-a705d9b35d56/bin-2019/utaipan/witness.graphml [2018-10-26 23:44:44,679 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:44:44,680 INFO L168 Benchmark]: Toolchain (without parser) took 2496.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 954.5 MB in the beginning and 987.9 MB in the end (delta: -33.5 MB). Peak memory consumption was 93.4 MB. Max. memory is 11.5 GB. [2018-10-26 23:44:44,681 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:44:44,681 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.79 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:44:44,681 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.87 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:44:44,682 INFO L168 Benchmark]: Boogie Preprocessor took 20.75 ms. Allocated memory is still 1.0 GB. Free memory is still 941.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:44:44,682 INFO L168 Benchmark]: RCFGBuilder took 513.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2018-10-26 23:44:44,682 INFO L168 Benchmark]: TraceAbstraction took 1702.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.6 MB in the end (delta: 113.8 MB). Peak memory consumption was 113.8 MB. Max. memory is 11.5 GB. [2018-10-26 23:44:44,683 INFO L168 Benchmark]: Witness Printer took 47.26 ms. Allocated memory is still 1.2 GB. Free memory was 990.6 MB in the beginning and 987.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:44:44,685 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 176.79 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.87 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.75 ms. Allocated memory is still 1.0 GB. Free memory is still 941.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 513.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1702.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.6 MB in the end (delta: 113.8 MB). Peak memory consumption was 113.8 MB. Max. memory is 11.5 GB. * Witness Printer took 47.26 ms. Allocated memory is still 1.2 GB. Free memory was 990.6 MB in the beginning and 987.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 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: 18]: Loop Invariant Derived loop invariant: ((((((!(a == 0) && SIZE <= i + 2147483647) && i <= a) && a <= i) && 4 <= 2 * SIZE) && i == 0) || 2 * \old(SIZE) + 4294967296 < 0) || 4294967294 < 2 * \old(SIZE) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 2 * \old(SIZE) + 4294967296 < 0 || 4294967294 < 2 * \old(SIZE) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 1 error locations. SAFE Result, 1.6s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 58 SDtfs, 6 SDslu, 17 SDs, 0 SdLazy, 10 SolverSat, 1 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9618055555555556 AbsIntWeakeningRatio, 1.4444444444444444 AbsIntAvgWeakeningVarsNumRemoved, 54.72222222222222 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 10 PreInvPairs, 11 NumberOfFragments, 113 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 76 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 886 SizeOfPredicates, 3 NumberOfNonLiveVariables, 84 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...