./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrcspn_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e1f6774d-c201-4352-99c2-e8ce4e233732/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e1f6774d-c201-4352-99c2-e8ce4e233732/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e1f6774d-c201-4352-99c2-e8ce4e233732/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e1f6774d-c201-4352-99c2-e8ce4e233732/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrcspn_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e1f6774d-c201-4352-99c2-e8ce4e233732/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e1f6774d-c201-4352-99c2-e8ce4e233732/bin-2019/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 64bit --witnessprinter.graph.data.programhash f39f60c3148e6a8957b92a35d12d506fd8229368 .................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 13:36:40,619 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:36:40,620 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:36:40,630 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:36:40,631 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:36:40,631 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:36:40,633 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:36:40,634 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:36:40,635 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:36:40,636 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:36:40,637 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:36:40,637 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:36:40,638 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:36:40,638 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:36:40,639 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:36:40,640 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:36:40,641 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:36:40,642 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:36:40,644 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:36:40,645 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:36:40,646 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:36:40,647 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:36:40,649 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:36:40,649 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:36:40,649 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:36:40,650 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:36:40,651 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:36:40,652 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:36:40,652 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:36:40,653 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:36:40,653 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:36:40,654 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:36:40,654 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:36:40,654 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:36:40,655 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:36:40,656 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:36:40,657 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e1f6774d-c201-4352-99c2-e8ce4e233732/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-18 13:36:40,668 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:36:40,668 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:36:40,669 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:36:40,669 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:36:40,669 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:36:40,670 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:36:40,670 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:36:40,670 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 13:36:40,670 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:36:40,670 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:36:40,670 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 13:36:40,671 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 13:36:40,671 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:36:40,671 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:36:40,672 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 13:36:40,673 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:36:40,673 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:36:40,673 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:36:40,674 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:36:40,674 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:36:40,674 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 13:36:40,674 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:36:40,674 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:36:40,674 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:36:40,675 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:36:40,675 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:36:40,675 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:36:40,675 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:36:40,675 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:36:40,676 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:36:40,676 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:36:40,676 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:36:40,676 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 13:36:40,676 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:36:40,676 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:36:40,676 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 13:36:40,677 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_e1f6774d-c201-4352-99c2-e8ce4e233732/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 ! 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f39f60c3148e6a8957b92a35d12d506fd8229368 [2018-11-18 13:36:40,704 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:36:40,715 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:36:40,718 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:36:40,719 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:36:40,720 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:36:40,720 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e1f6774d-c201-4352-99c2-e8ce4e233732/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/cstrcspn_true-termination_true-no-overflow.c [2018-11-18 13:36:40,770 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e1f6774d-c201-4352-99c2-e8ce4e233732/bin-2019/utaipan/data/4dfdc4f66/590fb26177964f2caa9e1f502d1be830/FLAGff3a2175d [2018-11-18 13:36:41,102 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:36:41,102 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e1f6774d-c201-4352-99c2-e8ce4e233732/sv-benchmarks/c/termination-crafted-lit/cstrcspn_true-termination_true-no-overflow.c [2018-11-18 13:36:41,108 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e1f6774d-c201-4352-99c2-e8ce4e233732/bin-2019/utaipan/data/4dfdc4f66/590fb26177964f2caa9e1f502d1be830/FLAGff3a2175d [2018-11-18 13:36:41,531 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e1f6774d-c201-4352-99c2-e8ce4e233732/bin-2019/utaipan/data/4dfdc4f66/590fb26177964f2caa9e1f502d1be830 [2018-11-18 13:36:41,534 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:36:41,535 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:36:41,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:36:41,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:36:41,539 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:36:41,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:36:41" (1/1) ... [2018-11-18 13:36:41,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d39016a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:36:41, skipping insertion in model container [2018-11-18 13:36:41,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:36:41" (1/1) ... [2018-11-18 13:36:41,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:36:41,563 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:36:41,677 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:36:41,684 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:36:41,696 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:36:41,706 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:36:41,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:36:41 WrapperNode [2018-11-18 13:36:41,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:36:41,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:36:41,707 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:36:41,707 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:36:41,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:36:41" (1/1) ... [2018-11-18 13:36:41,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:36:41" (1/1) ... [2018-11-18 13:36:41,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:36:41,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:36:41,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:36:41,731 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:36:41,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:36:41" (1/1) ... [2018-11-18 13:36:41,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:36:41" (1/1) ... [2018-11-18 13:36:41,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:36:41" (1/1) ... [2018-11-18 13:36:41,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:36:41" (1/1) ... [2018-11-18 13:36:41,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:36:41" (1/1) ... [2018-11-18 13:36:41,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:36:41" (1/1) ... [2018-11-18 13:36:41,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:36:41" (1/1) ... [2018-11-18 13:36:41,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:36:41,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:36:41,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:36:41,759 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:36:41,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:36:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e1f6774d-c201-4352-99c2-e8ce4e233732/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 [2018-11-18 13:36:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 13:36:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure build_nondet_String [2018-11-18 13:36:41,848 INFO L138 BoogieDeclarations]: Found implementation of procedure build_nondet_String [2018-11-18 13:36:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:36:41,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:36:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure cstrcspn [2018-11-18 13:36:41,849 INFO L138 BoogieDeclarations]: Found implementation of procedure cstrcspn [2018-11-18 13:36:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 13:36:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:36:41,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:36:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 13:36:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:36:41,850 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:36:42,051 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:36:42,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:36:42 BoogieIcfgContainer [2018-11-18 13:36:42,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:36:42,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:36:42,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:36:42,055 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:36:42,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:36:41" (1/3) ... [2018-11-18 13:36:42,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a3e305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:36:42, skipping insertion in model container [2018-11-18 13:36:42,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:36:41" (2/3) ... [2018-11-18 13:36:42,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a3e305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:36:42, skipping insertion in model container [2018-11-18 13:36:42,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:36:42" (3/3) ... [2018-11-18 13:36:42,059 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrcspn_true-termination_true-no-overflow.c [2018-11-18 13:36:42,067 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:36:42,075 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-18 13:36:42,092 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-18 13:36:42,124 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:36:42,124 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:36:42,124 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:36:42,124 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:36:42,124 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:36:42,124 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:36:42,125 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:36:42,125 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:36:42,143 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-11-18 13:36:42,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 13:36:42,148 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:36:42,149 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:36:42,151 INFO L423 AbstractCegarLoop]: === Iteration 1 === [build_nondet_StringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, build_nondet_StringErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, build_nondet_StringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, build_nondet_StringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 13:36:42,157 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:36:42,157 INFO L82 PathProgramCache]: Analyzing trace with hash -779274783, now seen corresponding path program 1 times [2018-11-18 13:36:42,159 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:36:42,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:36:42,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:36:42,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:36:42,206 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:36:42,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:36:42,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:36:42,307 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:36:42,308 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 13:36:42,308 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:36:42,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:36:42,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:36:42,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:36:42,328 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 3 states. [2018-11-18 13:36:42,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:36:42,390 INFO L93 Difference]: Finished difference Result 63 states and 78 transitions. [2018-11-18 13:36:42,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:36:42,391 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-18 13:36:42,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:36:42,402 INFO L225 Difference]: With dead ends: 63 [2018-11-18 13:36:42,402 INFO L226 Difference]: Without dead ends: 25 [2018-11-18 13:36:42,405 INFO L604 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 [2018-11-18 13:36:42,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-18 13:36:42,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 22. [2018-11-18 13:36:42,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-18 13:36:42,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2018-11-18 13:36:42,436 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 9 [2018-11-18 13:36:42,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:36:42,437 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2018-11-18 13:36:42,437 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:36:42,437 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-11-18 13:36:42,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 13:36:42,438 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:36:42,438 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:36:42,438 INFO L423 AbstractCegarLoop]: === Iteration 2 === [build_nondet_StringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, build_nondet_StringErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, build_nondet_StringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, build_nondet_StringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 13:36:42,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:36:42,438 INFO L82 PathProgramCache]: Analyzing trace with hash -779274721, now seen corresponding path program 1 times [2018-11-18 13:36:42,439 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:36:42,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:36:42,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:36:42,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:36:42,440 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:36:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:36:42,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:36:42,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:36:42,463 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 13:36:42,463 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:36:42,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:36:42,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:36:42,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:36:42,465 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 3 states. [2018-11-18 13:36:42,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:36:42,491 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2018-11-18 13:36:42,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:36:42,492 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-18 13:36:42,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:36:42,493 INFO L225 Difference]: With dead ends: 22 [2018-11-18 13:36:42,493 INFO L226 Difference]: Without dead ends: 20 [2018-11-18 13:36:42,494 INFO L604 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 [2018-11-18 13:36:42,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-18 13:36:42,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2018-11-18 13:36:42,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-18 13:36:42,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-11-18 13:36:42,497 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 9 [2018-11-18 13:36:42,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:36:42,497 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-11-18 13:36:42,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:36:42,497 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-11-18 13:36:42,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 13:36:42,497 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:36:42,498 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:36:42,498 INFO L423 AbstractCegarLoop]: === Iteration 3 === [build_nondet_StringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, build_nondet_StringErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, build_nondet_StringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, build_nondet_StringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 13:36:42,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:36:42,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1612285543, now seen corresponding path program 1 times [2018-11-18 13:36:42,498 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:36:42,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:36:42,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:36:42,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:36:42,499 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:36:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:36:42,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:36:42,525 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:36:42,526 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 13:36:42,526 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:36:42,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:36:42,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:36:42,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:36:42,527 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 3 states. [2018-11-18 13:36:42,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:36:42,538 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2018-11-18 13:36:42,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:36:42,538 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 13:36:42,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:36:42,539 INFO L225 Difference]: With dead ends: 17 [2018-11-18 13:36:42,539 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 13:36:42,539 INFO L604 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 [2018-11-18 13:36:42,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 13:36:42,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 13:36:42,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 13:36:42,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 13:36:42,540 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-11-18 13:36:42,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:36:42,540 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:36:42,541 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:36:42,541 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 13:36:42,541 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:36:42,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 13:36:42,569 INFO L425 ceAbstractionStarter]: For program point build_nondet_StringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2018-11-18 13:36:42,570 INFO L425 ceAbstractionStarter]: For program point build_nondet_StringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2018-11-18 13:36:42,570 INFO L425 ceAbstractionStarter]: For program point build_nondet_StringFINAL(lines 12 20) no Hoare annotation was computed. [2018-11-18 13:36:42,570 INFO L425 ceAbstractionStarter]: For program point build_nondet_StringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2018-11-18 13:36:42,570 INFO L425 ceAbstractionStarter]: For program point build_nondet_StringErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2018-11-18 13:36:42,570 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-18 13:36:42,570 INFO L425 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-11-18 13:36:42,570 INFO L425 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-11-18 13:36:42,571 INFO L425 ceAbstractionStarter]: For program point L14(lines 14 16) no Hoare annotation was computed. [2018-11-18 13:36:42,571 INFO L425 ceAbstractionStarter]: For program point L14-2(lines 14 16) no Hoare annotation was computed. [2018-11-18 13:36:42,572 INFO L428 ceAbstractionStarter]: At program point build_nondet_StringENTRY(lines 12 20) the Hoare annotation is: true [2018-11-18 13:36:42,572 INFO L425 ceAbstractionStarter]: For program point build_nondet_StringEXIT(lines 12 20) no Hoare annotation was computed. [2018-11-18 13:36:42,572 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:36:42,572 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:36:42,572 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:36:42,572 INFO L425 ceAbstractionStarter]: For program point cstrcspnEXIT(lines 25 39) no Hoare annotation was computed. [2018-11-18 13:36:42,572 INFO L425 ceAbstractionStarter]: For program point L33-1(lines 33 34) no Hoare annotation was computed. [2018-11-18 13:36:42,573 INFO L425 ceAbstractionStarter]: For program point L33-2(line 33) no Hoare annotation was computed. [2018-11-18 13:36:42,573 INFO L425 ceAbstractionStarter]: For program point L33-4(lines 33 34) no Hoare annotation was computed. [2018-11-18 13:36:42,573 INFO L428 ceAbstractionStarter]: At program point L33-6(lines 33 34) the Hoare annotation is: true [2018-11-18 13:36:42,573 INFO L425 ceAbstractionStarter]: For program point L33-7(lines 33 34) no Hoare annotation was computed. [2018-11-18 13:36:42,573 INFO L428 ceAbstractionStarter]: At program point cstrcspnENTRY(lines 25 39) the Hoare annotation is: true [2018-11-18 13:36:42,573 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 30 37) no Hoare annotation was computed. [2018-11-18 13:36:42,573 INFO L425 ceAbstractionStarter]: For program point cstrcspnFINAL(lines 25 39) no Hoare annotation was computed. [2018-11-18 13:36:42,573 INFO L425 ceAbstractionStarter]: For program point L30-3(lines 30 37) no Hoare annotation was computed. [2018-11-18 13:36:42,573 INFO L428 ceAbstractionStarter]: At program point L30-4(lines 30 37) the Hoare annotation is: true [2018-11-18 13:36:42,573 INFO L425 ceAbstractionStarter]: For program point L30-5(lines 30 37) no Hoare annotation was computed. [2018-11-18 13:36:42,573 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-11-18 13:36:42,574 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:36:42,574 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 13:36:42,574 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:36:42,574 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:36:42,574 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 41 43) the Hoare annotation is: true [2018-11-18 13:36:42,574 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 41 43) no Hoare annotation was computed. [2018-11-18 13:36:42,574 INFO L428 ceAbstractionStarter]: At program point L42(line 42) the Hoare annotation is: true [2018-11-18 13:36:42,574 INFO L428 ceAbstractionStarter]: At program point L42-1(line 42) the Hoare annotation is: true [2018-11-18 13:36:42,574 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 41 43) no Hoare annotation was computed. [2018-11-18 13:36:42,574 INFO L425 ceAbstractionStarter]: For program point L42-2(line 42) no Hoare annotation was computed. [2018-11-18 13:36:42,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:36:42 BoogieIcfgContainer [2018-11-18 13:36:42,580 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:36:42,580 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:36:42,581 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:36:42,581 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:36:42,581 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:36:42" (3/4) ... [2018-11-18 13:36:42,585 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:36:42,590 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure build_nondet_String [2018-11-18 13:36:42,590 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 13:36:42,590 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cstrcspn [2018-11-18 13:36:42,590 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 13:36:42,594 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-18 13:36:42,594 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 13:36:42,594 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 13:36:42,630 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e1f6774d-c201-4352-99c2-e8ce4e233732/bin-2019/utaipan/witness.graphml [2018-11-18 13:36:42,631 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:36:42,631 INFO L168 Benchmark]: Toolchain (without parser) took 1096.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 953.1 MB in the beginning and 1.1 GB in the end (delta: -122.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:36:42,632 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:36:42,632 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.02 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 942.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:36:42,633 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.90 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:36:42,633 INFO L168 Benchmark]: Boogie Preprocessor took 27.69 ms. Allocated memory is still 1.0 GB. Free memory is still 939.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:36:42,633 INFO L168 Benchmark]: RCFGBuilder took 292.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -178.2 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2018-11-18 13:36:42,634 INFO L168 Benchmark]: TraceAbstraction took 527.86 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: 36.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 11.5 GB. [2018-11-18 13:36:42,634 INFO L168 Benchmark]: Witness Printer took 50.27 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: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 11.5 GB. [2018-11-18 13:36:42,636 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 171.02 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 942.4 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 23.90 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.69 ms. Allocated memory is still 1.0 GB. Free memory is still 939.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 292.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -178.2 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 527.86 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: 36.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 11.5 GB. * Witness Printer took 50.27 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: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 4 error locations. SAFE Result, 0.4s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 59 SDtfs, 18 SDslu, 48 SDs, 0 SdLazy, 27 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 11 PreInvPairs, 13 NumberOfFragments, 10 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 293 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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...