./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e20bf2c2-b79b-440e-bbb0-738c653b822e/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e20bf2c2-b79b-440e-bbb0-738c653b822e/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e20bf2c2-b79b-440e-bbb0-738c653b822e/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e20bf2c2-b79b-440e-bbb0-738c653b822e/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e20bf2c2-b79b-440e-bbb0-738c653b822e/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e20bf2c2-b79b-440e-bbb0-738c653b822e/bin-2019/ukojak --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 31d0c4253184c01eb9f9573658b07bed7aa94585 ............................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 05:16:30,681 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:16:30,685 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:16:30,695 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:16:30,695 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:16:30,696 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:16:30,697 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:16:30,698 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:16:30,700 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:16:30,701 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:16:30,702 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:16:30,702 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:16:30,703 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:16:30,704 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:16:30,705 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:16:30,706 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:16:30,707 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:16:30,709 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:16:30,711 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:16:30,712 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:16:30,713 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:16:30,714 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:16:30,717 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:16:30,717 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:16:30,718 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:16:30,718 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:16:30,720 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:16:30,726 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:16:30,727 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:16:30,728 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:16:30,729 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:16:30,729 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 05:16:30,729 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 05:16:30,730 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 05:16:30,731 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 05:16:30,736 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 05:16:30,736 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e20bf2c2-b79b-440e-bbb0-738c653b822e/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-10-27 05:16:30,759 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:16:30,764 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:16:30,765 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:16:30,765 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-27 05:16:30,766 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 05:16:30,766 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 05:16:30,766 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:16:30,766 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 05:16:30,766 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 05:16:30,767 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:16:30,767 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:16:30,767 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:16:30,767 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:16:30,770 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-10-27 05:16:30,770 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:16:30,770 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:16:30,770 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-27 05:16:30,771 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-27 05:16:30,771 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:16:30,771 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:16:30,771 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-27 05:16:30,771 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:16:30,772 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:16:30,772 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:16:30,772 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-27 05:16:30,772 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:16:30,772 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 05:16:30,772 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_e20bf2c2-b79b-440e-bbb0-738c653b822e/bin-2019/ukojak 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 -> Kojak 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 -> 31d0c4253184c01eb9f9573658b07bed7aa94585 [2018-10-27 05:16:30,828 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:16:30,845 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:16:30,849 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:16:30,851 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:16:30,851 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:16:30,852 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e20bf2c2-b79b-440e-bbb0-738c653b822e/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2_true-termination_true-no-overflow.c [2018-10-27 05:16:30,908 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e20bf2c2-b79b-440e-bbb0-738c653b822e/bin-2019/ukojak/data/b6aa92754/0de11f2a5565460d83cfe8cfcfa42316/FLAG8e2f03890 [2018-10-27 05:16:31,287 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:16:31,288 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e20bf2c2-b79b-440e-bbb0-738c653b822e/sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2_true-termination_true-no-overflow.c [2018-10-27 05:16:31,293 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e20bf2c2-b79b-440e-bbb0-738c653b822e/bin-2019/ukojak/data/b6aa92754/0de11f2a5565460d83cfe8cfcfa42316/FLAG8e2f03890 [2018-10-27 05:16:31,307 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e20bf2c2-b79b-440e-bbb0-738c653b822e/bin-2019/ukojak/data/b6aa92754/0de11f2a5565460d83cfe8cfcfa42316 [2018-10-27 05:16:31,310 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:16:31,312 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 05:16:31,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:16:31,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:16:31,316 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:16:31,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:16:31" (1/1) ... [2018-10-27 05:16:31,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24fdfe6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:31, skipping insertion in model container [2018-10-27 05:16:31,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:16:31" (1/1) ... [2018-10-27 05:16:31,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:16:31,347 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:16:31,509 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:16:31,512 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:16:31,529 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:16:31,545 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:16:31,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:31 WrapperNode [2018-10-27 05:16:31,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:16:31,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 05:16:31,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 05:16:31,546 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 05:16:31,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:31" (1/1) ... [2018-10-27 05:16:31,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:31" (1/1) ... [2018-10-27 05:16:31,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 05:16:31,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:16:31,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:16:31,582 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:16:31,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:31" (1/1) ... [2018-10-27 05:16:31,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:31" (1/1) ... [2018-10-27 05:16:31,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:31" (1/1) ... [2018-10-27 05:16:31,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:31" (1/1) ... [2018-10-27 05:16:31,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:31" (1/1) ... [2018-10-27 05:16:31,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:31" (1/1) ... [2018-10-27 05:16:31,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:31" (1/1) ... [2018-10-27 05:16:31,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:16:31,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:16:31,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:16:31,604 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:16:31,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e20bf2c2-b79b-440e-bbb0-738c653b822e/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2018-10-27 05:16:31,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:16:31,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:16:32,061 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:16:32,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:16:32 BoogieIcfgContainer [2018-10-27 05:16:32,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:16:32,062 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-27 05:16:32,062 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-27 05:16:32,073 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-27 05:16:32,074 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:16:32" (1/1) ... [2018-10-27 05:16:32,088 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:16:32,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:32,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2018-10-27 05:16:32,118 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2018-10-27 05:16:32,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-27 05:16:32,120 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:32,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:32,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:32,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 15 states and 16 transitions. [2018-10-27 05:16:32,223 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2018-10-27 05:16:32,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-27 05:16:32,223 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:32,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:32,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:32,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:32,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2018-10-27 05:16:32,353 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-10-27 05:16:32,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-27 05:16:32,354 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:32,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:32,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:32,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2018-10-27 05:16:32,510 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-10-27 05:16:32,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-27 05:16:32,514 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:32,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:32,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:32,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 22 states and 25 transitions. [2018-10-27 05:16:32,644 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2018-10-27 05:16:32,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:16:32,645 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:32,720 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:32,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:32,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 24 states and 27 transitions. [2018-10-27 05:16:32,961 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2018-10-27 05:16:32,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:16:32,961 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:32,993 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:33,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:33,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 20 states and 21 transitions. [2018-10-27 05:16:33,040 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2018-10-27 05:16:33,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 05:16:33,041 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:33,112 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-27 05:16:33,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:33,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 19 states and 20 transitions. [2018-10-27 05:16:33,255 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-10-27 05:16:33,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-27 05:16:33,256 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:33,316 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-10-27 05:16:33,565 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-27 05:16:34,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:34,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 18 states and 19 transitions. [2018-10-27 05:16:34,007 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-10-27 05:16:34,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-27 05:16:34,007 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:34,050 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-10-27 05:16:34,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:34,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 17 states and 18 transitions. [2018-10-27 05:16:34,741 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-10-27 05:16:34,741 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 05:16:34,741 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2018-10-27 05:16:34,751 INFO L778 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2018-10-27 05:16:34,911 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-27 05:16:34,913 INFO L582 CodeCheckObserver]: Invariant with dag size 5 [2018-10-27 05:16:34,918 INFO L582 CodeCheckObserver]: Invariant with dag size 10 [2018-10-27 05:16:34,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 27.10 05:16:34 ImpRootNode [2018-10-27 05:16:34,920 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-27 05:16:34,920 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 05:16:34,921 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 05:16:34,921 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 05:16:34,921 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:16:32" (3/4) ... [2018-10-27 05:16:34,926 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 05:16:34,937 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-10-27 05:16:34,938 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-27 05:16:34,938 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-27 05:16:34,984 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e20bf2c2-b79b-440e-bbb0-738c653b822e/bin-2019/ukojak/witness.graphml [2018-10-27 05:16:34,984 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 05:16:34,985 INFO L168 Benchmark]: Toolchain (without parser) took 3674.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 958.5 MB in the beginning and 940.0 MB in the end (delta: 18.5 MB). Peak memory consumption was 166.8 MB. Max. memory is 11.5 GB. [2018-10-27 05:16:34,986 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:16:34,986 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.14 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-10-27 05:16:34,987 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.41 ms. Allocated memory is still 1.0 GB. Free memory is still 947.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:16:34,989 INFO L168 Benchmark]: Boogie Preprocessor took 21.61 ms. Allocated memory is still 1.0 GB. Free memory was 947.6 MB in the beginning and 944.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:16:34,989 INFO L168 Benchmark]: RCFGBuilder took 457.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 944.9 MB in the beginning and 1.1 GB in the end (delta: -186.6 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2018-10-27 05:16:34,990 INFO L168 Benchmark]: CodeCheck took 2858.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 943.5 MB in the end (delta: 188.1 MB). Peak memory consumption was 188.1 MB. Max. memory is 11.5 GB. [2018-10-27 05:16:34,991 INFO L168 Benchmark]: Witness Printer took 63.75 ms. Allocated memory is still 1.2 GB. Free memory was 943.5 MB in the beginning and 940.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-10-27 05:16:34,995 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 18 locations, 4 error locations. SAFE Result, 2.6s OverallTime, 10 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3076 SDtfs, 1714 SDslu, 1228 SDs, 0 SdLazy, 4286 SolverSat, 1160 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 639 GetRequests, 574 SyntacticMatches, 13 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1088 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 2171 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 23/25 InterpolantCoveringCapability, 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: 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: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 <= x1 + 2147483648 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (x1 <= 10 && 0 <= x1 + 2147483648) && x2 <= 10 * 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 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 233.14 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.41 ms. Allocated memory is still 1.0 GB. Free memory is still 947.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.61 ms. Allocated memory is still 1.0 GB. Free memory was 947.6 MB in the beginning and 944.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 457.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 944.9 MB in the beginning and 1.1 GB in the end (delta: -186.6 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * CodeCheck took 2858.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 943.5 MB in the end (delta: 188.1 MB). Peak memory consumption was 188.1 MB. Max. memory is 11.5 GB. * Witness Printer took 63.75 ms. Allocated memory is still 1.2 GB. Free memory was 943.5 MB in the beginning and 940.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...