./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrncmp_false-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_fb7b43a1-a4bb-465a-949f-4d0c584170de/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fb7b43a1-a4bb-465a-949f-4d0c584170de/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fb7b43a1-a4bb-465a-949f-4d0c584170de/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fb7b43a1-a4bb-465a-949f-4d0c584170de/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrncmp_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fb7b43a1-a4bb-465a-949f-4d0c584170de/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fb7b43a1-a4bb-465a-949f-4d0c584170de/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 01bf3c13fb8dbd0777aa4be7a3e595427bd1de37 ............................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 09:27:40,203 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 09:27:40,204 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 09:27:40,212 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 09:27:40,212 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 09:27:40,213 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 09:27:40,214 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 09:27:40,215 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 09:27:40,216 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 09:27:40,217 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 09:27:40,218 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 09:27:40,218 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 09:27:40,218 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 09:27:40,219 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 09:27:40,220 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 09:27:40,220 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 09:27:40,221 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 09:27:40,221 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 09:27:40,223 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 09:27:40,224 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 09:27:40,225 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 09:27:40,226 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 09:27:40,227 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 09:27:40,227 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 09:27:40,228 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 09:27:40,228 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 09:27:40,229 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 09:27:40,229 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 09:27:40,230 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 09:27:40,230 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 09:27:40,230 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 09:27:40,231 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 09:27:40,231 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 09:27:40,231 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 09:27:40,231 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 09:27:40,232 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 09:27:40,232 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fb7b43a1-a4bb-465a-949f-4d0c584170de/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-11-10 09:27:40,242 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 09:27:40,242 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 09:27:40,243 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 09:27:40,243 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 09:27:40,243 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 09:27:40,243 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 09:27:40,244 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 09:27:40,244 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 09:27:40,244 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 09:27:40,244 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 09:27:40,244 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 09:27:40,244 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 09:27:40,244 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 09:27:40,245 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 09:27:40,245 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 09:27:40,245 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 09:27:40,245 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 09:27:40,245 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 09:27:40,245 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 09:27:40,245 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 09:27:40,246 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 09:27:40,246 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 09:27:40,246 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 09:27:40,246 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 09:27:40,246 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 09:27:40,246 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 09:27:40,246 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 09:27:40,246 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_fb7b43a1-a4bb-465a-949f-4d0c584170de/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 -> 01bf3c13fb8dbd0777aa4be7a3e595427bd1de37 [2018-11-10 09:27:40,269 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 09:27:40,278 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 09:27:40,280 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 09:27:40,281 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 09:27:40,281 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 09:27:40,281 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fb7b43a1-a4bb-465a-949f-4d0c584170de/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/cstrncmp_false-no-overflow.c [2018-11-10 09:27:40,320 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fb7b43a1-a4bb-465a-949f-4d0c584170de/bin-2019/ukojak/data/cdbe5f224/22148564a7794a5abed1b82bd9699bc1/FLAGf10e13366 [2018-11-10 09:27:40,681 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 09:27:40,682 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fb7b43a1-a4bb-465a-949f-4d0c584170de/sv-benchmarks/c/termination-crafted-lit/cstrncmp_false-no-overflow.c [2018-11-10 09:27:40,688 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fb7b43a1-a4bb-465a-949f-4d0c584170de/bin-2019/ukojak/data/cdbe5f224/22148564a7794a5abed1b82bd9699bc1/FLAGf10e13366 [2018-11-10 09:27:40,698 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fb7b43a1-a4bb-465a-949f-4d0c584170de/bin-2019/ukojak/data/cdbe5f224/22148564a7794a5abed1b82bd9699bc1 [2018-11-10 09:27:40,701 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 09:27:40,702 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 09:27:40,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 09:27:40,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 09:27:40,706 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 09:27:40,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:27:40" (1/1) ... [2018-11-10 09:27:40,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1114ae3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:27:40, skipping insertion in model container [2018-11-10 09:27:40,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:27:40" (1/1) ... [2018-11-10 09:27:40,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 09:27:40,731 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 09:27:40,845 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 09:27:40,851 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 09:27:40,863 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 09:27:40,875 INFO L193 MainTranslator]: Completed translation [2018-11-10 09:27:40,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:27:40 WrapperNode [2018-11-10 09:27:40,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 09:27:40,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 09:27:40,876 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 09:27:40,876 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 09:27:40,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:27:40" (1/1) ... [2018-11-10 09:27:40,891 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:27:40" (1/1) ... [2018-11-10 09:27:40,906 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 09:27:40,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 09:27:40,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 09:27:40,906 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 09:27:40,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:27:40" (1/1) ... [2018-11-10 09:27:40,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:27:40" (1/1) ... [2018-11-10 09:27:40,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:27:40" (1/1) ... [2018-11-10 09:27:40,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:27:40" (1/1) ... [2018-11-10 09:27:40,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:27:40" (1/1) ... [2018-11-10 09:27:40,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:27:40" (1/1) ... [2018-11-10 09:27:40,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:27:40" (1/1) ... [2018-11-10 09:27:40,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 09:27:40,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 09:27:40,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 09:27:40,922 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 09:27:40,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:27:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fb7b43a1-a4bb-465a-949f-4d0c584170de/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 [2018-11-10 09:27:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure build_nondet_String [2018-11-10 09:27:41,003 INFO L138 BoogieDeclarations]: Found implementation of procedure build_nondet_String [2018-11-10 09:27:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 09:27:41,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 09:27:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 09:27:41,322 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 09:27:41,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:27:41 BoogieIcfgContainer [2018-11-10 09:27:41,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 09:27:41,323 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 09:27:41,323 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 09:27:41,332 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 09:27:41,332 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:27:41" (1/1) ... [2018-11-10 09:27:41,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:27:41,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 09:27:41,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 25 states and 29 transitions. [2018-11-10 09:27:41,376 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2018-11-10 09:27:41,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-10 09:27:41,378 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 09:27:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:27:41,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 09:27:41,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 09:27:41,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2018-11-10 09:27:41,518 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2018-11-10 09:27:41,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-10 09:27:41,519 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 09:27:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:27:41,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 09:27:41,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 09:27:41,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2018-11-10 09:27:41,594 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2018-11-10 09:27:41,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-10 09:27:41,594 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 09:27:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:27:41,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 09:27:41,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 09:27:41,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2018-11-10 09:27:41,624 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2018-11-10 09:27:41,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 09:27:41,627 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 09:27:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:27:41,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 09:27:41,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 09:27:41,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2018-11-10 09:27:41,775 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2018-11-10 09:27:41,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 09:27:41,776 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 09:27:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:27:41,855 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-10 09:27:41,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 09:27:41,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2018-11-10 09:27:41,896 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2018-11-10 09:27:41,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 09:27:41,897 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 09:27:41,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 09:27:41,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 09:27:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 09:27:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 09:27:42,025 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2018-11-10 09:27:42,043 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,044 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,044 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,045 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,045 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,045 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,046 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,046 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,046 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,047 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,047 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,047 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 09:27:42 ImpRootNode [2018-11-10 09:27:42,058 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 09:27:42,059 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 09:27:42,059 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 09:27:42,059 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 09:27:42,059 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:27:41" (3/4) ... [2018-11-10 09:27:42,062 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 09:27:42,063 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,063 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,064 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,064 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,064 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,064 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,065 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,065 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,065 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,066 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,066 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,066 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:27:42,107 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fb7b43a1-a4bb-465a-949f-4d0c584170de/bin-2019/ukojak/witness.graphml [2018-11-10 09:27:42,107 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 09:27:42,108 INFO L168 Benchmark]: Toolchain (without parser) took 1406.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 960.3 MB in the beginning and 1.0 GB in the end (delta: -71.7 MB). Peak memory consumption was 68.3 MB. Max. memory is 11.5 GB. [2018-11-10 09:27:42,109 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 09:27:42,110 INFO L168 Benchmark]: CACSL2BoogieTranslator took 173.11 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-10 09:27:42,110 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.62 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 09:27:42,111 INFO L168 Benchmark]: Boogie Preprocessor took 16.05 ms. Allocated memory is still 1.0 GB. Free memory is still 946.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 09:27:42,111 INFO L168 Benchmark]: RCFGBuilder took 400.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -161.4 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2018-11-10 09:27:42,111 INFO L168 Benchmark]: CodeCheck took 735.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 11.5 GB. [2018-11-10 09:27:42,112 INFO L168 Benchmark]: Witness Printer took 48.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 09:27:42,114 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 2 procedures, 43 locations, 6 error locations. UNSAFE Result, 0.6s OverallTime, 6 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 84 SDtfs, 88 SDslu, 4 SDs, 0 SdLazy, 318 SolverSat, 122 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 234 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 624 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 6/6 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 - CounterExampleResult [Line: 33]: integer overflow possible integer overflow possible We found a FailurePath: [L47] CALL, EXPR build_nondet_String() [L13] int length = __VERIFIER_nondet_int(); [L14] COND TRUE length < 1 [L15] length = 1 [L17] EXPR length * sizeof(char) [L17] EXPR, FCALL malloc(length * sizeof(char)) [L17] char* nondetString = (char*) malloc(length * sizeof(char)); [L18] EXPR length-1 [L18] CALL nondetString[length-1] = '\0' [L18] RET nondetString[length-1] = '\0' [L19] RET return nondetString; [L47] EXPR build_nondet_String() [L47] CALL, EXPR build_nondet_String() [L13] int length = __VERIFIER_nondet_int(); [L14] COND TRUE length < 1 [L15] length = 1 [L17] EXPR length * sizeof(char) [L17] EXPR, FCALL malloc(length * sizeof(char)) [L17] char* nondetString = (char*) malloc(length * sizeof(char)); [L18] EXPR length-1 [L18] CALL nondetString[length-1] = '\0' [L18] RET nondetString[length-1] = '\0' [L19] RET return nondetString; [L47] EXPR build_nondet_String() [L47] CALL cstrncmp(build_nondet_String(),build_nondet_String(),__VERIFIER_nondet_int()) [L28] unsigned char uc1, uc2; [L30] COND FALSE !(n == 0) [L33] n-- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 173.11 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.62 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.05 ms. Allocated memory is still 1.0 GB. Free memory is still 946.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 400.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -161.4 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * CodeCheck took 735.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 11.5 GB. * Witness Printer took 48.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled RESULT: Ultimate proved your program to be incorrect! Received shutdown request...