./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrncmp.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4901f85f-38e1-4b19-9815-b2ea0e7b54ec/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4901f85f-38e1-4b19-9815-b2ea0e7b54ec/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4901f85f-38e1-4b19-9815-b2ea0e7b54ec/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4901f85f-38e1-4b19-9815-b2ea0e7b54ec/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrncmp.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4901f85f-38e1-4b19-9815-b2ea0e7b54ec/bin/ukojak-Rh5K9KB4LI/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4901f85f-38e1-4b19-9815-b2ea0e7b54ec/bin/ukojak-Rh5K9KB4LI --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 87534de3d459ca9409f2dccef0ebbf0eeafdc010d6ce5fc12d39e28438c1bbdf .............................................................................................................................................................................................................................................................................. 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 0.2.1-dev-b2eff8b [2021-10-29 03:58:03,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:58:03,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:58:03,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:58:03,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:58:03,251 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:58:03,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:58:03,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:58:03,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:58:03,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:58:03,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:58:03,265 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:58:03,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:58:03,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:58:03,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:58:03,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:58:03,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:58:03,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:58:03,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:58:03,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:58:03,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:58:03,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:58:03,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:58:03,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:58:03,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:58:03,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:58:03,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:58:03,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:58:03,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:58:03,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:58:03,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:58:03,305 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:58:03,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:58:03,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:58:03,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:58:03,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:58:03,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:58:03,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:58:03,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:58:03,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:58:03,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:58:03,317 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4901f85f-38e1-4b19-9815-b2ea0e7b54ec/bin/ukojak-Rh5K9KB4LI/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-10-29 03:58:03,369 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:58:03,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:58:03,372 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 03:58:03,373 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 03:58:03,374 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:58:03,374 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:58:03,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:58:03,375 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 03:58:03,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:58:03,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:58:03,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 03:58:03,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:58:03,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 03:58:03,386 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-29 03:58:03,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 03:58:03,386 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:58:03,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 03:58:03,387 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:58:03,387 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:58:03,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:58:03,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:58:03,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:58:03,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:58:03,389 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 03:58:03,389 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:58:03,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:58:03,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 03:58:03,390 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4901f85f-38e1-4b19-9815-b2ea0e7b54ec/bin/ukojak-Rh5K9KB4LI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4901f85f-38e1-4b19-9815-b2ea0e7b54ec/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87534de3d459ca9409f2dccef0ebbf0eeafdc010d6ce5fc12d39e28438c1bbdf [2021-10-29 03:58:03,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:58:03,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:58:03,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:58:03,748 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:58:03,749 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:58:03,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4901f85f-38e1-4b19-9815-b2ea0e7b54ec/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/termination-crafted-lit/cstrncmp.c [2021-10-29 03:58:03,833 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4901f85f-38e1-4b19-9815-b2ea0e7b54ec/bin/ukojak-Rh5K9KB4LI/data/53e90f5ac/068453aaf314498f8ff98ab576bcdb43/FLAGa49ea2d9e [2021-10-29 03:58:04,462 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:58:04,463 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4901f85f-38e1-4b19-9815-b2ea0e7b54ec/sv-benchmarks/c/termination-crafted-lit/cstrncmp.c [2021-10-29 03:58:04,470 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4901f85f-38e1-4b19-9815-b2ea0e7b54ec/bin/ukojak-Rh5K9KB4LI/data/53e90f5ac/068453aaf314498f8ff98ab576bcdb43/FLAGa49ea2d9e [2021-10-29 03:58:04,834 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4901f85f-38e1-4b19-9815-b2ea0e7b54ec/bin/ukojak-Rh5K9KB4LI/data/53e90f5ac/068453aaf314498f8ff98ab576bcdb43 [2021-10-29 03:58:04,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:58:04,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:58:04,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:58:04,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:58:04,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:58:04,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:58:04" (1/1) ... [2021-10-29 03:58:04,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55384b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:04, skipping insertion in model container [2021-10-29 03:58:04,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:58:04" (1/1) ... [2021-10-29 03:58:04,859 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:58:04,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:58:05,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:58:05,058 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:58:05,072 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:58:05,084 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:58:05,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:05 WrapperNode [2021-10-29 03:58:05,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:58:05,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:58:05,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:58:05,086 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:58:05,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:05" (1/1) ... [2021-10-29 03:58:05,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:05" (1/1) ... [2021-10-29 03:58:05,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:58:05,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:58:05,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:58:05,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:58:05,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:05" (1/1) ... [2021-10-29 03:58:05,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:05" (1/1) ... [2021-10-29 03:58:05,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:05" (1/1) ... [2021-10-29 03:58:05,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:05" (1/1) ... [2021-10-29 03:58:05,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:05" (1/1) ... [2021-10-29 03:58:05,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:05" (1/1) ... [2021-10-29 03:58:05,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:05" (1/1) ... [2021-10-29 03:58:05,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:58:05,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:58:05,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:58:05,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:58:05,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:05" (1/1) ... [2021-10-29 03:58:05,154 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:58:05,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4901f85f-38e1-4b19-9815-b2ea0e7b54ec/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:58:05,181 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4901f85f-38e1-4b19-9815-b2ea0e7b54ec/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:58:05,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4901f85f-38e1-4b19-9815-b2ea0e7b54ec/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:58:05,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 03:58:05,215 INFO L130 BoogieDeclarations]: Found specification of procedure build_nondet_String [2021-10-29 03:58:05,216 INFO L138 BoogieDeclarations]: Found implementation of procedure build_nondet_String [2021-10-29 03:58:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 03:58:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:58:05,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:58:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 03:58:05,542 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:58:05,542 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-29 03:58:05,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:58:05 BoogieIcfgContainer [2021-10-29 03:58:05,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:58:05,545 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:58:05,545 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:58:05,555 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:58:05,555 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:58:05" (1/1) ... [2021-10-29 03:58:05,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:58:05,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:58:05,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 25 states and 29 transitions. [2021-10-29 03:58:05,607 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2021-10-29 03:58:05,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 03:58:05,609 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:58:05,610 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:58:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:58:05,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:58:05,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:58:05,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2021-10-29 03:58:05,837 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-10-29 03:58:05,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:58:05,838 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:58:05,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:58:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:58:05,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:58:06,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:58:06,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2021-10-29 03:58:06,029 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-10-29 03:58:06,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 03:58:06,030 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:58:06,031 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:58:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:58:06,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:58:06,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:58:06,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2021-10-29 03:58:06,125 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2021-10-29 03:58:06,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 03:58:06,126 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:58:06,126 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:58:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:58:06,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:58:06,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:58:06,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2021-10-29 03:58:06,401 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2021-10-29 03:58:06,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 03:58:06,408 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:58:06,408 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:58:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:58:06,550 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 03:58:06,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:58:06,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2021-10-29 03:58:06,613 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-10-29 03:58:06,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 03:58:06,614 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:58:06,615 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:58:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:58:06,669 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:58:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:58:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:58:06,795 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:58:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:58:06,841 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2021-10-29 03:58:06,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:58:06 ImpRootNode [2021-10-29 03:58:06,896 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:58:06,897 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:58:06,897 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:58:06,897 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:58:06,898 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:58:05" (3/4) ... [2021-10-29 03:58:06,900 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 03:58:06,949 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4901f85f-38e1-4b19-9815-b2ea0e7b54ec/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:58:06,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:58:06,952 INFO L168 Benchmark]: Toolchain (without parser) took 2111.15 ms. Allocated memory was 100.7 MB in the beginning and 130.0 MB in the end (delta: 29.4 MB). Free memory was 68.9 MB in the beginning and 81.3 MB in the end (delta: -12.4 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2021-10-29 03:58:06,953 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 100.7 MB. Free memory is still 55.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:58:06,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.41 ms. Allocated memory is still 100.7 MB. Free memory was 68.7 MB in the beginning and 75.7 MB in the end (delta: -7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:58:06,962 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.57 ms. Allocated memory is still 100.7 MB. Free memory was 75.7 MB in the beginning and 74.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:58:06,963 INFO L168 Benchmark]: Boogie Preprocessor took 23.86 ms. Allocated memory is still 100.7 MB. Free memory was 74.0 MB in the beginning and 72.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:58:06,963 INFO L168 Benchmark]: RCFGBuilder took 398.73 ms. Allocated memory is still 100.7 MB. Free memory was 72.9 MB in the beginning and 58.6 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-29 03:58:06,964 INFO L168 Benchmark]: CodeCheck took 1351.28 ms. Allocated memory was 100.7 MB in the beginning and 130.0 MB in the end (delta: 29.4 MB). Free memory was 58.6 MB in the beginning and 83.4 MB in the end (delta: -24.8 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. [2021-10-29 03:58:06,964 INFO L168 Benchmark]: Witness Printer took 52.63 ms. Allocated memory is still 130.0 MB. Free memory was 83.4 MB in the beginning and 81.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:58:06,967 INFO L339 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, 25 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 84 SDtfs, 124 SDslu, 4 SDs, 0 SdLazy, 386 SolverSat, 90 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 243 GetRequests, 226 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 66 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 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 build_nondet_String() [L13] int length = __VERIFIER_nondet_int(); [L14] COND FALSE !(length < 1) VAL [length=868] [L17] EXPR length * sizeof(char) [L17] char* nondetString = (char*) malloc(length * sizeof(char)); [L18] EXPR length-1 [L18] nondetString[length-1] = '\0' [L19] return nondetString; [L47] RET build_nondet_String() [L47] CALL build_nondet_String() [L13] int length = __VERIFIER_nondet_int(); [L14] COND TRUE length < 1 [L15] length = 1 VAL [length=1] [L17] EXPR length * sizeof(char) [L17] char* nondetString = (char*) malloc(length * sizeof(char)); [L18] EXPR length-1 [L18] nondetString[length-1] = '\0' [L19] return nondetString; [L47] RET build_nondet_String() [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 0.39 ms. Allocated memory is still 100.7 MB. Free memory is still 55.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 238.41 ms. Allocated memory is still 100.7 MB. Free memory was 68.7 MB in the beginning and 75.7 MB in the end (delta: -7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.57 ms. Allocated memory is still 100.7 MB. Free memory was 75.7 MB in the beginning and 74.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.86 ms. Allocated memory is still 100.7 MB. Free memory was 74.0 MB in the beginning and 72.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 398.73 ms. Allocated memory is still 100.7 MB. Free memory was 72.9 MB in the beginning and 58.6 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 1351.28 ms. Allocated memory was 100.7 MB in the beginning and 130.0 MB in the end (delta: 29.4 MB). Free memory was 58.6 MB in the beginning and 83.4 MB in the end (delta: -24.8 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. * Witness Printer took 52.63 ms. Allocated memory is still 130.0 MB. Free memory was 83.4 MB in the beginning and 81.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-29 03:58:07,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4901f85f-38e1-4b19-9815-b2ea0e7b54ec/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...