./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-dietlibc/strtoul.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2739abf8-d457-40c2-a981-81352a94e727/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2739abf8-d457-40c2-a981-81352a94e727/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2739abf8-d457-40c2-a981-81352a94e727/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2739abf8-d457-40c2-a981-81352a94e727/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-dietlibc/strtoul.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2739abf8-d457-40c2-a981-81352a94e727/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2739abf8-d457-40c2-a981-81352a94e727/bin/ukojak-pZX7IvK2PQ --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 d4f351cb322dbf1a8c0048cd0e44aa29b2553ea539b13a26ee79638cd7ecc928 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 18:26:58,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 18:26:58,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 18:26:58,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 18:26:58,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 18:26:58,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 18:26:58,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 18:26:58,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 18:26:58,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 18:26:58,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 18:26:58,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 18:26:58,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 18:26:58,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 18:26:58,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 18:26:58,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 18:26:58,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 18:26:58,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 18:26:58,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 18:26:58,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 18:26:58,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 18:26:58,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 18:26:58,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 18:26:58,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 18:26:58,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 18:26:58,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 18:26:58,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 18:26:58,198 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 18:26:58,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 18:26:58,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 18:26:58,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 18:26:58,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 18:26:58,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 18:26:58,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 18:26:58,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 18:26:58,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 18:26:58,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 18:26:58,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 18:26:58,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 18:26:58,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 18:26:58,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 18:26:58,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 18:26:58,221 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2739abf8-d457-40c2-a981-81352a94e727/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 18:26:58,267 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 18:26:58,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 18:26:58,269 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 18:26:58,269 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 18:26:58,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 18:26:58,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 18:26:58,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 18:26:58,270 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 18:26:58,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 18:26:58,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 18:26:58,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 18:26:58,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 18:26:58,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 18:26:58,272 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 18:26:58,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 18:26:58,272 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 18:26:58,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 18:26:58,273 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 18:26:58,273 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 18:26:58,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 18:26:58,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:26:58,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 18:26:58,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 18:26:58,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 18:26:58,274 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 18:26:58,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 18:26:58,274 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 18:26:58,274 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_2739abf8-d457-40c2-a981-81352a94e727/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2739abf8-d457-40c2-a981-81352a94e727/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4f351cb322dbf1a8c0048cd0e44aa29b2553ea539b13a26ee79638cd7ecc928 [2022-11-20 18:26:58,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 18:26:58,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 18:26:58,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 18:26:58,577 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 18:26:58,577 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 18:26:58,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2739abf8-d457-40c2-a981-81352a94e727/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/termination-dietlibc/strtoul.i [2022-11-20 18:27:01,620 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 18:27:01,907 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 18:27:01,908 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2739abf8-d457-40c2-a981-81352a94e727/sv-benchmarks/c/termination-dietlibc/strtoul.i [2022-11-20 18:27:01,920 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2739abf8-d457-40c2-a981-81352a94e727/bin/ukojak-pZX7IvK2PQ/data/8a524ee07/a8c98d79771745f88fd58d448601d7b1/FLAGd1a6987c6 [2022-11-20 18:27:01,934 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2739abf8-d457-40c2-a981-81352a94e727/bin/ukojak-pZX7IvK2PQ/data/8a524ee07/a8c98d79771745f88fd58d448601d7b1 [2022-11-20 18:27:01,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 18:27:01,938 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 18:27:01,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 18:27:01,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 18:27:01,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 18:27:01,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:27:01" (1/1) ... [2022-11-20 18:27:01,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26f4cb09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:01, skipping insertion in model container [2022-11-20 18:27:01,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:27:01" (1/1) ... [2022-11-20 18:27:01,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 18:27:02,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 18:27:02,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:27:02,324 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 18:27:02,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:27:02,433 INFO L208 MainTranslator]: Completed translation [2022-11-20 18:27:02,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:02 WrapperNode [2022-11-20 18:27:02,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 18:27:02,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 18:27:02,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 18:27:02,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 18:27:02,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:02" (1/1) ... [2022-11-20 18:27:02,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:02" (1/1) ... [2022-11-20 18:27:02,507 INFO L138 Inliner]: procedures = 116, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 167 [2022-11-20 18:27:02,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 18:27:02,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 18:27:02,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 18:27:02,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 18:27:02,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:02" (1/1) ... [2022-11-20 18:27:02,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:02" (1/1) ... [2022-11-20 18:27:02,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:02" (1/1) ... [2022-11-20 18:27:02,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:02" (1/1) ... [2022-11-20 18:27:02,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:02" (1/1) ... [2022-11-20 18:27:02,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:02" (1/1) ... [2022-11-20 18:27:02,538 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:02" (1/1) ... [2022-11-20 18:27:02,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:02" (1/1) ... [2022-11-20 18:27:02,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 18:27:02,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 18:27:02,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 18:27:02,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 18:27:02,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:27:02" (1/1) ... [2022-11-20 18:27:02,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:27:02,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2739abf8-d457-40c2-a981-81352a94e727/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 18:27:02,582 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2739abf8-d457-40c2-a981-81352a94e727/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 18:27:02,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2739abf8-d457-40c2-a981-81352a94e727/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 18:27:02,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 18:27:02,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 18:27:02,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 18:27:02,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 18:27:02,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 18:27:02,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 18:27:02,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 18:27:02,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 18:27:02,721 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 18:27:02,723 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 18:27:03,133 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 18:27:03,202 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 18:27:03,203 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 18:27:03,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:27:03 BoogieIcfgContainer [2022-11-20 18:27:03,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 18:27:03,207 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 18:27:03,207 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 18:27:03,217 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 18:27:03,218 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:27:03" (1/1) ... [2022-11-20 18:27:03,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:27:03,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:27:03,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 60 states and 74 transitions. [2022-11-20 18:27:03,284 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2022-11-20 18:27:03,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 18:27:03,286 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:27:03,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:27:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:27:03,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:27:03,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:27:03,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 61 states and 75 transitions. [2022-11-20 18:27:03,562 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 75 transitions. [2022-11-20 18:27:03,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 18:27:03,563 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:27:03,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:27:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:27:03,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:27:03,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:27:03,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 63 states and 78 transitions. [2022-11-20 18:27:03,675 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 78 transitions. [2022-11-20 18:27:03,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 18:27:03,676 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:27:03,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:27:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:27:03,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:27:03,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:27:03,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 66 states and 82 transitions. [2022-11-20 18:27:03,789 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 82 transitions. [2022-11-20 18:27:03,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 18:27:03,789 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:27:03,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:27:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:27:03,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:27:04,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:27:04,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 70 states and 90 transitions. [2022-11-20 18:27:04,104 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 90 transitions. [2022-11-20 18:27:04,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 18:27:04,107 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:27:04,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:27:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:27:04,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:27:04,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:27:04,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 73 states and 94 transitions. [2022-11-20 18:27:04,198 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 94 transitions. [2022-11-20 18:27:04,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 18:27:04,199 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:27:04,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:27:04,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:27:04,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:27:04,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:27:04,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 74 states and 97 transitions. [2022-11-20 18:27:04,274 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 97 transitions. [2022-11-20 18:27:04,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 18:27:04,275 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:27:04,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:27:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:27:04,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 18:27:04,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:27:04,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 76 states and 98 transitions. [2022-11-20 18:27:04,433 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2022-11-20 18:27:04,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 18:27:04,435 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:27:04,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:27:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:27:04,504 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 18:27:04,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:27:04,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 76 states and 97 transitions. [2022-11-20 18:27:04,607 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 97 transitions. [2022-11-20 18:27:04,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 18:27:04,609 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:27:04,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:27:04,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:27:04,807 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:27:05,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:27:05,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 80 states and 106 transitions. [2022-11-20 18:27:05,120 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 106 transitions. [2022-11-20 18:27:05,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 18:27:05,121 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:27:05,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:27:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:27:05,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:27:05,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:27:05,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 80 states and 105 transitions. [2022-11-20 18:27:05,183 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 105 transitions. [2022-11-20 18:27:05,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 18:27:05,184 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:27:05,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:27:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:27:05,236 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 18:27:05,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:27:05,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 81 states and 106 transitions. [2022-11-20 18:27:05,323 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 106 transitions. [2022-11-20 18:27:05,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 18:27:05,325 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:27:05,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:27:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:27:05,466 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:27:05,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:27:05,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 86 states and 113 transitions. [2022-11-20 18:27:05,793 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 113 transitions. [2022-11-20 18:27:05,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 18:27:05,794 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:27:05,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:27:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:27:05,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:27:05,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:27:05,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 85 states and 112 transitions. [2022-11-20 18:27:05,966 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 112 transitions. [2022-11-20 18:27:05,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 18:27:05,972 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:27:05,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:27:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:27:06,036 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 18:27:06,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:27:06,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 87 states and 114 transitions. [2022-11-20 18:27:06,255 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 114 transitions. [2022-11-20 18:27:06,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 18:27:06,256 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:27:06,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:27:06,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:27:06,279 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 18:27:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:27:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:27:06,350 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 18:27:06,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:27:06,388 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 15 iterations. [2022-11-20 18:27:06,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 06:27:06 ImpRootNode [2022-11-20 18:27:06,423 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 18:27:06,424 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 18:27:06,424 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 18:27:06,424 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 18:27:06,425 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:27:03" (3/4) ... [2022-11-20 18:27:06,426 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 18:27:06,519 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2739abf8-d457-40c2-a981-81352a94e727/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 18:27:06,519 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 18:27:06,520 INFO L158 Benchmark]: Toolchain (without parser) took 4581.38ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 128.8MB in the beginning and 117.9MB in the end (delta: 10.9MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2022-11-20 18:27:06,520 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 117.4MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:27:06,521 INFO L158 Benchmark]: CACSL2BoogieTranslator took 494.54ms. Allocated memory is still 157.3MB. Free memory was 128.2MB in the beginning and 111.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 18:27:06,522 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.76ms. Allocated memory is still 157.3MB. Free memory was 111.5MB in the beginning and 109.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:27:06,522 INFO L158 Benchmark]: Boogie Preprocessor took 34.23ms. Allocated memory is still 157.3MB. Free memory was 109.1MB in the beginning and 107.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:27:06,523 INFO L158 Benchmark]: RCFGBuilder took 662.50ms. Allocated memory is still 157.3MB. Free memory was 107.4MB in the beginning and 83.9MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-20 18:27:06,523 INFO L158 Benchmark]: CodeCheck took 3216.60ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 83.9MB in the beginning and 121.0MB in the end (delta: -37.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:27:06,524 INFO L158 Benchmark]: Witness Printer took 95.38ms. Allocated memory is still 188.7MB. Free memory was 121.0MB in the beginning and 117.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:27:06,528 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 1 procedures, 60 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 15, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 593 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 450 mSDsluCounter, 135 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 74 mSDsCounter, 240 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1397 IncrementalHoareTripleChecker+Invalid, 1637 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 240 mSolverCounterUnsat, 61 mSDtfsCounter, 1397 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 955 GetRequests, 889 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1739 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 13/22 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: 519]: integer overflow possible integer overflow possible We found a FailurePath: [L551] int in_len = __VERIFIER_nondet_int(); [L552] COND FALSE !(in_len < 1) [L553] char* in = __builtin_alloca (in_len); [L554] int i=0; VAL [__builtin_alloca (in_len)={3:0}, i=0, in={3:0}, in_len=1] [L554] EXPR in_len-1 VAL [__builtin_alloca (in_len)={3:0}, i=0, in={3:0}, in_len=1] [L554] COND FALSE !(i