./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 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac96c89-d825-466d-9b9a-f7664287d4a8/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac96c89-d825-466d-9b9a-f7664287d4a8/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac96c89-d825-466d-9b9a-f7664287d4a8/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac96c89-d825-466d-9b9a-f7664287d4a8/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-dietlibc/strtoul.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac96c89-d825-466d-9b9a-f7664287d4a8/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac96c89-d825-466d-9b9a-f7664287d4a8/bin/ukojak-rkRKPMF4O4 --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-2329fc7 [2022-12-15 00:08:40,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-15 00:08:40,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-15 00:08:40,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-15 00:08:40,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-15 00:08:40,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-15 00:08:40,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-15 00:08:40,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-15 00:08:40,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-15 00:08:40,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-15 00:08:40,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-15 00:08:40,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-15 00:08:40,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-15 00:08:40,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-15 00:08:40,439 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-15 00:08:40,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-15 00:08:40,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-15 00:08:40,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-15 00:08:40,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-15 00:08:40,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-15 00:08:40,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-15 00:08:40,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-15 00:08:40,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-15 00:08:40,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-15 00:08:40,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-15 00:08:40,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-15 00:08:40,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-15 00:08:40,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-15 00:08:40,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-15 00:08:40,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-15 00:08:40,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-15 00:08:40,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-15 00:08:40,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-15 00:08:40,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-15 00:08:40,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-15 00:08:40,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-15 00:08:40,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-15 00:08:40,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-15 00:08:40,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-15 00:08:40,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-15 00:08:40,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-15 00:08:40,457 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac96c89-d825-466d-9b9a-f7664287d4a8/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-12-15 00:08:40,470 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-15 00:08:40,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-15 00:08:40,471 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-15 00:08:40,471 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-15 00:08:40,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-15 00:08:40,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-15 00:08:40,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-15 00:08:40,471 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-15 00:08:40,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-15 00:08:40,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-15 00:08:40,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-15 00:08:40,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-15 00:08:40,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-15 00:08:40,472 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-15 00:08:40,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-15 00:08:40,472 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-15 00:08:40,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-15 00:08:40,472 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-15 00:08:40,472 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-15 00:08:40,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-15 00:08:40,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 00:08:40,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-15 00:08:40,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-15 00:08:40,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-15 00:08:40,473 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-15 00:08:40,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-15 00:08:40,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-15 00:08:40,473 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_aac96c89-d825-466d-9b9a-f7664287d4a8/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac96c89-d825-466d-9b9a-f7664287d4a8/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4f351cb322dbf1a8c0048cd0e44aa29b2553ea539b13a26ee79638cd7ecc928 [2022-12-15 00:08:40,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-15 00:08:40,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-15 00:08:40,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-15 00:08:40,660 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-15 00:08:40,660 INFO L275 PluginConnector]: CDTParser initialized [2022-12-15 00:08:40,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac96c89-d825-466d-9b9a-f7664287d4a8/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/termination-dietlibc/strtoul.i [2022-12-15 00:08:43,218 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-15 00:08:43,426 INFO L351 CDTParser]: Found 1 translation units. [2022-12-15 00:08:43,427 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac96c89-d825-466d-9b9a-f7664287d4a8/sv-benchmarks/c/termination-dietlibc/strtoul.i [2022-12-15 00:08:43,437 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac96c89-d825-466d-9b9a-f7664287d4a8/bin/ukojak-rkRKPMF4O4/data/aa8e21868/7efd5246a2ee4a89b1ab0d782a660fb2/FLAG3e72f0844 [2022-12-15 00:08:43,790 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac96c89-d825-466d-9b9a-f7664287d4a8/bin/ukojak-rkRKPMF4O4/data/aa8e21868/7efd5246a2ee4a89b1ab0d782a660fb2 [2022-12-15 00:08:43,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-15 00:08:43,793 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-15 00:08:43,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-15 00:08:43,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-15 00:08:43,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-15 00:08:43,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:08:43" (1/1) ... [2022-12-15 00:08:43,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f7f5e80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:08:43, skipping insertion in model container [2022-12-15 00:08:43,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:08:43" (1/1) ... [2022-12-15 00:08:43,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-15 00:08:43,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-15 00:08:44,031 WARN L623 FunctionHandler]: Unknown extern function strtoul [2022-12-15 00:08:44,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 00:08:44,042 INFO L203 MainTranslator]: Completed pre-run [2022-12-15 00:08:44,080 WARN L623 FunctionHandler]: Unknown extern function strtoul [2022-12-15 00:08:44,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 00:08:44,108 INFO L208 MainTranslator]: Completed translation [2022-12-15 00:08:44,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:08:44 WrapperNode [2022-12-15 00:08:44,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-15 00:08:44,110 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-15 00:08:44,110 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-15 00:08:44,110 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-15 00:08:44,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:08:44" (1/1) ... [2022-12-15 00:08:44,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:08:44" (1/1) ... [2022-12-15 00:08:44,156 INFO L138 Inliner]: procedures = 116, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 167 [2022-12-15 00:08:44,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-15 00:08:44,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-15 00:08:44,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-15 00:08:44,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-15 00:08:44,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:08:44" (1/1) ... [2022-12-15 00:08:44,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:08:44" (1/1) ... [2022-12-15 00:08:44,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:08:44" (1/1) ... [2022-12-15 00:08:44,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:08:44" (1/1) ... [2022-12-15 00:08:44,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:08:44" (1/1) ... [2022-12-15 00:08:44,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:08:44" (1/1) ... [2022-12-15 00:08:44,185 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:08:44" (1/1) ... [2022-12-15 00:08:44,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:08:44" (1/1) ... [2022-12-15 00:08:44,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-15 00:08:44,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-15 00:08:44,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-15 00:08:44,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-15 00:08:44,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:08:44" (1/1) ... [2022-12-15 00:08:44,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 00:08:44,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac96c89-d825-466d-9b9a-f7664287d4a8/bin/ukojak-rkRKPMF4O4/z3 [2022-12-15 00:08:44,215 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac96c89-d825-466d-9b9a-f7664287d4a8/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-15 00:08:44,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac96c89-d825-466d-9b9a-f7664287d4a8/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-15 00:08:44,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-15 00:08:44,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-15 00:08:44,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-15 00:08:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-15 00:08:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-15 00:08:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-15 00:08:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-15 00:08:44,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-15 00:08:44,321 INFO L235 CfgBuilder]: Building ICFG [2022-12-15 00:08:44,322 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-15 00:08:44,587 INFO L276 CfgBuilder]: Performing block encoding [2022-12-15 00:08:44,655 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-15 00:08:44,656 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-15 00:08:44,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:08:44 BoogieIcfgContainer [2022-12-15 00:08:44,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-15 00:08:44,659 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-15 00:08:44,660 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-15 00:08:44,668 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-15 00:08:44,668 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:08:44" (1/1) ... [2022-12-15 00:08:44,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-15 00:08:44,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:08:44,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 60 states and 74 transitions. [2022-12-15 00:08:44,720 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2022-12-15 00:08:44,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-15 00:08:44,721 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:08:44,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:08:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:08:44,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:08:44,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:08:44,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 61 states and 75 transitions. [2022-12-15 00:08:44,881 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 75 transitions. [2022-12-15 00:08:44,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-15 00:08:44,881 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:08:44,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:08:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:08:44,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:08:44,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:08:44,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 63 states and 78 transitions. [2022-12-15 00:08:44,966 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 78 transitions. [2022-12-15 00:08:44,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-15 00:08:44,966 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:08:44,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:08:44,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:08:45,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:08:45,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:08:45,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 66 states and 82 transitions. [2022-12-15 00:08:45,026 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 82 transitions. [2022-12-15 00:08:45,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-15 00:08:45,027 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:08:45,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:08:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:08:45,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:08:45,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:08:45,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 70 states and 89 transitions. [2022-12-15 00:08:45,215 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions. [2022-12-15 00:08:45,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-15 00:08:45,217 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:08:45,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:08:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:08:45,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:08:45,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:08:45,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 73 states and 93 transitions. [2022-12-15 00:08:45,283 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 93 transitions. [2022-12-15 00:08:45,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-15 00:08:45,283 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:08:45,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:08:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:08:45,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:08:45,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:08:45,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 74 states and 96 transitions. [2022-12-15 00:08:45,337 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 96 transitions. [2022-12-15 00:08:45,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-15 00:08:45,338 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:08:45,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:08:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:08:45,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-15 00:08:45,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:08:45,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 74 states and 95 transitions. [2022-12-15 00:08:45,426 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 95 transitions. [2022-12-15 00:08:45,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-15 00:08:45,427 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:08:45,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:08:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:08:45,456 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-15 00:08:45,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:08:45,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 76 states and 96 transitions. [2022-12-15 00:08:45,522 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 96 transitions. [2022-12-15 00:08:45,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-15 00:08:45,522 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:08:45,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:08:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:08:45,608 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:08:45,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:08:45,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 80 states and 102 transitions. [2022-12-15 00:08:45,840 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 102 transitions. [2022-12-15 00:08:45,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-15 00:08:45,841 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:08:45,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:08:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:08:45,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:08:45,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:08:45,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 80 states and 101 transitions. [2022-12-15 00:08:45,866 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 101 transitions. [2022-12-15 00:08:45,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-15 00:08:45,867 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:08:45,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:08:45,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:08:45,890 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-15 00:08:45,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:08:45,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 81 states and 102 transitions. [2022-12-15 00:08:45,935 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 102 transitions. [2022-12-15 00:08:45,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-15 00:08:45,936 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:08:45,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:08:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:08:46,003 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:08:46,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:08:46,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 86 states and 111 transitions. [2022-12-15 00:08:46,224 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 111 transitions. [2022-12-15 00:08:46,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-15 00:08:46,225 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:08:46,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:08:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 00:08:46,242 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-15 00:08:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 00:08:46,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 00:08:46,307 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-15 00:08:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 00:08:46,335 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 13 iterations. [2022-12-15 00:08:46,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 15.12 12:08:46 ImpRootNode [2022-12-15 00:08:46,367 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-15 00:08:46,368 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-15 00:08:46,368 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-15 00:08:46,368 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-15 00:08:46,369 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:08:44" (3/4) ... [2022-12-15 00:08:46,370 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-15 00:08:46,414 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac96c89-d825-466d-9b9a-f7664287d4a8/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-15 00:08:46,414 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-15 00:08:46,415 INFO L158 Benchmark]: Toolchain (without parser) took 2621.44ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 97.9MB in the beginning and 58.4MB in the end (delta: 39.4MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2022-12-15 00:08:46,415 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 96.5MB. Free memory is still 46.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 00:08:46,416 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.69ms. Allocated memory is still 134.2MB. Free memory was 97.5MB in the beginning and 80.6MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-15 00:08:46,417 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.47ms. Allocated memory is still 134.2MB. Free memory was 80.6MB in the beginning and 78.1MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-15 00:08:46,417 INFO L158 Benchmark]: Boogie Preprocessor took 33.06ms. Allocated memory is still 134.2MB. Free memory was 78.1MB in the beginning and 76.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 00:08:46,418 INFO L158 Benchmark]: RCFGBuilder took 467.86ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 76.4MB in the beginning and 122.4MB in the end (delta: -46.0MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2022-12-15 00:08:46,418 INFO L158 Benchmark]: CodeCheck took 1708.01ms. Allocated memory is still 161.5MB. Free memory was 122.4MB in the beginning and 61.6MB in the end (delta: 60.9MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. [2022-12-15 00:08:46,419 INFO L158 Benchmark]: Witness Printer took 46.46ms. Allocated memory is still 161.5MB. Free memory was 61.6MB in the beginning and 58.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 00:08:46,422 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: 1.7s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 443 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 315 mSDsluCounter, 97 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 188 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1012 IncrementalHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 188 mSolverCounterUnsat, 51 mSDtfsCounter, 1012 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 747 GetRequests, 691 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1195 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 219 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 6/15 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