./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-15/array18_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_a510d942-a8a8-4ce3-87cd-bb95f8688dee/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a510d942-a8a8-4ce3-87cd-bb95f8688dee/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_a510d942-a8a8-4ce3-87cd-bb95f8688dee/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a510d942-a8a8-4ce3-87cd-bb95f8688dee/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-15/array18_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a510d942-a8a8-4ce3-87cd-bb95f8688dee/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_a510d942-a8a8-4ce3-87cd-bb95f8688dee/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 91342ec879332f5d2cf6840d919ddc3d2a815377394d5610d880c093520bd843 --- 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 18:07:06,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 18:07:06,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 18:07:06,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 18:07:06,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 18:07:06,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 18:07:06,393 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 18:07:06,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 18:07:06,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 18:07:06,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 18:07:06,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 18:07:06,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 18:07:06,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 18:07:06,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 18:07:06,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 18:07:06,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 18:07:06,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 18:07:06,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 18:07:06,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 18:07:06,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 18:07:06,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 18:07:06,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 18:07:06,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 18:07:06,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 18:07:06,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 18:07:06,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 18:07:06,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 18:07:06,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 18:07:06,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 18:07:06,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 18:07:06,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 18:07:06,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 18:07:06,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 18:07:06,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 18:07:06,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 18:07:06,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 18:07:06,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 18:07:06,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 18:07:06,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 18:07:06,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 18:07:06,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 18:07:06,454 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a510d942-a8a8-4ce3-87cd-bb95f8688dee/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 18:07:06,503 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 18:07:06,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 18:07:06,505 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 18:07:06,505 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 18:07:06,506 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 18:07:06,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 18:07:06,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 18:07:06,506 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 18:07:06,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 18:07:06,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 18:07:06,508 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 18:07:06,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 18:07:06,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 18:07:06,508 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 18:07:06,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 18:07:06,509 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 18:07:06,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 18:07:06,509 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 18:07:06,509 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 18:07:06,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 18:07:06,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:07:06,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 18:07:06,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 18:07:06,510 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 18:07:06,510 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 18:07:06,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 18:07:06,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 18:07:06,511 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_a510d942-a8a8-4ce3-87cd-bb95f8688dee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a510d942-a8a8-4ce3-87cd-bb95f8688dee/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91342ec879332f5d2cf6840d919ddc3d2a815377394d5610d880c093520bd843 [2022-11-20 18:07:06,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 18:07:06,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 18:07:06,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 18:07:06,818 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 18:07:06,819 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 18:07:06,821 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a510d942-a8a8-4ce3-87cd-bb95f8688dee/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/termination-15/array18_alloca.i [2022-11-20 18:07:09,942 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 18:07:10,224 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 18:07:10,224 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a510d942-a8a8-4ce3-87cd-bb95f8688dee/sv-benchmarks/c/termination-15/array18_alloca.i [2022-11-20 18:07:10,239 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a510d942-a8a8-4ce3-87cd-bb95f8688dee/bin/ukojak-pZX7IvK2PQ/data/14e3b7a8a/80776f4162be489a954edb76c0a2fb4c/FLAG07eb7e5eb [2022-11-20 18:07:10,259 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a510d942-a8a8-4ce3-87cd-bb95f8688dee/bin/ukojak-pZX7IvK2PQ/data/14e3b7a8a/80776f4162be489a954edb76c0a2fb4c [2022-11-20 18:07:10,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 18:07:10,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 18:07:10,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 18:07:10,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 18:07:10,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 18:07:10,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:07:10" (1/1) ... [2022-11-20 18:07:10,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40c0ecb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:10, skipping insertion in model container [2022-11-20 18:07:10,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:07:10" (1/1) ... [2022-11-20 18:07:10,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 18:07:10,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 18:07:10,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:07:10,712 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 18:07:10,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:07:10,812 INFO L208 MainTranslator]: Completed translation [2022-11-20 18:07:10,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:10 WrapperNode [2022-11-20 18:07:10,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 18:07:10,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 18:07:10,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 18:07:10,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 18:07:10,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:10" (1/1) ... [2022-11-20 18:07:10,844 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:10" (1/1) ... [2022-11-20 18:07:10,873 INFO L138 Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2022-11-20 18:07:10,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 18:07:10,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 18:07:10,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 18:07:10,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 18:07:10,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:10" (1/1) ... [2022-11-20 18:07:10,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:10" (1/1) ... [2022-11-20 18:07:10,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:10" (1/1) ... [2022-11-20 18:07:10,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:10" (1/1) ... [2022-11-20 18:07:10,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:10" (1/1) ... [2022-11-20 18:07:10,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:10" (1/1) ... [2022-11-20 18:07:10,918 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:10" (1/1) ... [2022-11-20 18:07:10,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:10" (1/1) ... [2022-11-20 18:07:10,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 18:07:10,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 18:07:10,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 18:07:10,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 18:07:10,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:10" (1/1) ... [2022-11-20 18:07:10,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:07:10,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a510d942-a8a8-4ce3-87cd-bb95f8688dee/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 18:07:10,951 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a510d942-a8a8-4ce3-87cd-bb95f8688dee/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 18:07:10,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a510d942-a8a8-4ce3-87cd-bb95f8688dee/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 18:07:11,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 18:07:11,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 18:07:11,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 18:07:11,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 18:07:11,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 18:07:11,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 18:07:11,113 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 18:07:11,116 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 18:07:11,295 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 18:07:11,340 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 18:07:11,340 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 18:07:11,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:07:11 BoogieIcfgContainer [2022-11-20 18:07:11,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 18:07:11,344 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 18:07:11,344 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 18:07:11,354 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 18:07:11,354 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:07:11" (1/1) ... [2022-11-20 18:07:11,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:07:11,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:07:11,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2022-11-20 18:07:11,450 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-11-20 18:07:11,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 18:07:11,453 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:07:11,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:07:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:07:11,792 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 18:07:11,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:07:11,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2022-11-20 18:07:11,880 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2022-11-20 18:07:11,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 18:07:11,880 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:07:11,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:07:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:07:12,000 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 18:07:12,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:07:12,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2022-11-20 18:07:12,042 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2022-11-20 18:07:12,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 18:07:12,043 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:07:12,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:07:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:07:12,195 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 18:07:12,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:07:12,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2022-11-20 18:07:12,268 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2022-11-20 18:07:12,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 18:07:12,270 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:07:12,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:07:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:07:12,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:07:12,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:07:12,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 40 transitions. [2022-11-20 18:07:12,758 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2022-11-20 18:07:12,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 18:07:12,759 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:07:12,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:07:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:07:12,823 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 18:07:12,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:07:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:07:12,876 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 18:07:12,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:07:12,895 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2022-11-20 18:07:12,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 06:07:12 ImpRootNode [2022-11-20 18:07:12,921 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 18:07:12,922 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 18:07:12,922 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 18:07:12,922 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 18:07:12,923 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:07:11" (3/4) ... [2022-11-20 18:07:12,925 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 18:07:12,960 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a510d942-a8a8-4ce3-87cd-bb95f8688dee/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 18:07:12,960 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 18:07:12,961 INFO L158 Benchmark]: Toolchain (without parser) took 2694.51ms. Allocated memory is still 176.2MB. Free memory was 147.2MB in the beginning and 134.8MB in the end (delta: 12.4MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2022-11-20 18:07:12,961 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 115.3MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:07:12,962 INFO L158 Benchmark]: CACSL2BoogieTranslator took 542.53ms. Allocated memory is still 176.2MB. Free memory was 147.2MB in the beginning and 130.1MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 18:07:12,962 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.95ms. Allocated memory is still 176.2MB. Free memory was 129.6MB in the beginning and 128.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:07:12,963 INFO L158 Benchmark]: Boogie Preprocessor took 44.89ms. Allocated memory is still 176.2MB. Free memory was 128.0MB in the beginning and 126.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:07:12,964 INFO L158 Benchmark]: RCFGBuilder took 421.71ms. Allocated memory is still 176.2MB. Free memory was 126.4MB in the beginning and 113.4MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 18:07:12,964 INFO L158 Benchmark]: CodeCheck took 1577.37ms. Allocated memory is still 176.2MB. Free memory was 113.4MB in the beginning and 136.9MB in the end (delta: -23.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:07:12,965 INFO L158 Benchmark]: Witness Printer took 38.65ms. Allocated memory is still 176.2MB. Free memory was 136.9MB in the beginning and 134.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:07:12,967 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 1 procedures, 18 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 149 IncrementalHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 6 mSDtfsCounter, 149 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 182 GetRequests, 151 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 77 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 0/2 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: 378]: integer overflow possible integer overflow possible We found a FailurePath: [L365] int i, j; [L366] int length = __VERIFIER_nondet_int(); [L367] COND TRUE length < 1 [L367] length = 1 [L368] int *arr = __builtin_alloca(length*sizeof(int)); VAL [__builtin_alloca(length*sizeof(int))={2:0}, arr={2:0}, length=1] [L369] COND FALSE !(!arr) [L370] i=0 VAL [__builtin_alloca(length*sizeof(int))={2:0}, arr={2:0}, i=0, length=1] [L370] COND TRUE i