./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_f8a6073b-563d-4b4a-b4d9-6069da3be31a/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a6073b-563d-4b4a-b4d9-6069da3be31a/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_f8a6073b-563d-4b4a-b4d9-6069da3be31a/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a6073b-563d-4b4a-b4d9-6069da3be31a/bin/ukojak-rkRKPMF4O4/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a6073b-563d-4b4a-b4d9-6069da3be31a/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a6073b-563d-4b4a-b4d9-6069da3be31a/bin/ukojak-rkRKPMF4O4 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 --- 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 [2022-12-14 18:03:07,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 18:03:07,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 18:03:07,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 18:03:07,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 18:03:07,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 18:03:07,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 18:03:07,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 18:03:07,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 18:03:07,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 18:03:07,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 18:03:07,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 18:03:07,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 18:03:07,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 18:03:07,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 18:03:07,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 18:03:07,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 18:03:07,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 18:03:07,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 18:03:07,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 18:03:07,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 18:03:07,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 18:03:07,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 18:03:07,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 18:03:07,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 18:03:07,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 18:03:07,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 18:03:07,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 18:03:07,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 18:03:07,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 18:03:07,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 18:03:07,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 18:03:07,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 18:03:07,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 18:03:07,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 18:03:07,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 18:03:07,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 18:03:07,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 18:03:07,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 18:03:07,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 18:03:07,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 18:03:07,214 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a6073b-563d-4b4a-b4d9-6069da3be31a/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2022-12-14 18:03:07,234 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 18:03:07,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 18:03:07,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 18:03:07,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 18:03:07,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 18:03:07,236 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 18:03:07,236 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 18:03:07,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 18:03:07,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 18:03:07,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 18:03:07,237 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 18:03:07,237 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 18:03:07,237 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 18:03:07,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 18:03:07,237 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 18:03:07,237 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 18:03:07,238 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 18:03:07,238 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 18:03:07,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 18:03:07,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 18:03:07,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 18:03:07,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 18:03:07,239 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 18:03:07,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 18:03:07,239 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_f8a6073b-563d-4b4a-b4d9-6069da3be31a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a6073b-563d-4b4a-b4d9-6069da3be31a/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 [2022-12-14 18:03:07,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 18:03:07,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 18:03:07,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 18:03:07,465 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 18:03:07,466 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 18:03:07,467 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a6073b-563d-4b4a-b4d9-6069da3be31a/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2022-12-14 18:03:10,056 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 18:03:10,281 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 18:03:10,282 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a6073b-563d-4b4a-b4d9-6069da3be31a/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2022-12-14 18:03:10,293 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a6073b-563d-4b4a-b4d9-6069da3be31a/bin/ukojak-rkRKPMF4O4/data/f8824b82d/34714717c6b54e13985fac61fff20a12/FLAGe154e11a4 [2022-12-14 18:03:10,653 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a6073b-563d-4b4a-b4d9-6069da3be31a/bin/ukojak-rkRKPMF4O4/data/f8824b82d/34714717c6b54e13985fac61fff20a12 [2022-12-14 18:03:10,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 18:03:10,660 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 18:03:10,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 18:03:10,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 18:03:10,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 18:03:10,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:03:10" (1/1) ... [2022-12-14 18:03:10,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6af929d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:10, skipping insertion in model container [2022-12-14 18:03:10,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:03:10" (1/1) ... [2022-12-14 18:03:10,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 18:03:10,697 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 18:03:10,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 18:03:10,872 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 18:03:10,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 18:03:10,917 INFO L208 MainTranslator]: Completed translation [2022-12-14 18:03:10,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:10 WrapperNode [2022-12-14 18:03:10,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 18:03:10,918 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 18:03:10,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 18:03:10,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 18:03:10,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:10" (1/1) ... [2022-12-14 18:03:10,932 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:10" (1/1) ... [2022-12-14 18:03:10,947 INFO L138 Inliner]: procedures = 116, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 116 [2022-12-14 18:03:10,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 18:03:10,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 18:03:10,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 18:03:10,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 18:03:10,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:10" (1/1) ... [2022-12-14 18:03:10,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:10" (1/1) ... [2022-12-14 18:03:10,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:10" (1/1) ... [2022-12-14 18:03:10,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:10" (1/1) ... [2022-12-14 18:03:10,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:10" (1/1) ... [2022-12-14 18:03:10,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:10" (1/1) ... [2022-12-14 18:03:10,964 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:10" (1/1) ... [2022-12-14 18:03:10,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:10" (1/1) ... [2022-12-14 18:03:10,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 18:03:10,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 18:03:10,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 18:03:10,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 18:03:10,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:10" (1/1) ... [2022-12-14 18:03:10,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 18:03:10,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a6073b-563d-4b4a-b4d9-6069da3be31a/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 18:03:10,992 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a6073b-563d-4b4a-b4d9-6069da3be31a/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 18:03:10,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a6073b-563d-4b4a-b4d9-6069da3be31a/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 18:03:11,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 18:03:11,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 18:03:11,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 18:03:11,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 18:03:11,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 18:03:11,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 18:03:11,112 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 18:03:11,114 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 18:03:11,376 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 18:03:11,418 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 18:03:11,419 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 18:03:11,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:03:11 BoogieIcfgContainer [2022-12-14 18:03:11,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 18:03:11,421 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 18:03:11,421 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 18:03:11,429 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 18:03:11,429 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:03:11" (1/1) ... [2022-12-14 18:03:11,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 18:03:11,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:03:11,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 50 states and 55 transitions. [2022-12-14 18:03:11,475 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2022-12-14 18:03:11,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 18:03:11,477 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:03:11,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:03:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:03:11,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:03:11,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:03:11,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 52 states and 59 transitions. [2022-12-14 18:03:11,926 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2022-12-14 18:03:11,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 18:03:11,927 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:03:11,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:03:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 18:03:11,949 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 18:03:11,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 18:03:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 18:03:12,001 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 18:03:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 18:03:12,019 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-12-14 18:03:12,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 06:03:12 ImpRootNode [2022-12-14 18:03:12,037 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 18:03:12,037 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 18:03:12,037 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 18:03:12,038 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 18:03:12,038 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:03:11" (3/4) ... [2022-12-14 18:03:12,039 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 18:03:12,063 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a6073b-563d-4b4a-b4d9-6069da3be31a/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 18:03:12,063 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 18:03:12,064 INFO L158 Benchmark]: Toolchain (without parser) took 1403.84ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 80.2MB in the beginning and 89.1MB in the end (delta: -8.9MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2022-12-14 18:03:12,064 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 115.3MB. Free memory is still 92.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 18:03:12,065 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.87ms. Allocated memory is still 115.3MB. Free memory was 79.9MB in the beginning and 63.5MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 18:03:12,065 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.13ms. Allocated memory is still 115.3MB. Free memory was 63.5MB in the beginning and 61.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 18:03:12,066 INFO L158 Benchmark]: Boogie Preprocessor took 18.94ms. Allocated memory is still 115.3MB. Free memory was 61.4MB in the beginning and 59.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 18:03:12,066 INFO L158 Benchmark]: RCFGBuilder took 453.47ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 59.6MB in the beginning and 99.6MB in the end (delta: -40.0MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2022-12-14 18:03:12,066 INFO L158 Benchmark]: CodeCheck took 615.48ms. Allocated memory is still 138.4MB. Free memory was 99.6MB in the beginning and 91.1MB in the end (delta: 8.5MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2022-12-14 18:03:12,067 INFO L158 Benchmark]: Witness Printer took 26.25ms. Allocated memory is still 138.4MB. Free memory was 91.1MB in the beginning and 89.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 18:03:12,069 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, 50 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 2 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L527] int N = __VERIFIER_nondet_int(); [L528] int M = __VERIFIER_nondet_int(); [L529] COND FALSE !(N < 1) [L532] COND FALSE !(M < 1) [L535] int *size = (int*) __builtin_alloca (N * sizeof(int)); [L536] int *val = (int*) __builtin_alloca (N * sizeof(int)); [L537] int *cost = (int*) __builtin_alloca (M * sizeof(int)); [L538] int *best = (int*) __builtin_alloca (M * sizeof(int)); [L540] int i = 0; VAL [__builtin_alloca (M * sizeof(int))={2:0}, __builtin_alloca (M * sizeof(int))={5:0}, __builtin_alloca (N * sizeof(int))={4:0}, __builtin_alloca (N * sizeof(int))={3:0}, best={2:0}, cost={5:0}, i=0, M=1073766596, N=1073741824, size={4:0}, val={3:0}] [L540] COND TRUE i < N [L542] size[i] = __VERIFIER_nondet_int() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 115.3MB. Free memory is still 92.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.87ms. Allocated memory is still 115.3MB. Free memory was 79.9MB in the beginning and 63.5MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.13ms. Allocated memory is still 115.3MB. Free memory was 63.5MB in the beginning and 61.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.94ms. Allocated memory is still 115.3MB. Free memory was 61.4MB in the beginning and 59.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 453.47ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 59.6MB in the beginning and 99.6MB in the end (delta: -40.0MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * CodeCheck took 615.48ms. Allocated memory is still 138.4MB. Free memory was 99.6MB in the beginning and 91.1MB in the end (delta: 8.5MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Witness Printer took 26.25ms. Allocated memory is still 138.4MB. Free memory was 91.1MB in the beginning and 89.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-12-14 18:03:12,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a6073b-563d-4b4a-b4d9-6069da3be31a/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)