./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 cf1a7837 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_4e473fa8-d6d3-436c-95f7-bbda1009c457/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e473fa8-d6d3-436c-95f7-bbda1009c457/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e473fa8-d6d3-436c-95f7-bbda1009c457/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e473fa8-d6d3-436c-95f7-bbda1009c457/bin/ukojak-verify-0OAaufAVZV/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e473fa8-d6d3-436c-95f7-bbda1009c457/bin/ukojak-verify-0OAaufAVZV/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e473fa8-d6d3-436c-95f7-bbda1009c457/bin/ukojak-verify-0OAaufAVZV --witnessprinter.witness.filename witness --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 --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:44:47,494 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:44:47,588 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e473fa8-d6d3-436c-95f7-bbda1009c457/bin/ukojak-verify-0OAaufAVZV/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-11 23:44:47,592 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:44:47,593 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:44:47,615 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:44:47,617 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:44:47,617 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:44:47,618 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:44:47,619 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-11 23:44:47,619 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:44:47,620 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-11 23:44:47,620 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:44:47,621 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-11 23:44:47,621 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-11 23:44:47,622 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-11 23:44:47,623 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:44:47,623 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:44:47,624 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-11 23:44:47,624 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:44:47,625 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:44:47,629 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:44:47,630 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:44:47,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:44:47,634 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:44:47,635 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:44:47,635 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:44:47,635 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:44:47,636 INFO L153 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_4e473fa8-d6d3-436c-95f7-bbda1009c457/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e473fa8-d6d3-436c-95f7-bbda1009c457/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 [2023-11-11 23:44:47,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:44:47,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:44:47,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:44:47,942 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:44:47,943 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:44:47,944 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e473fa8-d6d3-436c-95f7-bbda1009c457/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2023-11-11 23:44:51,070 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:44:51,415 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:44:51,420 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e473fa8-d6d3-436c-95f7-bbda1009c457/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2023-11-11 23:44:51,444 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e473fa8-d6d3-436c-95f7-bbda1009c457/bin/ukojak-verify-0OAaufAVZV/data/6f55ce96f/d0e4b723ac114507b133dcc3ae10eb53/FLAG842ef6acc [2023-11-11 23:44:51,463 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e473fa8-d6d3-436c-95f7-bbda1009c457/bin/ukojak-verify-0OAaufAVZV/data/6f55ce96f/d0e4b723ac114507b133dcc3ae10eb53 [2023-11-11 23:44:51,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:44:51,475 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:44:51,481 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:44:51,481 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:44:51,487 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:44:51,487 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:44:51" (1/1) ... [2023-11-11 23:44:51,491 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2910f1d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:51, skipping insertion in model container [2023-11-11 23:44:51,491 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:44:51" (1/1) ... [2023-11-11 23:44:51,551 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:44:51,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:44:51,956 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:44:51,997 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:44:52,039 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:44:52,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:52 WrapperNode [2023-11-11 23:44:52,040 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:44:52,041 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:44:52,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:44:52,041 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:44:52,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:52" (1/1) ... [2023-11-11 23:44:52,062 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:52" (1/1) ... [2023-11-11 23:44:52,088 INFO L138 Inliner]: procedures = 116, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 122 [2023-11-11 23:44:52,089 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:44:52,090 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:44:52,090 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:44:52,090 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:44:52,100 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:52" (1/1) ... [2023-11-11 23:44:52,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:52" (1/1) ... [2023-11-11 23:44:52,105 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:52" (1/1) ... [2023-11-11 23:44:52,105 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:52" (1/1) ... [2023-11-11 23:44:52,113 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:52" (1/1) ... [2023-11-11 23:44:52,117 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:52" (1/1) ... [2023-11-11 23:44:52,119 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:52" (1/1) ... [2023-11-11 23:44:52,121 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:52" (1/1) ... [2023-11-11 23:44:52,124 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:44:52,125 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:44:52,126 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:44:52,126 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:44:52,127 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:52" (1/1) ... [2023-11-11 23:44:52,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:44:52,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e473fa8-d6d3-436c-95f7-bbda1009c457/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:44:52,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e473fa8-d6d3-436c-95f7-bbda1009c457/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:44:52,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e473fa8-d6d3-436c-95f7-bbda1009c457/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:44:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-11 23:44:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-11 23:44:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-11 23:44:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-11 23:44:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:44:52,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:44:52,329 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:44:52,331 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:44:52,770 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:44:52,859 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:44:52,859 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-11 23:44:52,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:44:52 BoogieIcfgContainer [2023-11-11 23:44:52,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:44:52,864 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:44:52,865 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:44:52,876 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:44:52,877 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:44:52" (1/1) ... [2023-11-11 23:44:52,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:44:52,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:44:52,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 50 states and 55 transitions. [2023-11-11 23:44:52,960 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2023-11-11 23:44:52,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-11 23:44:52,962 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:44:52,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:44:53,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:44:53,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:44:53,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:44:53,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 52 states and 59 transitions. [2023-11-11 23:44:53,647 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2023-11-11 23:44:53,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-11 23:44:53,652 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:44:53,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:44:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:44:53,732 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-11 23:44:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:44:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:44:53,837 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-11 23:44:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:44:53,864 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-11 23:44:53,890 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc14 [2023-11-11 23:44:53,891 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc17 [2023-11-11 23:44:53,891 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc15 [2023-11-11 23:44:53,892 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc16 [2023-11-11 23:44:53,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 11.11 11:44:53 ImpRootNode [2023-11-11 23:44:53,896 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-11 23:44:53,898 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-11 23:44:53,898 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-11 23:44:53,899 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-11 23:44:53,899 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:44:52" (3/4) ... [2023-11-11 23:44:53,900 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-11 23:44:53,904 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc17 [2023-11-11 23:44:53,904 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc15 [2023-11-11 23:44:53,904 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc16 [2023-11-11 23:44:53,904 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc14 [2023-11-11 23:44:53,935 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e473fa8-d6d3-436c-95f7-bbda1009c457/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-11 23:44:53,935 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-11 23:44:53,936 INFO L158 Benchmark]: Toolchain (without parser) took 2461.45ms. Allocated memory is still 184.5MB. Free memory was 137.3MB in the beginning and 129.5MB in the end (delta: 7.8MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2023-11-11 23:44:53,937 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 134.2MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:44:53,937 INFO L158 Benchmark]: CACSL2BoogieTranslator took 559.79ms. Allocated memory is still 184.5MB. Free memory was 137.3MB in the beginning and 119.9MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-11 23:44:53,938 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.34ms. Allocated memory is still 184.5MB. Free memory was 119.9MB in the beginning and 117.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:44:53,939 INFO L158 Benchmark]: Boogie Preprocessor took 34.58ms. Allocated memory is still 184.5MB. Free memory was 117.8MB in the beginning and 116.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:44:53,939 INFO L158 Benchmark]: RCFGBuilder took 737.73ms. Allocated memory is still 184.5MB. Free memory was 116.4MB in the beginning and 90.6MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-11 23:44:53,940 INFO L158 Benchmark]: CodeCheck took 1031.91ms. Allocated memory is still 184.5MB. Free memory was 90.6MB in the beginning and 131.7MB in the end (delta: -41.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:44:53,941 INFO L158 Benchmark]: Witness Printer took 37.89ms. Allocated memory is still 184.5MB. Free memory was 131.7MB in the beginning and 129.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:44:53,945 INFO L338 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: 1.0s, 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, 0.5s 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 [M=1073741823, N=1073741824, best={2:0}, cost={3:0}, i=0, size={4:0}, val={5:0}] [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 0.36ms. Allocated memory is still 134.2MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 559.79ms. Allocated memory is still 184.5MB. Free memory was 137.3MB in the beginning and 119.9MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.34ms. Allocated memory is still 184.5MB. Free memory was 119.9MB in the beginning and 117.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.58ms. Allocated memory is still 184.5MB. Free memory was 117.8MB in the beginning and 116.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 737.73ms. Allocated memory is still 184.5MB. Free memory was 116.4MB in the beginning and 90.6MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 1031.91ms. Allocated memory is still 184.5MB. Free memory was 90.6MB in the beginning and 131.7MB in the end (delta: -41.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 37.89ms. Allocated memory is still 184.5MB. Free memory was 131.7MB in the beginning and 129.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc14 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc17 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc15 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc16 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc17 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc15 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc16 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc14 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate proved your program to be incorrect! [2023-11-11 23:44:53,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e473fa8-d6d3-436c-95f7-bbda1009c457/bin/ukojak-verify-0OAaufAVZV/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)