./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-dietlibc/wcsstr.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e86dc1-a626-41c6-a4f1-6002896b9780/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e86dc1-a626-41c6-a4f1-6002896b9780/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e86dc1-a626-41c6-a4f1-6002896b9780/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e86dc1-a626-41c6-a4f1-6002896b9780/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-dietlibc/wcsstr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e86dc1-a626-41c6-a4f1-6002896b9780/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e86dc1-a626-41c6-a4f1-6002896b9780/bin/ukojak-verify-Qdu7aM0XO9 --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 64bit --witnessprinter.graph.data.programhash b18f22aa0242fc741d93005272cc93444d5a107b685bf4453016ed833583be3a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:49:44,939 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:49:45,012 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e86dc1-a626-41c6-a4f1-6002896b9780/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2023-12-03 01:49:45,017 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:49:45,017 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:49:45,039 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:49:45,040 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:49:45,041 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:49:45,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:49:45,042 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:49:45,042 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:49:45,043 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-03 01:49:45,043 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-03 01:49:45,044 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-03 01:49:45,044 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:49:45,045 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 01:49:45,045 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:49:45,046 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:49:45,046 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:49:45,047 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:49:45,047 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:49:45,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:49:45,051 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:49:45,051 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:49:45,052 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:49:45,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:49:45,052 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_c7e86dc1-a626-41c6-a4f1-6002896b9780/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e86dc1-a626-41c6-a4f1-6002896b9780/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b18f22aa0242fc741d93005272cc93444d5a107b685bf4453016ed833583be3a [2023-12-03 01:49:45,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:49:45,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:49:45,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:49:45,334 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:49:45,334 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:49:45,335 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e86dc1-a626-41c6-a4f1-6002896b9780/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/termination-dietlibc/wcsstr.i [2023-12-03 01:49:48,322 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:49:48,571 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:49:48,572 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e86dc1-a626-41c6-a4f1-6002896b9780/sv-benchmarks/c/termination-dietlibc/wcsstr.i [2023-12-03 01:49:48,589 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e86dc1-a626-41c6-a4f1-6002896b9780/bin/ukojak-verify-Qdu7aM0XO9/data/4f9193244/251af07ecbdb4db0ae1ac569c47d9a96/FLAG0319ff04e [2023-12-03 01:49:48,607 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e86dc1-a626-41c6-a4f1-6002896b9780/bin/ukojak-verify-Qdu7aM0XO9/data/4f9193244/251af07ecbdb4db0ae1ac569c47d9a96 [2023-12-03 01:49:48,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:49:48,612 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:49:48,614 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:49:48,614 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:49:48,620 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:49:48,620 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:49:48" (1/1) ... [2023-12-03 01:49:48,622 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9bd11fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:49:48, skipping insertion in model container [2023-12-03 01:49:48,622 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:49:48" (1/1) ... [2023-12-03 01:49:48,672 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:49:48,958 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:49:48,972 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:49:49,019 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:49:49,052 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:49:49,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:49:49 WrapperNode [2023-12-03 01:49:49,053 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:49:49,054 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:49:49,054 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:49:49,054 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:49:49,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:49:49" (1/1) ... [2023-12-03 01:49:49,078 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:49:49" (1/1) ... [2023-12-03 01:49:49,107 INFO L138 Inliner]: procedures = 113, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 83 [2023-12-03 01:49:49,108 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:49:49,109 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:49:49,109 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:49:49,110 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:49:49,121 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:49:49" (1/1) ... [2023-12-03 01:49:49,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:49:49" (1/1) ... [2023-12-03 01:49:49,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:49:49" (1/1) ... [2023-12-03 01:49:49,127 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:49:49" (1/1) ... [2023-12-03 01:49:49,134 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:49:49" (1/1) ... [2023-12-03 01:49:49,138 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:49:49" (1/1) ... [2023-12-03 01:49:49,140 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:49:49" (1/1) ... [2023-12-03 01:49:49,142 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:49:49" (1/1) ... [2023-12-03 01:49:49,145 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:49:49,146 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:49:49,147 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:49:49,147 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:49:49,148 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:49:49" (1/1) ... [2023-12-03 01:49:49,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:49:49,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e86dc1-a626-41c6-a4f1-6002896b9780/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:49:49,185 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e86dc1-a626-41c6-a4f1-6002896b9780/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:49:49,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e86dc1-a626-41c6-a4f1-6002896b9780/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:49:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 01:49:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-03 01:49:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 01:49:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 01:49:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:49:49,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:49:49,313 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:49:49,315 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:49:49,572 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:49:49,608 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:49:49,608 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-03 01:49:49,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:49:49 BoogieIcfgContainer [2023-12-03 01:49:49,610 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:49:49,612 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:49:49,612 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:49:49,621 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:49:49,621 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:49:49" (1/1) ... [2023-12-03 01:49:49,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:49:49,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:49:49,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 33 states and 40 transitions. [2023-12-03 01:49:49,682 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2023-12-03 01:49:49,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-03 01:49:49,684 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:49:49,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:49:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:49:49,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:49:49,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:49:49,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 34 states and 42 transitions. [2023-12-03 01:49:49,883 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2023-12-03 01:49:49,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-03 01:49:49,883 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:49:49,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:49:49,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:49:50,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:49:50,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:49:50,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 33 states and 41 transitions. [2023-12-03 01:49:50,061 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2023-12-03 01:49:50,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-03 01:49:50,061 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:49:50,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:49:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:49:50,081 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:49:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:49:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:49:50,130 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:49:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:49:50,147 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2023-12-03 01:49:50,168 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc11 [2023-12-03 01:49:50,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 01:49:50 ImpRootNode [2023-12-03 01:49:50,172 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 01:49:50,173 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 01:49:50,173 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 01:49:50,174 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 01:49:50,174 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:49:49" (3/4) ... [2023-12-03 01:49:50,175 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-12-03 01:49:50,177 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc11 [2023-12-03 01:49:50,217 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e86dc1-a626-41c6-a4f1-6002896b9780/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 01:49:50,217 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 01:49:50,218 INFO L158 Benchmark]: Toolchain (without parser) took 1605.96ms. Allocated memory was 148.9MB in the beginning and 203.4MB in the end (delta: 54.5MB). Free memory was 104.4MB in the beginning and 165.0MB in the end (delta: -60.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:49:50,219 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 148.9MB. Free memory is still 118.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:49:50,219 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.38ms. Allocated memory is still 148.9MB. Free memory was 104.4MB in the beginning and 88.3MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-03 01:49:50,220 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.58ms. Allocated memory is still 148.9MB. Free memory was 88.1MB in the beginning and 86.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:49:50,221 INFO L158 Benchmark]: Boogie Preprocessor took 36.47ms. Allocated memory is still 148.9MB. Free memory was 86.2MB in the beginning and 84.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:49:50,222 INFO L158 Benchmark]: RCFGBuilder took 464.37ms. Allocated memory is still 148.9MB. Free memory was 84.6MB in the beginning and 67.3MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 01:49:50,223 INFO L158 Benchmark]: CodeCheck took 560.75ms. Allocated memory was 148.9MB in the beginning and 203.4MB in the end (delta: 54.5MB). Free memory was 67.3MB in the beginning and 166.0MB in the end (delta: -98.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:49:50,223 INFO L158 Benchmark]: Witness Printer took 43.91ms. Allocated memory is still 203.4MB. Free memory was 166.0MB in the beginning and 165.0MB in the end (delta: 939.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:49:50,227 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, 33 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 4 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: [L515] int in_len = __VERIFIER_nondet_int(); [L516] COND FALSE !(in_len < 1) [L517] int* hay = __builtin_alloca (in_len); VAL [hay={2:0}, in_len=7579] [L518] hay[in_len-1]=0 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 148.9MB. Free memory is still 118.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 439.38ms. Allocated memory is still 148.9MB. Free memory was 104.4MB in the beginning and 88.3MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.58ms. Allocated memory is still 148.9MB. Free memory was 88.1MB in the beginning and 86.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.47ms. Allocated memory is still 148.9MB. Free memory was 86.2MB in the beginning and 84.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 464.37ms. Allocated memory is still 148.9MB. Free memory was 84.6MB in the beginning and 67.3MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 560.75ms. Allocated memory was 148.9MB in the beginning and 203.4MB in the end (delta: 54.5MB). Free memory was 67.3MB in the beginning and 166.0MB in the end (delta: -98.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 43.91ms. Allocated memory is still 203.4MB. Free memory was 166.0MB in the beginning and 165.0MB in the end (delta: 939.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc11 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc11 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate proved your program to be incorrect! [2023-12-03 01:49:50,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e86dc1-a626-41c6-a4f1-6002896b9780/bin/ukojak-verify-Qdu7aM0XO9/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)