./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc 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_3b05eb8c-7d89-40fd-9d43-8d04ca9fb1f5/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b05eb8c-7d89-40fd-9d43-8d04ca9fb1f5/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_3b05eb8c-7d89-40fd-9d43-8d04ca9fb1f5/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b05eb8c-7d89-40fd-9d43-8d04ca9fb1f5/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b05eb8c-7d89-40fd-9d43-8d04ca9fb1f5/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b05eb8c-7d89-40fd-9d43-8d04ca9fb1f5/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 32bit --witnessprinter.graph.data.programhash 07a396ef153f1ca8e856eefcfa25d3d77eb73f779a009e48698bf5ce12969740 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:16:24,780 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:16:24,847 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b05eb8c-7d89-40fd-9d43-8d04ca9fb1f5/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-12-03 01:16:24,852 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:16:24,852 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:16:24,875 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:16:24,877 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:16:24,877 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:16:24,878 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:16:24,878 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 01:16:24,879 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:16:24,879 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 01:16:24,880 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:16:24,881 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-03 01:16:24,881 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-03 01:16:24,882 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-03 01:16:24,882 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:16:24,883 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 01:16:24,883 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 01:16:24,884 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:16:24,884 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:16:24,885 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:16:24,886 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:16:24,886 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:16:24,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:16:24,887 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:16:24,888 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:16:24,888 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:16:24,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:16:24,889 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_3b05eb8c-7d89-40fd-9d43-8d04ca9fb1f5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b05eb8c-7d89-40fd-9d43-8d04ca9fb1f5/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07a396ef153f1ca8e856eefcfa25d3d77eb73f779a009e48698bf5ce12969740 [2023-12-03 01:16:25,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:16:25,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:16:25,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:16:25,124 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:16:25,125 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:16:25,126 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b05eb8c-7d89-40fd-9d43-8d04ca9fb1f5/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c [2023-12-03 01:16:27,880 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:16:28,031 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:16:28,032 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b05eb8c-7d89-40fd-9d43-8d04ca9fb1f5/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c [2023-12-03 01:16:28,038 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b05eb8c-7d89-40fd-9d43-8d04ca9fb1f5/bin/ukojak-verify-Qdu7aM0XO9/data/651cca9be/dc5d59396aec4e31b90dce492b062c37/FLAGced6a4ffa [2023-12-03 01:16:28,050 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b05eb8c-7d89-40fd-9d43-8d04ca9fb1f5/bin/ukojak-verify-Qdu7aM0XO9/data/651cca9be/dc5d59396aec4e31b90dce492b062c37 [2023-12-03 01:16:28,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:16:28,054 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:16:28,056 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:16:28,056 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:16:28,061 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:16:28,062 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:16:28" (1/1) ... [2023-12-03 01:16:28,063 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@242052dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:16:28, skipping insertion in model container [2023-12-03 01:16:28,063 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:16:28" (1/1) ... [2023-12-03 01:16:28,085 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:16:28,245 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:16:28,255 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:16:28,274 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:16:28,290 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:16:28,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:16:28 WrapperNode [2023-12-03 01:16:28,290 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:16:28,292 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:16:28,292 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:16:28,292 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:16:28,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:16:28" (1/1) ... [2023-12-03 01:16:28,306 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:16:28" (1/1) ... [2023-12-03 01:16:28,328 INFO L138 Inliner]: procedures = 9, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 86 [2023-12-03 01:16:28,329 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:16:28,329 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:16:28,330 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:16:28,330 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:16:28,339 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:16:28" (1/1) ... [2023-12-03 01:16:28,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:16:28" (1/1) ... [2023-12-03 01:16:28,341 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:16:28" (1/1) ... [2023-12-03 01:16:28,342 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:16:28" (1/1) ... [2023-12-03 01:16:28,348 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:16:28" (1/1) ... [2023-12-03 01:16:28,352 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:16:28" (1/1) ... [2023-12-03 01:16:28,353 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:16:28" (1/1) ... [2023-12-03 01:16:28,355 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:16:28" (1/1) ... [2023-12-03 01:16:28,357 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:16:28,358 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:16:28,358 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:16:28,358 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:16:28,359 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:16:28" (1/1) ... [2023-12-03 01:16:28,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:16:28,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b05eb8c-7d89-40fd-9d43-8d04ca9fb1f5/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:16:28,388 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b05eb8c-7d89-40fd-9d43-8d04ca9fb1f5/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:16:28,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b05eb8c-7d89-40fd-9d43-8d04ca9fb1f5/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:16:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-03 01:16:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:16:28,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:16:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 01:16:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 01:16:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 01:16:28,490 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:16:28,492 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:16:28,687 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:16:28,753 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:16:28,754 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-03 01:16:28,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:16:28 BoogieIcfgContainer [2023-12-03 01:16:28,756 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:16:28,757 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:16:28,757 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:16:28,767 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:16:28,767 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:16:28" (1/1) ... [2023-12-03 01:16:28,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:16:28,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:16:28,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2023-12-03 01:16:28,831 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2023-12-03 01:16:28,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 01:16:28,833 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:16:28,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:16:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:16:28,987 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 01:16:29,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:16:29,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2023-12-03 01:16:29,026 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2023-12-03 01:16:29,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 01:16:29,029 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:16:29,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:16:29,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:16:29,139 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 01:16:29,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:16:29,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2023-12-03 01:16:29,178 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2023-12-03 01:16:29,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-03 01:16:29,178 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:16:29,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:16:29,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:16:29,301 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 01:16:29,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:16:29,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 28 states and 36 transitions. [2023-12-03 01:16:29,422 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2023-12-03 01:16:29,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-03 01:16:29,422 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:16:29,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:16:29,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:16:29,440 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:16:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:16:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:16:29,495 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:16:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:16:29,514 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2023-12-03 01:16:29,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 01:16:29 ImpRootNode [2023-12-03 01:16:29,539 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 01:16:29,540 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 01:16:29,540 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 01:16:29,540 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 01:16:29,540 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:16:28" (3/4) ... [2023-12-03 01:16:29,541 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-12-03 01:16:29,579 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b05eb8c-7d89-40fd-9d43-8d04ca9fb1f5/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 01:16:29,580 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 01:16:29,580 INFO L158 Benchmark]: Toolchain (without parser) took 1526.12ms. Allocated memory is still 148.9MB. Free memory was 111.0MB in the beginning and 97.7MB in the end (delta: 13.2MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2023-12-03 01:16:29,581 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 59.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:16:29,581 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.18ms. Allocated memory is still 148.9MB. Free memory was 110.5MB in the beginning and 100.3MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 01:16:29,582 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.31ms. Allocated memory is still 148.9MB. Free memory was 100.3MB in the beginning and 98.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:16:29,583 INFO L158 Benchmark]: Boogie Preprocessor took 27.47ms. Allocated memory is still 148.9MB. Free memory was 98.9MB in the beginning and 97.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:16:29,583 INFO L158 Benchmark]: RCFGBuilder took 398.14ms. Allocated memory is still 148.9MB. Free memory was 97.3MB in the beginning and 80.1MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 01:16:29,584 INFO L158 Benchmark]: CodeCheck took 782.32ms. Allocated memory is still 148.9MB. Free memory was 80.1MB in the beginning and 99.8MB in the end (delta: -19.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:16:29,584 INFO L158 Benchmark]: Witness Printer took 40.03ms. Allocated memory is still 148.9MB. Free memory was 99.8MB in the beginning and 97.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:16:29,587 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, 24 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 17 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: [L32] int i, b[100]; [L33] i = 0 VAL [b={3:0}, i=0] [L33] COND TRUE i < 100 [L34] CALL foo(i, b, i) [L21] int a[n], i; [L22] i = 0 VAL [\old(n)=0, \old(size)=0, a={2:0}, b={3:0}, b={3:0}, i=0, n=0, size=0] [L22] COND FALSE !(i < size) [L25] CALL bar(a, size + 1) [L12] int res = 0, i; [L13] i = 0 VAL [\old(size)=1, b={2:0}, b={2:0}, i=0, res=0, size=1] [L13] COND TRUE i < size VAL [\old(size)=1, b={2:0}, b={2:0}, i=0, res=0, size=1] [L14] b[i] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 59.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 235.18ms. Allocated memory is still 148.9MB. Free memory was 110.5MB in the beginning and 100.3MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.31ms. Allocated memory is still 148.9MB. Free memory was 100.3MB in the beginning and 98.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.47ms. Allocated memory is still 148.9MB. Free memory was 98.9MB in the beginning and 97.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 398.14ms. Allocated memory is still 148.9MB. Free memory was 97.3MB in the beginning and 80.1MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 782.32ms. Allocated memory is still 148.9MB. Free memory was 80.1MB in the beginning and 99.8MB in the end (delta: -19.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 40.03ms. Allocated memory is still 148.9MB. Free memory was 99.8MB in the beginning and 97.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-12-03 01:16:29,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b05eb8c-7d89-40fd-9d43-8d04ca9fb1f5/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)