./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 9bd2c7ff 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_55138d89-e413-4dd0-b4a1-525c0c767eab/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55138d89-e413-4dd0-b4a1-525c0c767eab/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55138d89-e413-4dd0-b4a1-525c0c767eab/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55138d89-e413-4dd0-b4a1-525c0c767eab/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55138d89-e413-4dd0-b4a1-525c0c767eab/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55138d89-e413-4dd0-b4a1-525c0c767eab/bin/ukojak-verify-G8NBE6pJGL --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 0.2.3-dev-9bd2c7f [2023-11-19 04:04:31,342 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:04:31,446 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55138d89-e413-4dd0-b4a1-525c0c767eab/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-19 04:04:31,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:04:31,453 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:04:31,500 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:04:31,501 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:04:31,502 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:04:31,503 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:04:31,508 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:04:31,509 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:04:31,509 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:04:31,510 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:04:31,511 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:04:31,512 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:04:31,512 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 04:04:31,513 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:04:31,513 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:04:31,514 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:04:31,514 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:04:31,514 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:04:31,515 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:04:31,515 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:04:31,516 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:04:31,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:04:31,517 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:04:31,517 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:04:31,517 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:04:31,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:04:31,518 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_55138d89-e413-4dd0-b4a1-525c0c767eab/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55138d89-e413-4dd0-b4a1-525c0c767eab/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07a396ef153f1ca8e856eefcfa25d3d77eb73f779a009e48698bf5ce12969740 [2023-11-19 04:04:31,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:04:31,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:04:31,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:04:31,888 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:04:31,889 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:04:31,890 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55138d89-e413-4dd0-b4a1-525c0c767eab/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c [2023-11-19 04:04:34,878 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:04:35,116 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:04:35,117 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55138d89-e413-4dd0-b4a1-525c0c767eab/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c [2023-11-19 04:04:35,125 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55138d89-e413-4dd0-b4a1-525c0c767eab/bin/ukojak-verify-G8NBE6pJGL/data/389969091/e29dce84b4244f409663b36f03714d3c/FLAGdf975d274 [2023-11-19 04:04:35,141 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55138d89-e413-4dd0-b4a1-525c0c767eab/bin/ukojak-verify-G8NBE6pJGL/data/389969091/e29dce84b4244f409663b36f03714d3c [2023-11-19 04:04:35,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:04:35,146 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:04:35,148 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:04:35,148 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:04:35,153 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:04:35,154 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:04:35" (1/1) ... [2023-11-19 04:04:35,155 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2114db59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:35, skipping insertion in model container [2023-11-19 04:04:35,156 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:04:35" (1/1) ... [2023-11-19 04:04:35,186 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:04:35,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:04:35,410 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:04:35,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:04:35,483 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:04:35,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:35 WrapperNode [2023-11-19 04:04:35,484 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:04:35,485 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:04:35,485 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:04:35,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:04:35,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:35" (1/1) ... [2023-11-19 04:04:35,503 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:35" (1/1) ... [2023-11-19 04:04:35,565 INFO L138 Inliner]: procedures = 9, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 86 [2023-11-19 04:04:35,565 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:04:35,567 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:04:35,567 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:04:35,568 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:04:35,578 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:35" (1/1) ... [2023-11-19 04:04:35,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:35" (1/1) ... [2023-11-19 04:04:35,591 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:35" (1/1) ... [2023-11-19 04:04:35,593 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:35" (1/1) ... [2023-11-19 04:04:35,604 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:35" (1/1) ... [2023-11-19 04:04:35,612 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:35" (1/1) ... [2023-11-19 04:04:35,614 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:35" (1/1) ... [2023-11-19 04:04:35,619 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:35" (1/1) ... [2023-11-19 04:04:35,621 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:04:35,624 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:04:35,625 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:04:35,625 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:04:35,626 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:35" (1/1) ... [2023-11-19 04:04:35,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:04:35,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55138d89-e413-4dd0-b4a1-525c0c767eab/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:04:35,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55138d89-e413-4dd0-b4a1-525c0c767eab/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:04:35,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55138d89-e413-4dd0-b4a1-525c0c767eab/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:04:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:04:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:04:35,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:04:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:04:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:04:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:04:35,805 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:04:35,807 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:04:36,090 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:04:36,184 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:04:36,184 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 04:04:36,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:04:36 BoogieIcfgContainer [2023-11-19 04:04:36,196 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:04:36,198 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:04:36,199 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:04:36,210 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:04:36,210 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:04:36" (1/1) ... [2023-11-19 04:04:36,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:04:36,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:04:36,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2023-11-19 04:04:36,281 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2023-11-19 04:04:36,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:04:36,283 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:04:36,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:04:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:04:36,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:04:36,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:04:36,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2023-11-19 04:04:36,500 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2023-11-19 04:04:36,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:04:36,502 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:04:36,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:04:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:04:36,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:04:36,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:04:36,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2023-11-19 04:04:36,717 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2023-11-19 04:04:36,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 04:04:36,717 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:04:36,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:04:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:04:36,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:04:37,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:04:37,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 28 states and 36 transitions. [2023-11-19 04:04:37,067 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2023-11-19 04:04:37,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 04:04:37,070 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:04:37,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:04:37,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:04:37,111 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:04:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:04:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:04:37,221 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:04:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:04:37,245 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2023-11-19 04:04:37,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:04:37 ImpRootNode [2023-11-19 04:04:37,275 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:04:37,275 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:04:37,275 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:04:37,276 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:04:37,276 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:04:36" (3/4) ... [2023-11-19 04:04:37,277 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 04:04:37,319 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55138d89-e413-4dd0-b4a1-525c0c767eab/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 04:04:37,319 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:04:37,320 INFO L158 Benchmark]: Toolchain (without parser) took 2173.60ms. Allocated memory is still 144.7MB. Free memory was 113.6MB in the beginning and 101.1MB in the end (delta: 12.5MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2023-11-19 04:04:37,320 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 144.7MB. Free memory is still 117.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:04:37,321 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.50ms. Allocated memory is still 144.7MB. Free memory was 113.4MB in the beginning and 118.2MB in the end (delta: -4.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 04:04:37,321 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.40ms. Allocated memory is still 144.7MB. Free memory was 118.2MB in the beginning and 116.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:04:37,322 INFO L158 Benchmark]: Boogie Preprocessor took 56.78ms. Allocated memory is still 144.7MB. Free memory was 116.1MB in the beginning and 114.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:04:37,323 INFO L158 Benchmark]: RCFGBuilder took 573.03ms. Allocated memory is still 144.7MB. Free memory was 114.9MB in the beginning and 97.2MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 04:04:37,323 INFO L158 Benchmark]: CodeCheck took 1076.32ms. Allocated memory is still 144.7MB. Free memory was 97.2MB in the beginning and 103.2MB in the end (delta: -6.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:04:37,324 INFO L158 Benchmark]: Witness Printer took 43.57ms. Allocated memory is still 144.7MB. Free memory was 103.2MB in the beginning and 101.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:04:37,327 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: 1.0s, 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, 91 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s 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 0.32ms. Allocated memory is still 144.7MB. Free memory is still 117.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.50ms. Allocated memory is still 144.7MB. Free memory was 113.4MB in the beginning and 118.2MB in the end (delta: -4.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.40ms. Allocated memory is still 144.7MB. Free memory was 118.2MB in the beginning and 116.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.78ms. Allocated memory is still 144.7MB. Free memory was 116.1MB in the beginning and 114.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 573.03ms. Allocated memory is still 144.7MB. Free memory was 114.9MB in the beginning and 97.2MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 1076.32ms. Allocated memory is still 144.7MB. Free memory was 97.2MB in the beginning and 103.2MB in the end (delta: -6.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 43.57ms. Allocated memory is still 144.7MB. Free memory was 103.2MB in the beginning and 101.1MB 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! [2023-11-19 04:04:37,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55138d89-e413-4dd0-b4a1-525c0c767eab/bin/ukojak-verify-G8NBE6pJGL/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)