./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/derefAfterFree1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ab8c5d-b00a-40b0-bc0a-6bab9fe6675d/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ab8c5d-b00a-40b0-bc0a-6bab9fe6675d/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ab8c5d-b00a-40b0-bc0a-6bab9fe6675d/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ab8c5d-b00a-40b0-bc0a-6bab9fe6675d/bin/ukojak-verify-EEHR8qb7sm/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/derefAfterFree1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ab8c5d-b00a-40b0-bc0a-6bab9fe6675d/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ab8c5d-b00a-40b0-bc0a-6bab9fe6675d/bin/ukojak-verify-EEHR8qb7sm --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 a759f8d678ad469b9fde9b60c61d539be5ffd1b82a7250e29929fb245cee5670 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:23:45,617 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:23:45,671 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ab8c5d-b00a-40b0-bc0a-6bab9fe6675d/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-11-13 21:23:45,679 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:23:45,679 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:23:45,713 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:23:45,718 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:23:45,718 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:23:45,718 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:23:45,718 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 21:23:45,718 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:23:45,718 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 21:23:45,718 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:23:45,718 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 21:23:45,719 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 21:23:45,719 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 21:23:45,719 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:23:45,719 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:23:45,719 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:23:45,719 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 21:23:45,719 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:23:45,719 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:23:45,719 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:23:45,720 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:23:45,720 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:23:45,720 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:23:45,720 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:23:45,722 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:23:45,722 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:23:45,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:23:45,722 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_23ab8c5d-b00a-40b0-bc0a-6bab9fe6675d/bin/ukojak-verify-EEHR8qb7sm 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 -> a759f8d678ad469b9fde9b60c61d539be5ffd1b82a7250e29929fb245cee5670 [2024-11-13 21:23:46,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:23:46,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:23:46,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:23:46,020 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:23:46,021 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:23:46,022 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ab8c5d-b00a-40b0-bc0a-6bab9fe6675d/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/memsafety-ext3/derefAfterFree1.c Unable to find full path for "g++" [2024-11-13 21:23:47,942 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:23:48,144 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:23:48,145 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ab8c5d-b00a-40b0-bc0a-6bab9fe6675d/sv-benchmarks/c/memsafety-ext3/derefAfterFree1.c [2024-11-13 21:23:48,152 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ab8c5d-b00a-40b0-bc0a-6bab9fe6675d/bin/ukojak-verify-EEHR8qb7sm/data/145e72ffd/34293d4020854889ad1b3c6a15822f5b/FLAGa8d1f4921 [2024-11-13 21:23:48,183 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ab8c5d-b00a-40b0-bc0a-6bab9fe6675d/bin/ukojak-verify-EEHR8qb7sm/data/145e72ffd/34293d4020854889ad1b3c6a15822f5b [2024-11-13 21:23:48,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:23:48,187 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:23:48,188 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:23:48,189 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:23:48,193 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:23:48,194 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:23:48" (1/1) ... [2024-11-13 21:23:48,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@256a88f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:23:48, skipping insertion in model container [2024-11-13 21:23:48,195 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:23:48" (1/1) ... [2024-11-13 21:23:48,207 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:23:48,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:23:48,363 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:23:48,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:23:48,393 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:23:48,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:23:48 WrapperNode [2024-11-13 21:23:48,393 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:23:48,394 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:23:48,395 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:23:48,395 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:23:48,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:23:48" (1/1) ... [2024-11-13 21:23:48,408 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:23:48" (1/1) ... [2024-11-13 21:23:48,425 INFO L138 Inliner]: procedures = 10, calls = 6, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 16 [2024-11-13 21:23:48,425 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:23:48,426 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:23:48,426 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:23:48,426 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:23:48,434 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:23:48" (1/1) ... [2024-11-13 21:23:48,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:23:48" (1/1) ... [2024-11-13 21:23:48,440 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:23:48" (1/1) ... [2024-11-13 21:23:48,440 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:23:48" (1/1) ... [2024-11-13 21:23:48,444 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:23:48" (1/1) ... [2024-11-13 21:23:48,450 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:23:48" (1/1) ... [2024-11-13 21:23:48,450 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:23:48" (1/1) ... [2024-11-13 21:23:48,451 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:23:48" (1/1) ... [2024-11-13 21:23:48,452 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:23:48,455 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:23:48,456 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:23:48,456 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:23:48,457 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:23:48" (1/1) ... [2024-11-13 21:23:48,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:23:48,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ab8c5d-b00a-40b0-bc0a-6bab9fe6675d/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:23:48,497 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ab8c5d-b00a-40b0-bc0a-6bab9fe6675d/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:23:48,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ab8c5d-b00a-40b0-bc0a-6bab9fe6675d/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:23:48,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 21:23:48,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 21:23:48,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:23:48,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:23:48,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 21:23:48,607 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:23:48,609 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:23:48,755 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-13 21:23:48,756 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:23:48,799 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:23:48,800 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:23:48,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:23:48 BoogieIcfgContainer [2024-11-13 21:23:48,800 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:23:48,801 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:23:48,801 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:23:48,813 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:23:48,813 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:23:48" (1/1) ... [2024-11-13 21:23:48,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:23:48,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:23:48,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 13 states and 12 transitions. [2024-11-13 21:23:48,881 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2024-11-13 21:23:48,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-11-13 21:23:48,884 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:23:48,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:23:48,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:23:49,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:23:49,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:23:49,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 12 states and 11 transitions. [2024-11-13 21:23:49,134 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2024-11-13 21:23:49,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-13 21:23:49,135 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:23:49,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:23:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:23:49,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:23:49,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:23:49,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 11 states and 10 transitions. [2024-11-13 21:23:49,307 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2024-11-13 21:23:49,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 21:23:49,308 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:23:49,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:23:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:23:49,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:23:49,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:23:49,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 10 states and 9 transitions. [2024-11-13 21:23:49,654 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2024-11-13 21:23:49,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 21:23:49,654 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:23:49,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:23:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:23:49,677 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:23:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:23:49,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:23:49,746 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:23:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:23:49,762 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2024-11-13 21:23:49,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:23:49 ImpRootNode [2024-11-13 21:23:49,782 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:23:49,782 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:23:49,783 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:23:49,783 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:23:49,783 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:23:48" (3/4) ... [2024-11-13 21:23:49,784 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 21:23:49,845 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ab8c5d-b00a-40b0-bc0a-6bab9fe6675d/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 21:23:49,845 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:23:49,846 INFO L158 Benchmark]: Toolchain (without parser) took 1659.45ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 91.2MB in the end (delta: 1.8MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. [2024-11-13 21:23:49,847 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 83.9MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:23:49,847 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.57ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 82.8MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:23:49,847 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.82ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 81.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:23:49,848 INFO L158 Benchmark]: Boogie Preprocessor took 28.95ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.8MB in the end (delta: 788.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:23:49,848 INFO L158 Benchmark]: RCFGBuilder took 344.85ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 70.8MB in the end (delta: 10.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:23:49,850 INFO L158 Benchmark]: CodeCheck took 980.87ms. Allocated memory is still 117.4MB. Free memory was 70.8MB in the beginning and 37.9MB in the end (delta: 33.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 21:23:49,851 INFO L158 Benchmark]: Witness Printer took 63.07ms. Allocated memory is still 117.4MB. Free memory was 37.9MB in the beginning and 91.2MB in the end (delta: -53.4MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2024-11-13 21:23:49,853 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, 13 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 0 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 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: [L10] int* p = malloc(10 * sizeof(int)); [L12] CALL freePointer(p) [L6] free(p) [L6] free(p) [L6] free(p) [L12] RET freePointer(p) [L14] p[0] = 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 83.9MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.57ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 82.8MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.82ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 81.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.95ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.8MB in the end (delta: 788.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 344.85ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 70.8MB in the end (delta: 10.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 980.87ms. Allocated memory is still 117.4MB. Free memory was 70.8MB in the beginning and 37.9MB in the end (delta: 33.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 63.07ms. Allocated memory is still 117.4MB. Free memory was 37.9MB in the beginning and 91.2MB in the end (delta: -53.4MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 21:23:49,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ab8c5d-b00a-40b0-bc0a-6bab9fe6675d/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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)