./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/memsafety-bftpd/bftpd_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) 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_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/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_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-bftpd/bftpd_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/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-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7c883b81b24ce5a721aa9a1ff13aef8a0d532ba87d9e130e470a0b88a1f8e93e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:07:15,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:07:15,963 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-12-02 23:07:15,967 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:07:15,968 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:07:15,989 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:07:15,990 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:07:15,991 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:07:15,991 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:07:15,992 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:07:15,992 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:07:15,993 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:07:15,993 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:07:15,994 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:07:15,994 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:07:15,995 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 23:07:15,995 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 23:07:15,996 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:07:15,996 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:07:15,997 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 23:07:15,997 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:07:15,998 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:07:15,999 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:07:15,999 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:07:16,000 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:07:16,000 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:07:16,001 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:07:16,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:07:16,001 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:07:16,002 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:07:16,002 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:07:16,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:07:16,003 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_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c883b81b24ce5a721aa9a1ff13aef8a0d532ba87d9e130e470a0b88a1f8e93e [2023-12-02 23:07:16,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:07:16,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:07:16,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:07:16,227 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:07:16,228 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:07:16,229 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/memsafety-bftpd/bftpd_2.i [2023-12-02 23:07:18,991 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:07:19,239 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:07:19,240 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/sv-benchmarks/c/memsafety-bftpd/bftpd_2.i [2023-12-02 23:07:19,256 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/data/2245ae710/d5dbc85e437b467299458c1dbb0e187e/FLAGf2e2b4237 [2023-12-02 23:07:19,270 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/data/2245ae710/d5dbc85e437b467299458c1dbb0e187e [2023-12-02 23:07:19,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:07:19,274 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:07:19,276 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:07:19,276 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:07:19,281 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:07:19,281 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:07:19" (1/1) ... [2023-12-02 23:07:19,282 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a9dbea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:19, skipping insertion in model container [2023-12-02 23:07:19,282 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:07:19" (1/1) ... [2023-12-02 23:07:19,326 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:07:19,643 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:07:19,656 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:07:19,694 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:07:19,734 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:07:19,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:19 WrapperNode [2023-12-02 23:07:19,734 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:07:19,735 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:07:19,735 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:07:19,736 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:07:19,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:19" (1/1) ... [2023-12-02 23:07:19,757 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:19" (1/1) ... [2023-12-02 23:07:19,785 INFO L138 Inliner]: procedures = 168, calls = 42, calls flagged for inlining = 8, calls inlined = 14, statements flattened = 168 [2023-12-02 23:07:19,786 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:07:19,786 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:07:19,786 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:07:19,787 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:07:19,796 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:19" (1/1) ... [2023-12-02 23:07:19,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:19" (1/1) ... [2023-12-02 23:07:19,800 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:19" (1/1) ... [2023-12-02 23:07:19,800 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:19" (1/1) ... [2023-12-02 23:07:19,809 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:19" (1/1) ... [2023-12-02 23:07:19,813 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:19" (1/1) ... [2023-12-02 23:07:19,815 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:19" (1/1) ... [2023-12-02 23:07:19,817 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:19" (1/1) ... [2023-12-02 23:07:19,821 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:07:19,822 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:07:19,822 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:07:19,822 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:07:19,823 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:19" (1/1) ... [2023-12-02 23:07:19,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:07:19,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:07:19,855 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:07:19,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:07:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 23:07:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 23:07:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:07:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 23:07:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 23:07:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 23:07:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:07:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:07:19,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:07:20,011 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:07:20,013 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:07:20,233 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:07:20,403 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:07:20,403 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-02 23:07:20,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:07:20 BoogieIcfgContainer [2023-12-02 23:07:20,405 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:07:20,406 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:07:20,406 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:07:20,414 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:07:20,414 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:07:20" (1/1) ... [2023-12-02 23:07:20,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:07:20,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:20,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2023-12-02 23:07:20,467 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2023-12-02 23:07:20,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 23:07:20,470 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:20,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:07:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:20,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:07:20,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:20,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 20 states and 29 transitions. [2023-12-02 23:07:20,707 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 29 transitions. [2023-12-02 23:07:20,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 23:07:20,708 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:20,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:07:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:20,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:07:20,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:20,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 21 states and 31 transitions. [2023-12-02 23:07:20,808 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2023-12-02 23:07:20,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 23:07:20,808 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:20,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:07:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:20,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:07:20,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:20,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 22 states and 33 transitions. [2023-12-02 23:07:20,897 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2023-12-02 23:07:20,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 23:07:20,898 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:20,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:07:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:07:20,988 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 23:07:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:07:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:07:21,121 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 23:07:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:07:21,187 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2023-12-02 23:07:21,217 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem3 [2023-12-02 23:07:21,220 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-12-02 23:07:21,221 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem3 [2023-12-02 23:07:21,222 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-12-02 23:07:21,222 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem3 [2023-12-02 23:07:21,223 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-12-02 23:07:21,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 11:07:21 ImpRootNode [2023-12-02 23:07:21,229 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 23:07:21,230 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 23:07:21,230 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 23:07:21,230 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 23:07:21,230 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:07:20" (3/4) ... [2023-12-02 23:07:21,232 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 23:07:21,233 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 23:07:21,234 INFO L158 Benchmark]: Toolchain (without parser) took 1959.76ms. Allocated memory was 144.7MB in the beginning and 180.4MB in the end (delta: 35.7MB). Free memory was 112.9MB in the beginning and 82.9MB in the end (delta: 30.1MB). Peak memory consumption was 68.0MB. Max. memory is 16.1GB. [2023-12-02 23:07:21,235 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 111.1MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:07:21,235 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.97ms. Allocated memory is still 144.7MB. Free memory was 112.6MB in the beginning and 92.8MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-02 23:07:21,236 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.39ms. Allocated memory is still 144.7MB. Free memory was 92.8MB in the beginning and 90.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:07:21,237 INFO L158 Benchmark]: Boogie Preprocessor took 35.13ms. Allocated memory is still 144.7MB. Free memory was 90.4MB in the beginning and 88.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:07:21,237 INFO L158 Benchmark]: RCFGBuilder took 582.86ms. Allocated memory was 144.7MB in the beginning and 180.4MB in the end (delta: 35.7MB). Free memory was 88.7MB in the beginning and 145.8MB in the end (delta: -57.1MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2023-12-02 23:07:21,238 INFO L158 Benchmark]: CodeCheck took 823.06ms. Allocated memory is still 180.4MB. Free memory was 145.8MB in the beginning and 83.9MB in the end (delta: 61.9MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2023-12-02 23:07:21,238 INFO L158 Benchmark]: Witness Printer took 3.92ms. Allocated memory is still 180.4MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:07:21,241 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, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 33 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 215 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 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 - UnprovableResult [Line: 721]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of strcmp at line 693. Possible FailurePath: [L685] int state = STATE_1; [L686] char *global = 0; [L687-L690] const struct command commands[] = { {"c1",c1,STATE_1}, {"c2",c2,STATE_2} }; [L722] CALL parse_input("c1") [L692] int i = 0; VAL [commands={6:0}, global={0:0}, i=0, input={3:0}, input={3:0}, state=0] [L692] COND TRUE i < 2 [L693] EXPR commands[i].name VAL [commands={6:0}, global={0:0}, i=0, input={3:0}, input={3:0}, state=0] [L693] COND TRUE strcmp(commands[i].name,input) == 0 [L694] EXPR commands[i].state_needed VAL [commands={6:0}, global={0:0}, i=0, input={3:0}, input={3:0}, state=0] [L694] COND TRUE state >= commands[i].state_needed [L695] EXPR commands[i].function [L695] CALL commands[i].function() [L702] char *x = (char *)malloc(sizeof(char)); [L703] COND FALSE !(!x) [L706] COND FALSE !(\read(*global)) [L709] global = x [L710] state = STATE_2 [L695] RET commands[i].function() [L722] RET parse_input("c1") [L723] CALL parse_input("c1") [L692] int i = 0; VAL [commands={6:0}, global={31899:0}, i=0, input={4:0}, input={4:0}, state=1] [L692] COND TRUE i < 2 [L693] EXPR commands[i].name VAL [commands={6:0}, global={31899:0}, i=0, input={4:0}, input={4:0}, state=1] [L693] COND TRUE strcmp(commands[i].name,input) == 0 [L694] EXPR commands[i].state_needed VAL [commands={6:0}, global={31899:0}, i=0, input={4:0}, input={4:0}, state=1] [L694] COND TRUE state >= commands[i].state_needed [L695] EXPR commands[i].function [L695] CALL commands[i].function() [L702] char *x = (char *)malloc(sizeof(char)); [L703] COND FALSE !(!x) [L706] COND TRUE \read(*global) [L709] global = x [L710] state = STATE_2 [L695] RET commands[i].function() [L723] RET parse_input("c1") [L724] CALL parse_input("c2") [L692] int i = 0; VAL [commands={6:0}, global={-20538:0}, i=0, input={5:0}, input={5:0}, state=1] [L692] COND TRUE i < 2 [L693] EXPR commands[i].name VAL [commands={6:0}, global={-20538:0}, i=0, input={5:0}, input={5:0}, state=1] [L693] COND TRUE strcmp(commands[i].name,input) == 0 [L694] EXPR commands[i].state_needed VAL [commands={6:0}, global={-20538:0}, i=0, input={5:0}, input={5:0}, state=1] [L694] COND TRUE state >= commands[i].state_needed [L695] EXPR commands[i].function [L695] CALL commands[i].function() [L702] char *x = (char *)malloc(sizeof(char)); [L703] COND FALSE !(!x) [L706] COND TRUE \read(*global) [L709] global = x [L710] state = STATE_2 [L695] RET commands[i].function() [L724] RET parse_input("c2") [L725] return 0; VAL [\result=0, commands={6:0}, global={7:0}, state=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 111.1MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 458.97ms. Allocated memory is still 144.7MB. Free memory was 112.6MB in the beginning and 92.8MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.39ms. Allocated memory is still 144.7MB. Free memory was 92.8MB in the beginning and 90.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.13ms. Allocated memory is still 144.7MB. Free memory was 90.4MB in the beginning and 88.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 582.86ms. Allocated memory was 144.7MB in the beginning and 180.4MB in the end (delta: 35.7MB). Free memory was 88.7MB in the beginning and 145.8MB in the end (delta: -57.1MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. * CodeCheck took 823.06ms. Allocated memory is still 180.4MB. Free memory was 145.8MB in the beginning and 83.9MB in the end (delta: 61.9MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Witness Printer took 3.92ms. Allocated memory is still 180.4MB. Free memory is still 82.9MB. 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~mem3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 23:07:21,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/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_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-bftpd/bftpd_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/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-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7c883b81b24ce5a721aa9a1ff13aef8a0d532ba87d9e130e470a0b88a1f8e93e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:07:23,175 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:07:23,243 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf [2023-12-02 23:07:23,274 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:07:23,275 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:07:23,276 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:07:23,277 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:07:23,277 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:07:23,278 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:07:23,278 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:07:23,279 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:07:23,279 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:07:23,280 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:07:23,280 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 23:07:23,280 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 23:07:23,281 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:07:23,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:07:23,282 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 23:07:23,282 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 23:07:23,283 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 23:07:23,283 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 23:07:23,284 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:07:23,285 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:07:23,285 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:07:23,285 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:07:23,286 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:07:23,286 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:07:23,287 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:07:23,287 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 23:07:23,287 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:07:23,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:07:23,288 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:07:23,289 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:07:23,289 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 23:07:23,289 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:07:23,290 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 23:07:23,290 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 23:07:23,290 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c883b81b24ce5a721aa9a1ff13aef8a0d532ba87d9e130e470a0b88a1f8e93e [2023-12-02 23:07:23,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:07:23,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:07:23,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:07:23,608 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:07:23,608 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:07:23,610 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/memsafety-bftpd/bftpd_2.i [2023-12-02 23:07:26,403 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:07:26,658 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:07:26,659 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/sv-benchmarks/c/memsafety-bftpd/bftpd_2.i [2023-12-02 23:07:26,675 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/data/2d66da87d/4668be41eb5641dda4d2aaf0e1a6f2f3/FLAG574e0271f [2023-12-02 23:07:26,689 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/data/2d66da87d/4668be41eb5641dda4d2aaf0e1a6f2f3 [2023-12-02 23:07:26,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:07:26,692 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:07:26,694 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:07:26,694 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:07:26,699 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:07:26,700 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:07:26" (1/1) ... [2023-12-02 23:07:26,701 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dc4c7b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:26, skipping insertion in model container [2023-12-02 23:07:26,701 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:07:26" (1/1) ... [2023-12-02 23:07:26,751 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:07:27,039 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:07:27,054 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:07:27,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:07:27,174 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:07:27,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:27 WrapperNode [2023-12-02 23:07:27,174 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:07:27,176 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:07:27,176 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:07:27,176 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:07:27,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:27" (1/1) ... [2023-12-02 23:07:27,214 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:27" (1/1) ... [2023-12-02 23:07:27,240 INFO L138 Inliner]: procedures = 169, calls = 42, calls flagged for inlining = 8, calls inlined = 14, statements flattened = 169 [2023-12-02 23:07:27,241 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:07:27,241 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:07:27,241 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:07:27,242 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:07:27,249 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:27" (1/1) ... [2023-12-02 23:07:27,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:27" (1/1) ... [2023-12-02 23:07:27,254 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:27" (1/1) ... [2023-12-02 23:07:27,254 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:27" (1/1) ... [2023-12-02 23:07:27,264 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:27" (1/1) ... [2023-12-02 23:07:27,268 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:27" (1/1) ... [2023-12-02 23:07:27,271 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:27" (1/1) ... [2023-12-02 23:07:27,273 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:27" (1/1) ... [2023-12-02 23:07:27,278 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:07:27,279 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:07:27,279 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:07:27,279 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:07:27,280 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:27" (1/1) ... [2023-12-02 23:07:27,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:07:27,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:07:27,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:07:27,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:07:27,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 23:07:27,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 23:07:27,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:07:27,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 23:07:27,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 23:07:27,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 23:07:27,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 23:07:27,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:07:27,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:07:27,469 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:07:27,473 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:07:27,771 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:07:27,909 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:07:27,910 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-02 23:07:27,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:07:27 BoogieIcfgContainer [2023-12-02 23:07:27,911 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:07:27,912 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:07:27,913 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:07:27,920 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:07:27,921 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:07:27" (1/1) ... [2023-12-02 23:07:27,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:07:27,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:27,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2023-12-02 23:07:27,973 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2023-12-02 23:07:27,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 23:07:27,975 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:27,975 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:07:27,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:07:28,016 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:07:28,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 23:07:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:28,124 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:07:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:28,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 23:07:28,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:07:28,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:07:28,218 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 23:07:28,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 23:07:28,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:28,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 26 states and 42 transitions. [2023-12-02 23:07:28,305 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 42 transitions. [2023-12-02 23:07:28,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 23:07:28,306 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:28,306 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:07:28,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:07:28,307 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:07:28,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 23:07:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:28,421 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:07:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:28,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 23:07:28,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:07:28,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:07:28,478 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 23:07:28,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 23:07:28,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:28,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 44 transitions. [2023-12-02 23:07:28,555 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 44 transitions. [2023-12-02 23:07:28,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 23:07:28,555 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:28,555 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:07:28,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:07:28,557 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:07:28,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 23:07:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:28,692 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:07:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:28,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 23:07:28,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:07:28,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:07:28,744 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 23:07:28,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 23:07:28,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:28,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 28 states and 46 transitions. [2023-12-02 23:07:28,814 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 46 transitions. [2023-12-02 23:07:28,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 23:07:28,814 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:28,815 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:07:28,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:07:28,816 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:07:28,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 23:07:28,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:28,968 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:07:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:29,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 23:07:29,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:07:29,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:07:29,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-02 23:07:29,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:29,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 29 states and 48 transitions. [2023-12-02 23:07:29,050 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2023-12-02 23:07:29,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 23:07:29,051 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:29,051 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:07:29,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:07:29,052 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:07:29,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 23:07:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:29,192 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:07:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:29,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 23:07:29,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:07:29,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:07:29,248 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 23:07:29,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-02 23:07:29,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:29,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 30 states and 50 transitions. [2023-12-02 23:07:29,277 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 50 transitions. [2023-12-02 23:07:29,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 23:07:29,280 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:29,280 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:07:29,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:07:29,282 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:07:29,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 23:07:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:07:29,691 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 23:07:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:07:30,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:07:30,301 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 23:07:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:07:30,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 23:07:30,496 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2023-12-02 23:07:30,526 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem3 [2023-12-02 23:07:30,530 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-12-02 23:07:30,530 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem3 [2023-12-02 23:07:30,531 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-12-02 23:07:30,532 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem3 [2023-12-02 23:07:30,532 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-12-02 23:07:30,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 11:07:30 ImpRootNode [2023-12-02 23:07:30,538 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 23:07:30,539 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 23:07:30,539 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 23:07:30,539 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 23:07:30,540 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:07:27" (3/4) ... [2023-12-02 23:07:30,542 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 23:07:30,543 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 23:07:30,544 INFO L158 Benchmark]: Toolchain (without parser) took 3851.33ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 67.0MB in the beginning and 45.0MB in the end (delta: 22.1MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2023-12-02 23:07:30,544 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 69.2MB. Free memory is still 45.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:07:30,545 INFO L158 Benchmark]: CACSL2BoogieTranslator took 481.04ms. Allocated memory is still 92.3MB. Free memory was 66.8MB in the beginning and 65.8MB in the end (delta: 964.4kB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2023-12-02 23:07:30,546 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.04ms. Allocated memory is still 92.3MB. Free memory was 65.8MB in the beginning and 63.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:07:30,546 INFO L158 Benchmark]: Boogie Preprocessor took 37.06ms. Allocated memory is still 92.3MB. Free memory was 63.3MB in the beginning and 61.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:07:30,547 INFO L158 Benchmark]: RCFGBuilder took 632.50ms. Allocated memory is still 92.3MB. Free memory was 61.2MB in the beginning and 48.3MB in the end (delta: 12.9MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2023-12-02 23:07:30,548 INFO L158 Benchmark]: CodeCheck took 2625.89ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 48.3MB in the beginning and 45.0MB in the end (delta: 3.3MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2023-12-02 23:07:30,548 INFO L158 Benchmark]: Witness Printer took 4.10ms. Allocated memory is still 111.1MB. Free memory is still 45.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:07:30,552 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, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 162 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 60 mSDsluCounter, 144 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 165 IncrementalHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 84 mSDtfsCounter, 165 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 446 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 69 SizeOfPredicates, 0 NumberOfNonLiveVariables, 394 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - UnprovableResult [Line: 721]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of strcmp at line 693. Possible FailurePath: [L685] int state = STATE_1; [L686] char *global = 0; [L687-L690] const struct command commands[] = { {"c1",c1,STATE_1}, {"c2",c2,STATE_2} }; [L722] CALL parse_input("c1") [L692] int i = 0; VAL [commands={6:0}, global={0:0}, i=0, input={3:0}, input={3:0}, state=0] [L692] COND TRUE i < 2 [L693] EXPR commands[i].name VAL [commands={6:0}, global={0:0}, i=0, input={3:0}, input={3:0}, state=0] [L693] COND TRUE strcmp(commands[i].name,input) == 0 [L694] EXPR commands[i].state_needed VAL [commands={6:0}, global={0:0}, i=0, input={3:0}, input={3:0}, state=0] [L694] COND TRUE state >= commands[i].state_needed [L695] EXPR commands[i].function [L695] CALL commands[i].function() [L702] char *x = (char *)malloc(sizeof(char)); [L703] COND FALSE !(!x) [L706] COND FALSE !(\read(*global)) [L709] global = x [L710] state = STATE_2 [L695] RET commands[i].function() [L722] RET parse_input("c1") [L723] CALL parse_input("c1") [L692] int i = 0; VAL [commands={6:0}, global={2052:0}, i=0, input={4:0}, input={4:0}, state=1] [L692] COND TRUE i < 2 [L693] EXPR commands[i].name VAL [commands={6:0}, global={2052:0}, i=0, input={4:0}, input={4:0}, state=1] [L693] COND TRUE strcmp(commands[i].name,input) == 0 [L694] EXPR commands[i].state_needed VAL [commands={6:0}, global={2052:0}, i=0, input={4:0}, input={4:0}, state=1] [L694] COND TRUE state >= commands[i].state_needed [L695] EXPR commands[i].function [L695] CALL commands[i].function() [L702] char *x = (char *)malloc(sizeof(char)); [L703] COND FALSE !(!x) [L706] COND TRUE \read(*global) [L709] global = x [L710] state = STATE_2 [L695] RET commands[i].function() [L723] RET parse_input("c1") [L724] CALL parse_input("c2") [L692] int i = 0; VAL [commands={6:0}, global={32776:0}, i=0, input={5:0}, input={5:0}, state=1] [L692] COND TRUE i < 2 [L693] EXPR commands[i].name VAL [commands={6:0}, global={32776:0}, i=0, input={5:0}, input={5:0}, state=1] [L693] COND TRUE strcmp(commands[i].name,input) == 0 [L694] EXPR commands[i].state_needed VAL [commands={6:0}, global={32776:0}, i=0, input={5:0}, input={5:0}, state=1] [L694] COND TRUE state >= commands[i].state_needed [L695] EXPR commands[i].function [L695] CALL commands[i].function() [L702] char *x = (char *)malloc(sizeof(char)); [L703] COND FALSE !(!x) [L706] COND TRUE \read(*global) [L709] global = x [L710] state = STATE_2 [L695] RET commands[i].function() [L724] RET parse_input("c2") [L725] return 0; VAL [\result=0, commands={6:0}, global={8:0}, state=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 69.2MB. Free memory is still 45.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 481.04ms. Allocated memory is still 92.3MB. Free memory was 66.8MB in the beginning and 65.8MB in the end (delta: 964.4kB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.04ms. Allocated memory is still 92.3MB. Free memory was 65.8MB in the beginning and 63.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.06ms. Allocated memory is still 92.3MB. Free memory was 63.3MB in the beginning and 61.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 632.50ms. Allocated memory is still 92.3MB. Free memory was 61.2MB in the beginning and 48.3MB in the end (delta: 12.9MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * CodeCheck took 2625.89ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 48.3MB in the beginning and 45.0MB in the end (delta: 3.3MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. * Witness Printer took 4.10ms. Allocated memory is still 111.1MB. Free memory is still 45.0MB. 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~mem3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 23:07:30,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d241ee1f-16db-4a25-9acb-0c1c1ab4a8e7/bin/ukojak-verify-Qdu7aM0XO9/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 Result: UNKNOWN: Overapproximated counterexample