./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b61b192-81d6-4aae-a460-228104156ab8/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b61b192-81d6-4aae-a460-228104156ab8/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b61b192-81d6-4aae-a460-228104156ab8/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b61b192-81d6-4aae-a460-228104156ab8/bin/ukojak-verify-ImItNfHLgk/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b61b192-81d6-4aae-a460-228104156ab8/bin/ukojak-verify-ImItNfHLgk/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b61b192-81d6-4aae-a460-228104156ab8/bin/ukojak-verify-ImItNfHLgk --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 428ed4ebbacd235ea719e6f888a7e28edd9cc4f57416ea2a11ce399dc2c47283 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:52:14,941 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:52:15,036 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b61b192-81d6-4aae-a460-228104156ab8/bin/ukojak-verify-ImItNfHLgk/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-11-08 23:52:15,043 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:52:15,046 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 23:52:15,084 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:52:15,085 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:52:15,086 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:52:15,086 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:52:15,086 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:52:15,088 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:52:15,089 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:52:15,090 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:52:15,092 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 23:52:15,093 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 23:52:15,093 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 23:52:15,094 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:52:15,094 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:52:15,094 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:52:15,094 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:52:15,099 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:52:15,100 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:52:15,100 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:52:15,100 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:52:15,101 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:52:15,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:52:15,101 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:52:15,102 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:52:15,102 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 23:52:15,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:52:15,102 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_3b61b192-81d6-4aae-a460-228104156ab8/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b61b192-81d6-4aae-a460-228104156ab8/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 428ed4ebbacd235ea719e6f888a7e28edd9cc4f57416ea2a11ce399dc2c47283 [2024-11-08 23:52:15,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:52:15,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:52:15,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:52:15,413 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:52:15,414 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:52:15,416 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b61b192-81d6-4aae-a460-228104156ab8/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/ldv-memsafety/memleaks_test8_2.i Unable to find full path for "g++" [2024-11-08 23:52:17,522 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:52:17,784 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:52:17,784 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b61b192-81d6-4aae-a460-228104156ab8/sv-benchmarks/c/ldv-memsafety/memleaks_test8_2.i [2024-11-08 23:52:17,802 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b61b192-81d6-4aae-a460-228104156ab8/bin/ukojak-verify-ImItNfHLgk/data/96b2f9898/8e962b175d77450f96a67fea658671ca/FLAGb9813ae90 [2024-11-08 23:52:17,834 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b61b192-81d6-4aae-a460-228104156ab8/bin/ukojak-verify-ImItNfHLgk/data/96b2f9898/8e962b175d77450f96a67fea658671ca [2024-11-08 23:52:17,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:52:17,838 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:52:17,839 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:52:17,839 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:52:17,844 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:52:17,844 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:52:17" (1/1) ... [2024-11-08 23:52:17,845 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ce45fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:52:17, skipping insertion in model container [2024-11-08 23:52:17,845 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:52:17" (1/1) ... [2024-11-08 23:52:17,906 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:52:18,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:52:18,474 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:52:18,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:52:18,643 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:52:18,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:52:18 WrapperNode [2024-11-08 23:52:18,645 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:52:18,648 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:52:18,648 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:52:18,648 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:52:18,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:52:18" (1/1) ... [2024-11-08 23:52:18,687 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:52:18" (1/1) ... [2024-11-08 23:52:18,722 INFO L138 Inliner]: procedures = 166, calls = 72, calls flagged for inlining = 32, calls inlined = 7, statements flattened = 40 [2024-11-08 23:52:18,722 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:52:18,724 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:52:18,724 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:52:18,724 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:52:18,735 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:52:18" (1/1) ... [2024-11-08 23:52:18,736 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:52:18" (1/1) ... [2024-11-08 23:52:18,738 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:52:18" (1/1) ... [2024-11-08 23:52:18,742 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:52:18" (1/1) ... [2024-11-08 23:52:18,751 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:52:18" (1/1) ... [2024-11-08 23:52:18,753 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:52:18" (1/1) ... [2024-11-08 23:52:18,758 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:52:18" (1/1) ... [2024-11-08 23:52:18,759 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:52:18" (1/1) ... [2024-11-08 23:52:18,764 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:52:18,765 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:52:18,766 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:52:18,767 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:52:18,768 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:52:18" (1/1) ... [2024-11-08 23:52:18,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:52:18,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b61b192-81d6-4aae-a460-228104156ab8/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:52:18,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b61b192-81d6-4aae-a460-228104156ab8/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:52:18,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b61b192-81d6-4aae-a460-228104156ab8/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:52:18,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 23:52:18,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:52:18,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 23:52:18,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-08 23:52:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:52:18,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:52:19,003 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:52:19,006 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:52:19,119 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-08 23:52:19,119 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:52:19,167 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:52:19,168 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:52:19,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:52:19 BoogieIcfgContainer [2024-11-08 23:52:19,168 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:52:19,169 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:52:19,169 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:52:19,184 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:52:19,184 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:52:19" (1/1) ... [2024-11-08 23:52:19,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:52:19,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:52:19,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 20 states and 21 transitions. [2024-11-08 23:52:19,259 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2024-11-08 23:52:19,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-08 23:52:19,261 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:52:19,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:52:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:52:19,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:52:19,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:52:19,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 19 states and 20 transitions. [2024-11-08 23:52:19,594 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2024-11-08 23:52:19,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-08 23:52:19,595 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:52:19,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:52:19,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:52:19,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:52:20,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:52:20,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 18 states and 19 transitions. [2024-11-08 23:52:20,031 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2024-11-08 23:52:20,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-08 23:52:20,031 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:52:20,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:52:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:52:20,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:52:20,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:52:20,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 20 states and 21 transitions. [2024-11-08 23:52:20,129 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2024-11-08 23:52:20,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-08 23:52:20,130 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:52:20,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:52:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:52:20,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:52:20,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:52:20,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 19 states and 20 transitions. [2024-11-08 23:52:20,639 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2024-11-08 23:52:20,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-08 23:52:20,640 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:52:20,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:52:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:52:20,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:52:21,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:52:21,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 23 states and 25 transitions. [2024-11-08 23:52:21,122 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2024-11-08 23:52:21,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:52:21,122 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:52:21,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:52:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:52:21,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:52:21,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:52:21,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 22 states and 24 transitions. [2024-11-08 23:52:21,425 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2024-11-08 23:52:21,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 23:52:21,426 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:52:21,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:52:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:52:21,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:52:21,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:52:21,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2024-11-08 23:52:21,840 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2024-11-08 23:52:21,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 23:52:21,841 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:52:21,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:52:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:52:21,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:52:22,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:52:22,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2024-11-08 23:52:22,056 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2024-11-08 23:52:22,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-08 23:52:22,057 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:52:22,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:52:22,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:52:22,084 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:52:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:52:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:52:22,143 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:52:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:52:22,176 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2024-11-08 23:52:22,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:52:22 ImpRootNode [2024-11-08 23:52:22,215 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:52:22,216 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:52:22,216 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:52:22,217 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:52:22,217 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:52:19" (3/4) ... [2024-11-08 23:52:22,219 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-08 23:52:22,271 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b61b192-81d6-4aae-a460-228104156ab8/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 23:52:22,274 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:52:22,275 INFO L158 Benchmark]: Toolchain (without parser) took 4437.50ms. Allocated memory is still 155.2MB. Free memory was 117.4MB in the beginning and 111.4MB in the end (delta: 6.0MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2024-11-08 23:52:22,275 INFO L158 Benchmark]: CDTParser took 0.65ms. Allocated memory is still 121.6MB. Free memory is still 71.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:52:22,279 INFO L158 Benchmark]: CACSL2BoogieTranslator took 807.89ms. Allocated memory is still 155.2MB. Free memory was 117.4MB in the beginning and 92.9MB in the end (delta: 24.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 23:52:22,280 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.95ms. Allocated memory is still 155.2MB. Free memory was 92.9MB in the beginning and 90.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:52:22,281 INFO L158 Benchmark]: Boogie Preprocessor took 40.83ms. Allocated memory is still 155.2MB. Free memory was 90.8MB in the beginning and 89.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:52:22,281 INFO L158 Benchmark]: RCFGBuilder took 403.24ms. Allocated memory is still 155.2MB. Free memory was 89.2MB in the beginning and 116.7MB in the end (delta: -27.5MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2024-11-08 23:52:22,281 INFO L158 Benchmark]: CodeCheck took 3046.35ms. Allocated memory is still 155.2MB. Free memory was 116.7MB in the beginning and 113.4MB in the end (delta: 3.3MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2024-11-08 23:52:22,282 INFO L158 Benchmark]: Witness Printer took 58.23ms. Allocated memory is still 155.2MB. Free memory was 113.4MB in the beginning and 111.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:52:22,285 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, 20 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 187 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 167 mSDsluCounter, 68 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 136 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 433 IncrementalHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 136 mSolverCounterUnsat, 24 mSDtfsCounter, 433 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 354 GetRequests, 286 SyntacticMatches, 10 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1515 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 158 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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: 762]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L757] int *a8; [L771] CALL entry_point() [L765] CALL alloc_8() [L759] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L759] RET, EXPR ldv_malloc(sizeof(int)) [L759] a8 = (int *)ldv_malloc(sizeof(int)) [L765] RET alloc_8() [L766] CALL free_8() [L762] COND TRUE \read(*a8) VAL [a8={24517:0}, ldv_global_msg_list={1:0}] [L762] free(a8) VAL [a8={24517:0}, ldv_global_msg_list={1:0}] [L762] free(a8) VAL [a8={24517:0}, ldv_global_msg_list={1:0}] [L762] free(a8) [L766] RET free_8() [L767] CALL free_8() [L762] COND TRUE \read(*a8) VAL [a8={24517:0}, ldv_global_msg_list={1:0}] [L762] free(a8) VAL [a8={24517:0}, ldv_global_msg_list={1:0}] [L762] free(a8) VAL [a8={24517:0}, ldv_global_msg_list={1:0}] [L762] free(a8) VAL [a8={24517:0}, ldv_global_msg_list={1:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65ms. Allocated memory is still 121.6MB. Free memory is still 71.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 807.89ms. Allocated memory is still 155.2MB. Free memory was 117.4MB in the beginning and 92.9MB in the end (delta: 24.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.95ms. Allocated memory is still 155.2MB. Free memory was 92.9MB in the beginning and 90.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.83ms. Allocated memory is still 155.2MB. Free memory was 90.8MB in the beginning and 89.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 403.24ms. Allocated memory is still 155.2MB. Free memory was 89.2MB in the beginning and 116.7MB in the end (delta: -27.5MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * CodeCheck took 3046.35ms. Allocated memory is still 155.2MB. Free memory was 116.7MB in the beginning and 113.4MB in the end (delta: 3.3MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. * Witness Printer took 58.23ms. Allocated memory is still 155.2MB. Free memory was 113.4MB in the beginning and 111.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-08 23:52:22,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b61b192-81d6-4aae-a460-228104156ab8/bin/ukojak-verify-ImItNfHLgk/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-free)