./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782779fe-3d14-4f8b-8629-a74c3a77544a/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782779fe-3d14-4f8b-8629-a74c3a77544a/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_782779fe-3d14-4f8b-8629-a74c3a77544a/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782779fe-3d14-4f8b-8629-a74c3a77544a/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782779fe-3d14-4f8b-8629-a74c3a77544a/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782779fe-3d14-4f8b-8629-a74c3a77544a/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 22:52:34,363 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 22:52:34,428 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782779fe-3d14-4f8b-8629-a74c3a77544a/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-12-02 22:52:34,432 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 22:52:34,433 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 22:52:34,454 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 22:52:34,455 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 22:52:34,456 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 22:52:34,457 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 22:52:34,457 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 22:52:34,458 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 22:52:34,458 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 22:52:34,459 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 22:52:34,459 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 22:52:34,460 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 22:52:34,460 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-02 22:52:34,461 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 22:52:34,461 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 22:52:34,462 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 22:52:34,462 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 22:52:34,463 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 22:52:34,465 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 22:52:34,465 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 22:52:34,466 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 22:52:34,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:52:34,467 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 22:52:34,467 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 22:52:34,468 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 22:52:34,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 22:52:34,468 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_782779fe-3d14-4f8b-8629-a74c3a77544a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782779fe-3d14-4f8b-8629-a74c3a77544a/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa [2023-12-02 22:52:34,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 22:52:34,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 22:52:34,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 22:52:34,710 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 22:52:34,711 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 22:52:34,712 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782779fe-3d14-4f8b-8629-a74c3a77544a/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2023-12-02 22:52:37,480 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 22:52:37,700 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 22:52:37,700 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782779fe-3d14-4f8b-8629-a74c3a77544a/sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2023-12-02 22:52:37,715 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782779fe-3d14-4f8b-8629-a74c3a77544a/bin/ukojak-verify-Qdu7aM0XO9/data/f3764dfee/5b8d981496124f568959754a15bd8240/FLAG4f90eba77 [2023-12-02 22:52:37,729 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782779fe-3d14-4f8b-8629-a74c3a77544a/bin/ukojak-verify-Qdu7aM0XO9/data/f3764dfee/5b8d981496124f568959754a15bd8240 [2023-12-02 22:52:37,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 22:52:37,732 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 22:52:37,734 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 22:52:37,734 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 22:52:37,737 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 22:52:37,738 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:52:37" (1/1) ... [2023-12-02 22:52:37,739 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39a6a5ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:37, skipping insertion in model container [2023-12-02 22:52:37,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:52:37" (1/1) ... [2023-12-02 22:52:37,790 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:52:38,099 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:52:38,115 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 22:52:38,168 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:52:38,202 WARN L675 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:52:38,208 INFO L206 MainTranslator]: Completed translation [2023-12-02 22:52:38,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:38 WrapperNode [2023-12-02 22:52:38,208 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 22:52:38,209 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 22:52:38,209 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 22:52:38,210 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 22:52:38,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:38" (1/1) ... [2023-12-02 22:52:38,235 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:38" (1/1) ... [2023-12-02 22:52:38,255 INFO L138 Inliner]: procedures = 169, calls = 73, calls flagged for inlining = 33, calls inlined = 8, statements flattened = 48 [2023-12-02 22:52:38,255 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 22:52:38,256 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 22:52:38,256 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 22:52:38,256 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 22:52:38,263 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:38" (1/1) ... [2023-12-02 22:52:38,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:38" (1/1) ... [2023-12-02 22:52:38,266 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:38" (1/1) ... [2023-12-02 22:52:38,266 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:38" (1/1) ... [2023-12-02 22:52:38,273 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:38" (1/1) ... [2023-12-02 22:52:38,275 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:38" (1/1) ... [2023-12-02 22:52:38,276 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:38" (1/1) ... [2023-12-02 22:52:38,278 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:38" (1/1) ... [2023-12-02 22:52:38,280 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 22:52:38,281 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 22:52:38,281 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 22:52:38,281 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 22:52:38,282 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:38" (1/1) ... [2023-12-02 22:52:38,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:52:38,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782779fe-3d14-4f8b-8629-a74c3a77544a/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 22:52:38,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782779fe-3d14-4f8b-8629-a74c3a77544a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 22:52:38,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782779fe-3d14-4f8b-8629-a74c3a77544a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 22:52:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 22:52:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 22:52:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 22:52:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 22:52:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 22:52:38,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 22:52:38,464 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 22:52:38,466 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 22:52:38,579 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 22:52:38,671 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 22:52:38,671 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 22:52:38,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:52:38 BoogieIcfgContainer [2023-12-02 22:52:38,673 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 22:52:38,674 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 22:52:38,674 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 22:52:38,684 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 22:52:38,685 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:52:38" (1/1) ... [2023-12-02 22:52:38,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 22:52:38,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:52:38,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-12-02 22:52:38,740 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-12-02 22:52:38,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 22:52:38,742 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:52:38,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:52:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:52:39,177 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 22:52:39,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:52:39,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-12-02 22:52:39,227 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-12-02 22:52:39,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 22:52:39,228 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:52:39,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:52:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:52:39,351 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 22:52:39,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:52:39,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2023-12-02 22:52:39,566 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2023-12-02 22:52:39,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 22:52:39,566 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:52:39,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:52:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:52:39,656 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 22:52:39,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:52:39,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-12-02 22:52:39,895 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-12-02 22:52:39,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 22:52:39,896 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:52:39,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:52:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:52:40,030 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 22:52:40,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:52:40,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-12-02 22:52:40,544 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-12-02 22:52:40,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 22:52:40,545 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:52:40,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:52:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:52:40,747 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 22:52:41,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:52:41,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-12-02 22:52:41,440 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-12-02 22:52:41,441 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 22:52:41,441 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2023-12-02 22:52:41,449 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-12-02 22:52:41,489 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 22:52:41,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 10:52:41 ImpRootNode [2023-12-02 22:52:41,494 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 22:52:41,494 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 22:52:41,494 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 22:52:41,494 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 22:52:41,495 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:52:38" (3/4) ... [2023-12-02 22:52:41,496 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 22:52:41,503 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-12-02 22:52:41,503 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-12-02 22:52:41,503 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-12-02 22:52:41,578 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782779fe-3d14-4f8b-8629-a74c3a77544a/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-02 22:52:41,579 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782779fe-3d14-4f8b-8629-a74c3a77544a/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-02 22:52:41,579 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 22:52:41,580 INFO L158 Benchmark]: Toolchain (without parser) took 3847.51ms. Allocated memory was 157.3MB in the beginning and 209.7MB in the end (delta: 52.4MB). Free memory was 112.1MB in the beginning and 148.4MB in the end (delta: -36.2MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2023-12-02 22:52:41,580 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 96.5MB. Free memory is still 45.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:52:41,581 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.00ms. Allocated memory is still 157.3MB. Free memory was 111.7MB in the beginning and 89.5MB in the end (delta: 22.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-02 22:52:41,582 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.78ms. Allocated memory is still 157.3MB. Free memory was 89.5MB in the beginning and 87.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 22:52:41,582 INFO L158 Benchmark]: Boogie Preprocessor took 24.59ms. Allocated memory is still 157.3MB. Free memory was 87.4MB in the beginning and 85.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 22:52:41,583 INFO L158 Benchmark]: RCFGBuilder took 392.17ms. Allocated memory was 157.3MB in the beginning and 209.7MB in the end (delta: 52.4MB). Free memory was 85.7MB in the beginning and 174.6MB in the end (delta: -88.9MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2023-12-02 22:52:41,583 INFO L158 Benchmark]: CodeCheck took 2819.75ms. Allocated memory is still 209.7MB. Free memory was 174.6MB in the beginning and 152.5MB in the end (delta: 22.1MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2023-12-02 22:52:41,584 INFO L158 Benchmark]: Witness Printer took 85.15ms. Allocated memory is still 209.7MB. Free memory was 152.5MB in the beginning and 148.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 22:52:41,586 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, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 78 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 203 IncrementalHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 78 mSolverCounterUnsat, 0 mSDtfsCounter, 203 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 181 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 941 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 114 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 - PositiveResult [Line: 781]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 781]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 781]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 789]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 96.5MB. Free memory is still 45.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 475.00ms. Allocated memory is still 157.3MB. Free memory was 111.7MB in the beginning and 89.5MB in the end (delta: 22.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.78ms. Allocated memory is still 157.3MB. Free memory was 89.5MB in the beginning and 87.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.59ms. Allocated memory is still 157.3MB. Free memory was 87.4MB in the beginning and 85.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 392.17ms. Allocated memory was 157.3MB in the beginning and 209.7MB in the end (delta: 52.4MB). Free memory was 85.7MB in the beginning and 174.6MB in the end (delta: -88.9MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * CodeCheck took 2819.75ms. Allocated memory is still 209.7MB. Free memory was 174.6MB in the beginning and 152.5MB in the end (delta: 22.1MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * Witness Printer took 85.15ms. Allocated memory is still 209.7MB. Free memory was 152.5MB in the beginning and 148.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-02 22:52:41,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782779fe-3d14-4f8b-8629-a74c3a77544a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE