./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc 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_01bbaeac-415f-47ae-821b-3d6624e6760d/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01bbaeac-415f-47ae-821b-3d6624e6760d/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_01bbaeac-415f-47ae-821b-3d6624e6760d/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01bbaeac-415f-47ae-821b-3d6624e6760d/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01bbaeac-415f-47ae-821b-3d6624e6760d/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01bbaeac-415f-47ae-821b-3d6624e6760d/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 64bit --witnessprinter.graph.data.programhash 33d006375056e7e3c58d58b776bed0fedce081ec4ff9e691f038a741177fe7dd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:08:08,729 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:08:08,793 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01bbaeac-415f-47ae-821b-3d6624e6760d/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2023-12-02 23:08:08,797 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:08:08,798 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:08:08,820 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:08:08,821 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:08:08,821 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:08:08,822 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:08:08,823 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:08:08,823 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:08:08,824 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 23:08:08,824 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 23:08:08,825 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-02 23:08:08,825 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:08:08,826 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 23:08:08,826 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:08:08,827 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:08:08,827 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:08:08,828 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:08:08,829 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:08:08,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:08:08,830 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:08:08,830 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:08:08,831 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:08:08,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:08:08,832 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_01bbaeac-415f-47ae-821b-3d6624e6760d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01bbaeac-415f-47ae-821b-3d6624e6760d/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33d006375056e7e3c58d58b776bed0fedce081ec4ff9e691f038a741177fe7dd [2023-12-02 23:08:09,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:08:09,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:08:09,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:08:09,058 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:08:09,059 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:08:09,060 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01bbaeac-415f-47ae-821b-3d6624e6760d/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex3.i [2023-12-02 23:08:11,837 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:08:11,990 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:08:11,991 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01bbaeac-415f-47ae-821b-3d6624e6760d/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex3.i [2023-12-02 23:08:11,997 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01bbaeac-415f-47ae-821b-3d6624e6760d/bin/ukojak-verify-Qdu7aM0XO9/data/f599bba05/7ef866e768b049e5a9b185ff03023019/FLAG7875bdb16 [2023-12-02 23:08:12,012 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01bbaeac-415f-47ae-821b-3d6624e6760d/bin/ukojak-verify-Qdu7aM0XO9/data/f599bba05/7ef866e768b049e5a9b185ff03023019 [2023-12-02 23:08:12,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:08:12,016 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:08:12,018 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:08:12,018 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:08:12,023 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:08:12,024 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:08:12" (1/1) ... [2023-12-02 23:08:12,025 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f1b731a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:08:12, skipping insertion in model container [2023-12-02 23:08:12,025 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:08:12" (1/1) ... [2023-12-02 23:08:12,046 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:08:12,194 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:08:12,204 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:08:12,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:08:12,228 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:08:12,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:08:12 WrapperNode [2023-12-02 23:08:12,229 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:08:12,229 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:08:12,230 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:08:12,230 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:08:12,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:08:12" (1/1) ... [2023-12-02 23:08:12,242 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:08:12" (1/1) ... [2023-12-02 23:08:12,260 INFO L138 Inliner]: procedures = 11, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2023-12-02 23:08:12,261 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:08:12,262 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:08:12,262 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:08:12,262 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:08:12,271 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:08:12" (1/1) ... [2023-12-02 23:08:12,271 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:08:12" (1/1) ... [2023-12-02 23:08:12,273 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:08:12" (1/1) ... [2023-12-02 23:08:12,273 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:08:12" (1/1) ... [2023-12-02 23:08:12,278 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:08:12" (1/1) ... [2023-12-02 23:08:12,282 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:08:12" (1/1) ... [2023-12-02 23:08:12,283 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:08:12" (1/1) ... [2023-12-02 23:08:12,284 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:08:12" (1/1) ... [2023-12-02 23:08:12,286 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:08:12,287 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:08:12,287 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:08:12,287 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:08:12,288 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:08:12" (1/1) ... [2023-12-02 23:08:12,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:08:12,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01bbaeac-415f-47ae-821b-3d6624e6760d/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:08:12,317 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01bbaeac-415f-47ae-821b-3d6624e6760d/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:08:12,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01bbaeac-415f-47ae-821b-3d6624e6760d/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:08:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 23:08:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2023-12-02 23:08:12,352 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2023-12-02 23:08:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 23:08:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:08:12,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:08:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 23:08:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 23:08:12,415 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:08:12,418 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:08:12,571 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:08:12,599 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:08:12,600 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 23:08:12,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:08:12 BoogieIcfgContainer [2023-12-02 23:08:12,601 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:08:12,602 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:08:12,603 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:08:12,612 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:08:12,613 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:08:12" (1/1) ... [2023-12-02 23:08:12,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:08:12,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:12,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 34 states and 36 transitions. [2023-12-02 23:08:12,667 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2023-12-02 23:08:12,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 23:08:12,668 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:12,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:08:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:12,845 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 23:08:12,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:12,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 33 states and 35 transitions. [2023-12-02 23:08:12,879 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2023-12-02 23:08:12,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 23:08:12,879 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:12,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:08:12,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:12,993 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 23:08:13,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:13,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 32 states and 34 transitions. [2023-12-02 23:08:13,074 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2023-12-02 23:08:13,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 23:08:13,075 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:13,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:08:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:13,099 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 23:08:13,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:13,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 34 states and 37 transitions. [2023-12-02 23:08:13,133 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2023-12-02 23:08:13,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 23:08:13,134 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:13,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:08:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:13,238 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 23:08:13,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:13,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 36 states and 40 transitions. [2023-12-02 23:08:13,295 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2023-12-02 23:08:13,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 23:08:13,296 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:13,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:08:13,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:13,456 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 23:08:13,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:13,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 38 states and 43 transitions. [2023-12-02 23:08:13,941 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2023-12-02 23:08:13,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 23:08:13,942 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:13,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:08:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:13,967 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 23:08:13,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:13,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 37 states and 42 transitions. [2023-12-02 23:08:13,983 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2023-12-02 23:08:13,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 23:08:13,983 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:13,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:08:13,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:14,135 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 23:08:14,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:14,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 39 states and 46 transitions. [2023-12-02 23:08:14,395 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2023-12-02 23:08:14,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 23:08:14,395 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:14,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:08:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:14,414 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 23:08:14,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:14,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 38 states and 45 transitions. [2023-12-02 23:08:14,427 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2023-12-02 23:08:14,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 23:08:14,427 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:14,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:08:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:14,470 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 23:08:14,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:14,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 39 states and 46 transitions. [2023-12-02 23:08:14,483 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2023-12-02 23:08:14,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 23:08:14,484 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:14,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:08:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:14,502 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 23:08:14,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:14,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 38 states and 45 transitions. [2023-12-02 23:08:14,516 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2023-12-02 23:08:14,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 23:08:14,516 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:14,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:08:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:14,556 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 23:08:14,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:14,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 39 states and 46 transitions. [2023-12-02 23:08:14,572 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2023-12-02 23:08:14,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 23:08:14,575 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:14,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:08:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:14,603 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 23:08:14,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:14,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 40 states and 46 transitions. [2023-12-02 23:08:14,615 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2023-12-02 23:08:14,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 23:08:14,616 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:14,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:08:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:14,759 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 23:08:15,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:15,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 46 states and 54 transitions. [2023-12-02 23:08:15,754 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2023-12-02 23:08:15,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 23:08:15,756 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:15,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:08:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:15,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 23:08:15,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:15,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 43 states and 50 transitions. [2023-12-02 23:08:15,836 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2023-12-02 23:08:15,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 23:08:15,837 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:15,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:08:15,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:15,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 23:08:16,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:16,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 47 states and 56 transitions. [2023-12-02 23:08:16,220 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2023-12-02 23:08:16,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 23:08:16,221 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:16,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:08:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:16,237 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 23:08:16,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:16,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 46 states and 55 transitions. [2023-12-02 23:08:16,573 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2023-12-02 23:08:16,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 23:08:16,576 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:16,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:08:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:16,642 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 23:08:16,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:16,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 23 states and 26 transitions. [2023-12-02 23:08:16,685 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-12-02 23:08:16,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 23:08:16,687 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:16,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:08:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:16,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:08:18,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:18,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 28 states and 35 transitions. [2023-12-02 23:08:18,480 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2023-12-02 23:08:18,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-02 23:08:18,481 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:18,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:08:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:18,582 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 23:08:18,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:18,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 20 states and 22 transitions. [2023-12-02 23:08:18,654 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2023-12-02 23:08:18,655 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 23:08:18,655 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 20 iterations. [2023-12-02 23:08:18,662 INFO L751 CodeCheckObserver]: All specifications hold 14 specifications checked. All of them hold [2023-12-02 23:08:18,785 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 23:08:18,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 11:08:18 ImpRootNode [2023-12-02 23:08:18,789 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 23:08:18,790 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 23:08:18,790 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 23:08:18,790 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 23:08:18,790 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:08:12" (3/4) ... [2023-12-02 23:08:18,792 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 23:08:18,795 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure rec [2023-12-02 23:08:18,799 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-12-02 23:08:18,800 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-12-02 23:08:18,800 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-12-02 23:08:18,800 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-12-02 23:08:18,888 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01bbaeac-415f-47ae-821b-3d6624e6760d/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-02 23:08:18,888 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01bbaeac-415f-47ae-821b-3d6624e6760d/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-02 23:08:18,888 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 23:08:18,889 INFO L158 Benchmark]: Toolchain (without parser) took 6872.99ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 143.4MB in the beginning and 179.3MB in the end (delta: -36.0MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2023-12-02 23:08:18,890 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 123.7MB. Free memory is still 70.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:08:18,890 INFO L158 Benchmark]: CACSL2BoogieTranslator took 211.23ms. Allocated memory is still 180.4MB. Free memory was 142.9MB in the beginning and 133.4MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 23:08:18,891 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.62ms. Allocated memory is still 180.4MB. Free memory was 133.4MB in the beginning and 131.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:08:18,891 INFO L158 Benchmark]: Boogie Preprocessor took 24.13ms. Allocated memory is still 180.4MB. Free memory was 131.7MB in the beginning and 130.8MB in the end (delta: 979.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:08:18,891 INFO L158 Benchmark]: RCFGBuilder took 314.96ms. Allocated memory is still 180.4MB. Free memory was 130.8MB in the beginning and 117.7MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 23:08:18,892 INFO L158 Benchmark]: CodeCheck took 6186.66ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 117.7MB in the beginning and 184.4MB in the end (delta: -66.7MB). Peak memory consumption was 93.4MB. Max. memory is 16.1GB. [2023-12-02 23:08:18,893 INFO L158 Benchmark]: Witness Printer took 99.07ms. Allocated memory is still 218.1MB. Free memory was 184.4MB in the beginning and 179.3MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 23:08:18,895 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 2 procedures, 34 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 6.0s, OverallIterations: 20, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 656 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 517 mSDsluCounter, 556 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 292 mSDsCounter, 601 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1848 IncrementalHoareTripleChecker+Invalid, 2449 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 601 mSolverCounterUnsat, 264 mSDtfsCounter, 1848 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1580 GetRequests, 1425 SyntacticMatches, 35 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5176 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 182 NumberOfCodeBlocks, 182 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 163 ConstructedInterpolants, 0 QuantifiedInterpolants, 804 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 14/14 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: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 11]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 11]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 11]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold - InvariantResult [Line: 20]: 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 123.7MB. Free memory is still 70.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 211.23ms. Allocated memory is still 180.4MB. Free memory was 142.9MB in the beginning and 133.4MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.62ms. Allocated memory is still 180.4MB. Free memory was 133.4MB in the beginning and 131.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.13ms. Allocated memory is still 180.4MB. Free memory was 131.7MB in the beginning and 130.8MB in the end (delta: 979.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 314.96ms. Allocated memory is still 180.4MB. Free memory was 130.8MB in the beginning and 117.7MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 6186.66ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 117.7MB in the beginning and 184.4MB in the end (delta: -66.7MB). Peak memory consumption was 93.4MB. Max. memory is 16.1GB. * Witness Printer took 99.07ms. Allocated memory is still 218.1MB. Free memory was 184.4MB in the beginning and 179.3MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-02 23:08:18,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01bbaeac-415f-47ae-821b-3d6624e6760d/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