./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-regression/nested_structure_noptr-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_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/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_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-regression/nested_structure_noptr-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/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_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/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 552504b8dd67a1f0b5535e7605bdb089a6d97e479e395554cfd041029e9dab91 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:23:02,245 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:23:02,315 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-12-02 23:23:02,320 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:23:02,321 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:23:02,344 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:23:02,345 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:23:02,346 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:23:02,346 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:23:02,347 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:23:02,347 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:23:02,348 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:23:02,348 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:23:02,349 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 23:23:02,349 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 23:23:02,350 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-02 23:23:02,350 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:23:02,351 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 23:23:02,351 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:23:02,352 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:23:02,352 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:23:02,353 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:23:02,354 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:23:02,354 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:23:02,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:23:02,355 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:23:02,356 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:23:02,356 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:23:02,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:23:02,357 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_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 552504b8dd67a1f0b5535e7605bdb089a6d97e479e395554cfd041029e9dab91 [2023-12-02 23:23:02,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:23:02,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:23:02,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:23:02,633 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:23:02,634 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:23:02,636 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/ldv-regression/nested_structure_noptr-2.i [2023-12-02 23:23:07,587 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:23:07,751 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:23:07,751 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/sv-benchmarks/c/ldv-regression/nested_structure_noptr-2.i [2023-12-02 23:23:07,757 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/data/96731dbc4/a155db4388fc4fe3ba3a520aeeab01c9/FLAG6c20fc725 [2023-12-02 23:23:07,767 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/data/96731dbc4/a155db4388fc4fe3ba3a520aeeab01c9 [2023-12-02 23:23:07,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:23:07,771 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:23:07,772 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:23:07,772 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:23:07,776 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:23:07,776 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:23:07" (1/1) ... [2023-12-02 23:23:07,777 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@229eeffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07, skipping insertion in model container [2023-12-02 23:23:07,777 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:23:07" (1/1) ... [2023-12-02 23:23:07,794 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:23:07,927 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:23:07,937 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:23:07,954 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:23:07,966 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:23:07,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07 WrapperNode [2023-12-02 23:23:07,966 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:23:07,967 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:23:07,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:23:07,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:23:07,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07" (1/1) ... [2023-12-02 23:23:07,980 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07" (1/1) ... [2023-12-02 23:23:07,994 INFO L138 Inliner]: procedures = 13, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 28 [2023-12-02 23:23:07,995 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:23:07,995 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:23:07,995 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:23:07,995 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:23:08,002 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07" (1/1) ... [2023-12-02 23:23:08,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07" (1/1) ... [2023-12-02 23:23:08,004 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07" (1/1) ... [2023-12-02 23:23:08,004 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07" (1/1) ... [2023-12-02 23:23:08,009 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07" (1/1) ... [2023-12-02 23:23:08,011 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07" (1/1) ... [2023-12-02 23:23:08,012 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07" (1/1) ... [2023-12-02 23:23:08,013 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07" (1/1) ... [2023-12-02 23:23:08,015 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:23:08,016 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:23:08,016 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:23:08,016 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:23:08,017 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07" (1/1) ... [2023-12-02 23:23:08,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:23:08,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:23:08,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:23:08,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:23:08,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:23:08,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:23:08,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 23:23:08,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 23:23:08,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:23:08,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:23:08,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 23:23:08,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 23:23:08,147 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:23:08,150 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:23:08,252 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:23:08,274 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:23:08,274 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 23:23:08,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:23:08 BoogieIcfgContainer [2023-12-02 23:23:08,275 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:23:08,276 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:23:08,276 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:23:08,284 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:23:08,284 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:23:08" (1/1) ... [2023-12-02 23:23:08,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:23:08,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:23:08,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-12-02 23:23:08,338 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-12-02 23:23:08,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-02 23:23:08,339 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:23:08,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:23:08,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:23:08,514 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 23:23:08,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:23:08,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-12-02 23:23:08,546 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-12-02 23:23:08,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-02 23:23:08,547 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:23:08,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:23:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:23:08,651 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 23:23:08,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:23:08,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-12-02 23:23:08,755 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-12-02 23:23:08,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 23:23:08,755 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:23:08,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:23:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:23:08,801 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 23:23:08,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:23:08,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-12-02 23:23:08,815 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-12-02 23:23:08,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 23:23:08,816 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:23:08,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:23:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:23:08,885 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 23:23:09,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:23:09,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2023-12-02 23:23:09,010 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2023-12-02 23:23:09,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 23:23:09,011 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:23:09,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:23:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:23:09,100 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 23:23:09,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:23:09,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 8 states and 7 transitions. [2023-12-02 23:23:09,271 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2023-12-02 23:23:09,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 23:23:09,271 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:23:09,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:23:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:23:09,388 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 23:23:09,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:23:09,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 7 states and 6 transitions. [2023-12-02 23:23:09,800 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2023-12-02 23:23:09,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 23:23:09,801 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2023-12-02 23:23:09,810 INFO L751 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2023-12-02 23:23:09,835 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2023-12-02 23:23:09,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 11:23:09 ImpRootNode [2023-12-02 23:23:09,840 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 23:23:09,840 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 23:23:09,840 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 23:23:09,841 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 23:23:09,841 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:23:08" (3/4) ... [2023-12-02 23:23:09,843 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 23:23:09,849 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-12-02 23:23:09,849 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-12-02 23:23:09,849 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 23:23:09,850 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 23:23:09,918 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-02 23:23:09,918 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-02 23:23:09,918 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 23:23:09,919 INFO L158 Benchmark]: Toolchain (without parser) took 2147.56ms. Allocated memory was 157.3MB in the beginning and 211.8MB in the end (delta: 54.5MB). Free memory was 103.2MB in the beginning and 111.8MB in the end (delta: -8.6MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. [2023-12-02 23:23:09,919 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 157.3MB. Free memory is still 127.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:23:09,920 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.49ms. Allocated memory is still 157.3MB. Free memory was 103.2MB in the beginning and 92.9MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 23:23:09,920 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.32ms. Allocated memory is still 157.3MB. Free memory was 92.9MB in the beginning and 91.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:23:09,921 INFO L158 Benchmark]: Boogie Preprocessor took 19.73ms. Allocated memory is still 157.3MB. Free memory was 91.4MB in the beginning and 90.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:23:09,921 INFO L158 Benchmark]: RCFGBuilder took 259.76ms. Allocated memory is still 157.3MB. Free memory was 90.1MB in the beginning and 79.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 23:23:09,922 INFO L158 Benchmark]: CodeCheck took 1563.43ms. Allocated memory was 157.3MB in the beginning and 211.8MB in the end (delta: 54.5MB). Free memory was 79.6MB in the beginning and 115.9MB in the end (delta: -36.3MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2023-12-02 23:23:09,922 INFO L158 Benchmark]: Witness Printer took 77.69ms. Allocated memory is still 211.8MB. Free memory was 115.9MB in the beginning and 111.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 23:23:09,925 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, 14 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 135 IncrementalHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 2 mSDtfsCounter, 135 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 99 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 75 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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: -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: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 27]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: null * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 157.3MB. Free memory is still 127.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 194.49ms. Allocated memory is still 157.3MB. Free memory was 103.2MB in the beginning and 92.9MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.32ms. Allocated memory is still 157.3MB. Free memory was 92.9MB in the beginning and 91.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.73ms. Allocated memory is still 157.3MB. Free memory was 91.4MB in the beginning and 90.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 259.76ms. Allocated memory is still 157.3MB. Free memory was 90.1MB in the beginning and 79.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1563.43ms. Allocated memory was 157.3MB in the beginning and 211.8MB in the end (delta: 54.5MB). Free memory was 79.6MB in the beginning and 115.9MB in the end (delta: -36.3MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * Witness Printer took 77.69ms. Allocated memory is still 211.8MB. Free memory was 115.9MB in the beginning and 111.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-02 23:23:09,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/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