./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-regression/structure_assignment.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_77248314-fc7d-4bba-8a39-9b9f46cff1f5/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77248314-fc7d-4bba-8a39-9b9f46cff1f5/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77248314-fc7d-4bba-8a39-9b9f46cff1f5/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77248314-fc7d-4bba-8a39-9b9f46cff1f5/bin/ukojak-verify-afCqCEvfdi/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-regression/structure_assignment.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77248314-fc7d-4bba-8a39-9b9f46cff1f5/bin/ukojak-verify-afCqCEvfdi/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77248314-fc7d-4bba-8a39-9b9f46cff1f5/bin/ukojak-verify-afCqCEvfdi --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 4f8bc3539aa5cc395c69791b45bb86492b18d385db9d41324b7c9625658a9e74 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:10:18,142 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:10:18,260 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77248314-fc7d-4bba-8a39-9b9f46cff1f5/bin/ukojak-verify-afCqCEvfdi/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-24 23:10:18,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:10:18,268 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:10:18,309 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:10:18,310 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:10:18,310 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:10:18,311 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:10:18,317 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:10:18,318 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:10:18,318 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:10:18,319 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:10:18,321 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 23:10:18,321 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 23:10:18,321 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 23:10:18,322 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:10:18,322 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:10:18,323 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:10:18,323 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:10:18,323 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:10:18,324 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:10:18,324 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:10:18,325 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:10:18,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:10:18,326 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:10:18,326 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:10:18,327 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:10:18,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:10:18,328 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_77248314-fc7d-4bba-8a39-9b9f46cff1f5/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77248314-fc7d-4bba-8a39-9b9f46cff1f5/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f8bc3539aa5cc395c69791b45bb86492b18d385db9d41324b7c9625658a9e74 [2023-11-24 23:10:18,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:10:18,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:10:18,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:10:18,714 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:10:18,715 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:10:18,717 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77248314-fc7d-4bba-8a39-9b9f46cff1f5/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/ldv-regression/structure_assignment.i [2023-11-24 23:10:22,067 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:10:22,253 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:10:22,254 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77248314-fc7d-4bba-8a39-9b9f46cff1f5/sv-benchmarks/c/ldv-regression/structure_assignment.i [2023-11-24 23:10:22,263 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77248314-fc7d-4bba-8a39-9b9f46cff1f5/bin/ukojak-verify-afCqCEvfdi/data/bf9f517c3/2f266ee65f474f0d8f7fcb6529fa64a8/FLAG4636302aa [2023-11-24 23:10:22,280 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77248314-fc7d-4bba-8a39-9b9f46cff1f5/bin/ukojak-verify-afCqCEvfdi/data/bf9f517c3/2f266ee65f474f0d8f7fcb6529fa64a8 [2023-11-24 23:10:22,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:10:22,285 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:10:22,287 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:10:22,287 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:10:22,296 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:10:22,298 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:10:22" (1/1) ... [2023-11-24 23:10:22,299 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68fd9681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:22, skipping insertion in model container [2023-11-24 23:10:22,299 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:10:22" (1/1) ... [2023-11-24 23:10:22,322 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:10:22,501 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:10:22,514 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:10:22,537 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:10:22,553 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:10:22,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:22 WrapperNode [2023-11-24 23:10:22,554 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:10:22,555 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:10:22,555 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:10:22,556 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:10:22,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:22" (1/1) ... [2023-11-24 23:10:22,570 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:22" (1/1) ... [2023-11-24 23:10:22,587 INFO L138 Inliner]: procedures = 13, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 37 [2023-11-24 23:10:22,588 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:10:22,589 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:10:22,589 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:10:22,589 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:10:22,599 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:22" (1/1) ... [2023-11-24 23:10:22,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:22" (1/1) ... [2023-11-24 23:10:22,601 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:22" (1/1) ... [2023-11-24 23:10:22,602 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:22" (1/1) ... [2023-11-24 23:10:22,608 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:22" (1/1) ... [2023-11-24 23:10:22,610 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:22" (1/1) ... [2023-11-24 23:10:22,611 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:22" (1/1) ... [2023-11-24 23:10:22,612 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:22" (1/1) ... [2023-11-24 23:10:22,618 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:10:22,619 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:10:22,619 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:10:22,620 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:10:22,621 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:22" (1/1) ... [2023-11-24 23:10:22,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:10:22,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77248314-fc7d-4bba-8a39-9b9f46cff1f5/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:10:22,657 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77248314-fc7d-4bba-8a39-9b9f46cff1f5/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:10:22,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77248314-fc7d-4bba-8a39-9b9f46cff1f5/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:10:22,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:10:22,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:10:22,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:10:22,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:10:22,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:10:22,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:10:22,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:10:22,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:10:22,758 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:10:22,761 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:10:22,969 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:10:23,002 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:10:23,002 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:10:23,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:10:23 BoogieIcfgContainer [2023-11-24 23:10:23,004 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:10:23,005 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:10:23,005 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:10:23,016 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:10:23,016 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:10:23" (1/1) ... [2023-11-24 23:10:23,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:10:23,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:23,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2023-11-24 23:10:23,081 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2023-11-24 23:10:23,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 23:10:23,084 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:23,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:10:23,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:23,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:10:23,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:23,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2023-11-24 23:10:23,498 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2023-11-24 23:10:23,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 23:10:23,498 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:23,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:10:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:23,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:10:23,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:23,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2023-11-24 23:10:23,719 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2023-11-24 23:10:23,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 23:10:23,720 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:23,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:10:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:23,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:10:23,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:23,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2023-11-24 23:10:23,766 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2023-11-24 23:10:23,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 23:10:23,766 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:23,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:10:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:23,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:10:24,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:24,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2023-11-24 23:10:24,105 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2023-11-24 23:10:24,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 23:10:24,106 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:24,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:10:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:24,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:10:24,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:24,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2023-11-24 23:10:24,375 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2023-11-24 23:10:24,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 23:10:24,376 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:24,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:10:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:24,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:10:24,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:24,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-11-24 23:10:24,894 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-11-24 23:10:24,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:10:24,894 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:24,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:10:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:24,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:10:24,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:24,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-11-24 23:10:24,952 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-11-24 23:10:24,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:10:24,953 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:24,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:10:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:25,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:10:25,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:25,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-11-24 23:10:25,021 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-11-24 23:10:25,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:10:25,022 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:25,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:10:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:25,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:10:25,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:25,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-11-24 23:10:25,073 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-11-24 23:10:25,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:10:25,074 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:25,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:10:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:25,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:10:25,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:25,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-11-24 23:10:25,203 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-11-24 23:10:25,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:10:25,204 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:25,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:10:25,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:25,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:10:26,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:26,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 11 states and 10 transitions. [2023-11-24 23:10:26,246 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2023-11-24 23:10:26,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 23:10:26,246 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:26,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:10:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:26,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:10:27,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:27,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 10 states and 9 transitions. [2023-11-24 23:10:27,872 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2023-11-24 23:10:27,872 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 23:10:27,872 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 13 iterations. [2023-11-24 23:10:27,881 INFO L751 CodeCheckObserver]: All specifications hold 12 specifications checked. All of them hold [2023-11-24 23:10:27,960 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2023-11-24 23:10:27,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:10:27 ImpRootNode [2023-11-24 23:10:27,964 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:10:27,965 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:10:27,965 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:10:27,965 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:10:27,966 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:10:23" (3/4) ... [2023-11-24 23:10:27,968 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 23:10:27,975 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-24 23:10:27,976 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-24 23:10:27,976 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 23:10:27,976 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 23:10:28,057 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77248314-fc7d-4bba-8a39-9b9f46cff1f5/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 23:10:28,058 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77248314-fc7d-4bba-8a39-9b9f46cff1f5/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 23:10:28,058 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:10:28,059 INFO L158 Benchmark]: Toolchain (without parser) took 5773.87ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 114.1MB in the beginning and 65.6MB in the end (delta: 48.5MB). Peak memory consumption was 81.6MB. Max. memory is 16.1GB. [2023-11-24 23:10:28,060 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 109.1MB. Free memory is still 56.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:10:28,060 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.67ms. Allocated memory is still 157.3MB. Free memory was 114.1MB in the beginning and 103.8MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 23:10:28,061 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.66ms. Allocated memory is still 157.3MB. Free memory was 103.8MB in the beginning and 102.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:10:28,061 INFO L158 Benchmark]: Boogie Preprocessor took 29.48ms. Allocated memory is still 157.3MB. Free memory was 102.3MB in the beginning and 101.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:10:28,062 INFO L158 Benchmark]: RCFGBuilder took 385.75ms. Allocated memory is still 157.3MB. Free memory was 101.1MB in the beginning and 89.2MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 23:10:28,062 INFO L158 Benchmark]: CodeCheck took 4959.24ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 89.2MB in the beginning and 70.8MB in the end (delta: 18.4MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. [2023-11-24 23:10:28,063 INFO L158 Benchmark]: Witness Printer took 93.06ms. Allocated memory is still 188.7MB. Free memory was 69.8MB in the beginning and 65.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:10:28,066 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, 23 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 157 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 143 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 177 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 662 IncrementalHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 177 mSolverCounterUnsat, 2 mSDtfsCounter, 662 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 411 GetRequests, 319 SyntacticMatches, 4 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3102 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 296 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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: -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: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: null * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 109.1MB. Free memory is still 56.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.67ms. Allocated memory is still 157.3MB. Free memory was 114.1MB in the beginning and 103.8MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.66ms. Allocated memory is still 157.3MB. Free memory was 103.8MB in the beginning and 102.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.48ms. Allocated memory is still 157.3MB. Free memory was 102.3MB in the beginning and 101.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 385.75ms. Allocated memory is still 157.3MB. Free memory was 101.1MB in the beginning and 89.2MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 4959.24ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 89.2MB in the beginning and 70.8MB in the end (delta: 18.4MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. * Witness Printer took 93.06ms. Allocated memory is still 188.7MB. Free memory was 69.8MB in the beginning and 65.6MB 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! [2023-11-24 23:10:28,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77248314-fc7d-4bba-8a39-9b9f46cff1f5/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE