./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e78e3d-eabe-4f33-99f5-c15eedfcac85/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e78e3d-eabe-4f33-99f5-c15eedfcac85/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e78e3d-eabe-4f33-99f5-c15eedfcac85/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e78e3d-eabe-4f33-99f5-c15eedfcac85/bin/ukojak-verify-CZk0znPC7b/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e78e3d-eabe-4f33-99f5-c15eedfcac85/bin/ukojak-verify-CZk0znPC7b/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e78e3d-eabe-4f33-99f5-c15eedfcac85/bin/ukojak-verify-CZk0znPC7b --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 f8b4bb9a8f404cd020a4d6119f922da096d098a1547934faf4c16f394bfab92c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:58:56,004 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:58:56,060 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e78e3d-eabe-4f33-99f5-c15eedfcac85/bin/ukojak-verify-CZk0znPC7b/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-12-06 05:58:56,064 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 05:58:56,064 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 05:58:56,084 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:58:56,085 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:58:56,085 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:58:56,085 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:58:56,085 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 05:58:56,085 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 05:58:56,086 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 05:58:56,086 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:58:56,086 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-06 05:58:56,086 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-06 05:58:56,086 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-06 05:58:56,086 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:58:56,086 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 05:58:56,086 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 05:58:56,086 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:58:56,086 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:58:56,087 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:58:56,087 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:58:56,087 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:58:56,087 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:58:56,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:58:56,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:58:56,087 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:58:56,087 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 05:58:56,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 05:58:56,087 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c1e78e3d-eabe-4f33-99f5-c15eedfcac85/bin/ukojak-verify-CZk0znPC7b 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 -> f8b4bb9a8f404cd020a4d6119f922da096d098a1547934faf4c16f394bfab92c [2024-12-06 05:58:56,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:58:56,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:58:56,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:58:56,333 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:58:56,333 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:58:56,334 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e78e3d-eabe-4f33-99f5-c15eedfcac85/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/memsafety-ext3/scopes3.c [2024-12-06 05:58:58,989 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e78e3d-eabe-4f33-99f5-c15eedfcac85/bin/ukojak-verify-CZk0znPC7b/data/bb2d9ca5d/58b95191d0324cc78b2d9d18426e797d/FLAG48465a4c5 [2024-12-06 05:58:59,153 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:58:59,153 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e78e3d-eabe-4f33-99f5-c15eedfcac85/sv-benchmarks/c/memsafety-ext3/scopes3.c [2024-12-06 05:58:59,159 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e78e3d-eabe-4f33-99f5-c15eedfcac85/bin/ukojak-verify-CZk0znPC7b/data/bb2d9ca5d/58b95191d0324cc78b2d9d18426e797d/FLAG48465a4c5 [2024-12-06 05:58:59,173 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e78e3d-eabe-4f33-99f5-c15eedfcac85/bin/ukojak-verify-CZk0znPC7b/data/bb2d9ca5d/58b95191d0324cc78b2d9d18426e797d [2024-12-06 05:58:59,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:58:59,177 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:58:59,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:58:59,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:58:59,182 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:58:59,183 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:58:59" (1/1) ... [2024-12-06 05:58:59,183 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@430ade90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:59, skipping insertion in model container [2024-12-06 05:58:59,184 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:58:59" (1/1) ... [2024-12-06 05:58:59,196 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:58:59,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:58:59,333 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:58:59,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:58:59,355 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:58:59,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:59 WrapperNode [2024-12-06 05:58:59,355 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:58:59,356 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:58:59,356 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:58:59,356 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:58:59,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:59" (1/1) ... [2024-12-06 05:58:59,366 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:59" (1/1) ... [2024-12-06 05:58:59,378 INFO L138 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2024-12-06 05:58:59,378 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:58:59,378 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:58:59,378 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:58:59,378 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:58:59,383 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:59" (1/1) ... [2024-12-06 05:58:59,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:59" (1/1) ... [2024-12-06 05:58:59,384 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:59" (1/1) ... [2024-12-06 05:58:59,384 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:59" (1/1) ... [2024-12-06 05:58:59,387 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:59" (1/1) ... [2024-12-06 05:58:59,387 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:59" (1/1) ... [2024-12-06 05:58:59,389 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:59" (1/1) ... [2024-12-06 05:58:59,390 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:59" (1/1) ... [2024-12-06 05:58:59,390 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:59" (1/1) ... [2024-12-06 05:58:59,391 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:58:59,392 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:58:59,392 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:58:59,392 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:58:59,393 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:58:59" (1/1) ... [2024-12-06 05:58:59,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:58:59,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e78e3d-eabe-4f33-99f5-c15eedfcac85/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:58:59,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e78e3d-eabe-4f33-99f5-c15eedfcac85/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:58:59,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e78e3d-eabe-4f33-99f5-c15eedfcac85/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:58:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 05:58:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:58:59,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:58:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-06 05:58:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 05:58:59,485 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:58:59,487 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:58:59,582 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-12-06 05:58:59,582 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:58:59,610 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:58:59,610 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 05:58:59,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:58:59 BoogieIcfgContainer [2024-12-06 05:58:59,611 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:58:59,611 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:58:59,611 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:58:59,619 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:58:59,619 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:58:59" (1/1) ... [2024-12-06 05:58:59,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:58:59,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:58:59,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2024-12-06 05:58:59,664 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2024-12-06 05:58:59,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-06 05:58:59,666 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:58:59,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:58:59,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:58:59,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:58:59,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:58:59,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2024-12-06 05:58:59,808 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2024-12-06 05:58:59,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-06 05:58:59,809 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:58:59,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:58:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:58:59,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:58:59,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:58:59,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2024-12-06 05:58:59,900 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2024-12-06 05:58:59,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-06 05:58:59,900 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:58:59,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:58:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:58:59,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:59:00,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:59:00,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2024-12-06 05:59:00,103 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2024-12-06 05:59:00,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 05:59:00,103 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:59:00,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:59:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:59:00,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:59:00,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:59:00,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2024-12-06 05:59:00,309 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2024-12-06 05:59:00,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 05:59:00,309 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:59:00,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:59:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:59:00,387 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:59:00,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:59:00,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2024-12-06 05:59:00,549 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-12-06 05:59:00,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 05:59:00,550 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:59:00,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:59:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:59:00,644 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:59:00,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:59:00,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-12-06 05:59:00,828 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-12-06 05:59:00,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 05:59:00,828 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:59:00,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:59:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:59:00,929 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:59:01,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:59:01,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2024-12-06 05:59:01,149 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2024-12-06 05:59:01,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 05:59:01,149 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:59:01,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:59:01,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:59:01,254 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:59:01,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:59:01,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2024-12-06 05:59:01,466 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2024-12-06 05:59:01,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 05:59:01,466 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:59:01,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:59:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:59:01,594 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:59:01,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:59:01,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 22 states and 24 transitions. [2024-12-06 05:59:01,815 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2024-12-06 05:59:01,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-06 05:59:01,815 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:59:01,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:59:01,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:59:01,972 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:59:02,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:59:02,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2024-12-06 05:59:02,232 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2024-12-06 05:59:02,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-06 05:59:02,232 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:59:02,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:59:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:59:02,414 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:59:02,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:59:02,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2024-12-06 05:59:02,691 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2024-12-06 05:59:02,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-06 05:59:02,692 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:59:02,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:59:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:59:02,853 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:59:03,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:59:03,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 28 states and 29 transitions. [2024-12-06 05:59:03,120 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2024-12-06 05:59:03,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-12-06 05:59:03,121 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:59:03,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:59:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:59:03,161 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:59:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:59:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:59:03,309 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:59:03,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:59:03,369 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 13 iterations. [2024-12-06 05:59:03,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:59:03 ImpRootNode [2024-12-06 05:59:03,395 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:59:03,395 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:59:03,395 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:59:03,395 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:59:03,396 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:58:59" (3/4) ... [2024-12-06 05:59:03,397 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 05:59:03,431 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 12. [2024-12-06 05:59:03,473 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e78e3d-eabe-4f33-99f5-c15eedfcac85/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 05:59:03,473 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e78e3d-eabe-4f33-99f5-c15eedfcac85/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 05:59:03,474 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:59:03,474 INFO L158 Benchmark]: Toolchain (without parser) took 4297.86ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 93.1MB in the beginning and 81.8MB in the end (delta: 11.3MB). Peak memory consumption was 97.3MB. Max. memory is 16.1GB. [2024-12-06 05:59:03,475 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 72.8MB in the end (delta: 86.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:59:03,475 INFO L158 Benchmark]: CACSL2BoogieTranslator took 177.53ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 82.5MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:59:03,475 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.35ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 81.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:59:03,476 INFO L158 Benchmark]: Boogie Preprocessor took 13.18ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 80.9MB in the end (delta: 597.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:59:03,476 INFO L158 Benchmark]: RCFGBuilder took 218.41ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 70.3MB in the end (delta: 10.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:59:03,476 INFO L158 Benchmark]: CodeCheck took 3783.58ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 70.3MB in the beginning and 87.0MB in the end (delta: -16.7MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. [2024-12-06 05:59:03,477 INFO L158 Benchmark]: Witness Printer took 78.40ms. Allocated memory is still 201.3MB. Free memory was 87.0MB in the beginning and 81.8MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:59:03,478 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, 11 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 160 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 90 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 261 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 759 IncrementalHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 261 mSolverCounterUnsat, 24 mSDtfsCounter, 759 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1041 GetRequests, 895 SyntacticMatches, 64 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2282 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 326 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 3 PerfectInterpolantSequences, 0/285 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, ConComCheckerStatistics: No data available - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L2] int* p; [L3] int i = 0; VAL [i=0] [L3] COND TRUE i < 10 [L4] int a[10]; [L5] p = a VAL [i=0, p={7:0}] [L6] p[0] = 1 [L3] i++ VAL [i=1, p={7:0}] [L3] COND TRUE i < 10 [L4] int a[10]; [L5] p = a VAL [i=1, p={7:0}] [L6] p[0] = 1 [L3] i++ VAL [i=2, p={7:0}] [L3] COND TRUE i < 10 [L4] int a[10]; [L5] p = a VAL [i=2, p={4:0}] [L6] p[0] = 1 [L3] i++ VAL [i=3, p={4:0}] [L3] COND TRUE i < 10 [L4] int a[10]; [L5] p = a VAL [i=3, p={8:0}] [L6] p[0] = 1 [L3] i++ VAL [i=4, p={8:0}] [L3] COND TRUE i < 10 [L4] int a[10]; [L5] p = a VAL [i=4, p={9:0}] [L6] p[0] = 1 [L3] i++ VAL [i=5, p={9:0}] [L3] COND TRUE i < 10 [L4] int a[10]; [L5] p = a VAL [i=5, p={9:0}] [L6] p[0] = 1 [L3] i++ VAL [i=6, p={9:0}] [L3] COND TRUE i < 10 [L4] int a[10]; [L5] p = a VAL [i=6, p={3:0}] [L6] p[0] = 1 [L3] i++ VAL [i=7, p={3:0}] [L3] COND TRUE i < 10 [L4] int a[10]; [L5] p = a VAL [i=7, p={3:0}] [L6] p[0] = 1 [L3] i++ VAL [i=8, p={3:0}] [L3] COND TRUE i < 10 [L4] int a[10]; [L5] p = a VAL [i=8, p={6:0}] [L6] p[0] = 1 [L3] i++ VAL [i=9, p={6:0}] [L3] COND TRUE i < 10 [L4] int a[10]; [L5] p = a VAL [i=9, p={5:0}] [L6] p[0] = 1 [L3] i++ VAL [i=10, p={5:0}] [L3] COND FALSE !(i < 10) [L8] p[0] = 2 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 72.8MB in the end (delta: 86.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 177.53ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 82.5MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.35ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 81.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.18ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 80.9MB in the end (delta: 597.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 218.41ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 70.3MB in the end (delta: 10.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 3783.58ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 70.3MB in the beginning and 87.0MB in the end (delta: -16.7MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. * Witness Printer took 78.40ms. Allocated memory is still 201.3MB. Free memory was 87.0MB in the beginning and 81.8MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 05:59:03,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e78e3d-eabe-4f33-99f5-c15eedfcac85/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)