./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.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_21d32c4e-c140-41c8-923e-3ed88fc57136/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d32c4e-c140-41c8-923e-3ed88fc57136/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d32c4e-c140-41c8-923e-3ed88fc57136/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d32c4e-c140-41c8-923e-3ed88fc57136/bin/ukojak-verify-ENZ3QT5qd3/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d32c4e-c140-41c8-923e-3ed88fc57136/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d32c4e-c140-41c8-923e-3ed88fc57136/bin/ukojak-verify-ENZ3QT5qd3 --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 07a396ef153f1ca8e856eefcfa25d3d77eb73f779a009e48698bf5ce12969740 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 04:57:18,627 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 04:57:18,724 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d32c4e-c140-41c8-923e-3ed88fc57136/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-11-25 04:57:18,730 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 04:57:18,732 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 04:57:18,761 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 04:57:18,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 04:57:18,762 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 04:57:18,763 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 04:57:18,763 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 04:57:18,763 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 04:57:18,763 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 04:57:18,763 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 04:57:18,763 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-25 04:57:18,763 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-25 04:57:18,764 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-25 04:57:18,764 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 04:57:18,764 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 04:57:18,764 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 04:57:18,764 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 04:57:18,764 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 04:57:18,764 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 04:57:18,765 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 04:57:18,765 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 04:57:18,765 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 04:57:18,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:57:18,765 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 04:57:18,765 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 04:57:18,766 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 04:57:18,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 04:57:18,766 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_21d32c4e-c140-41c8-923e-3ed88fc57136/bin/ukojak-verify-ENZ3QT5qd3 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 -> 07a396ef153f1ca8e856eefcfa25d3d77eb73f779a009e48698bf5ce12969740 [2024-11-25 04:57:19,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 04:57:19,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 04:57:19,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 04:57:19,118 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 04:57:19,118 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 04:57:19,119 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d32c4e-c140-41c8-923e-3ed88fc57136/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c [2024-11-25 04:57:22,170 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d32c4e-c140-41c8-923e-3ed88fc57136/bin/ukojak-verify-ENZ3QT5qd3/data/46b630d61/73cc8e51a8194c17923feefc608a508f/FLAGec83f28a7 [2024-11-25 04:57:22,445 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 04:57:22,446 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d32c4e-c140-41c8-923e-3ed88fc57136/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c [2024-11-25 04:57:22,457 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d32c4e-c140-41c8-923e-3ed88fc57136/bin/ukojak-verify-ENZ3QT5qd3/data/46b630d61/73cc8e51a8194c17923feefc608a508f/FLAGec83f28a7 [2024-11-25 04:57:22,472 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d32c4e-c140-41c8-923e-3ed88fc57136/bin/ukojak-verify-ENZ3QT5qd3/data/46b630d61/73cc8e51a8194c17923feefc608a508f [2024-11-25 04:57:22,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 04:57:22,477 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 04:57:22,478 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 04:57:22,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 04:57:22,482 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 04:57:22,483 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:57:22" (1/1) ... [2024-11-25 04:57:22,484 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d254ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:22, skipping insertion in model container [2024-11-25 04:57:22,484 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:57:22" (1/1) ... [2024-11-25 04:57:22,499 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 04:57:22,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:57:22,677 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 04:57:22,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:57:22,714 INFO L204 MainTranslator]: Completed translation [2024-11-25 04:57:22,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:22 WrapperNode [2024-11-25 04:57:22,715 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 04:57:22,716 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 04:57:22,716 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 04:57:22,716 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 04:57:22,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:22" (1/1) ... [2024-11-25 04:57:22,730 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:22" (1/1) ... [2024-11-25 04:57:22,749 INFO L138 Inliner]: procedures = 9, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2024-11-25 04:57:22,750 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 04:57:22,750 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 04:57:22,750 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 04:57:22,750 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 04:57:22,757 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:22" (1/1) ... [2024-11-25 04:57:22,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:22" (1/1) ... [2024-11-25 04:57:22,759 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:22" (1/1) ... [2024-11-25 04:57:22,760 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:22" (1/1) ... [2024-11-25 04:57:22,765 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:22" (1/1) ... [2024-11-25 04:57:22,766 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:22" (1/1) ... [2024-11-25 04:57:22,777 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:22" (1/1) ... [2024-11-25 04:57:22,778 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:22" (1/1) ... [2024-11-25 04:57:22,779 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:22" (1/1) ... [2024-11-25 04:57:22,781 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 04:57:22,782 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 04:57:22,785 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 04:57:22,785 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 04:57:22,786 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:22" (1/1) ... [2024-11-25 04:57:22,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:57:22,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d32c4e-c140-41c8-923e-3ed88fc57136/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 04:57:22,826 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d32c4e-c140-41c8-923e-3ed88fc57136/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 04:57:22,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d32c4e-c140-41c8-923e-3ed88fc57136/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 04:57:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-25 04:57:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 04:57:22,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 04:57:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-25 04:57:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 04:57:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 04:57:22,939 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 04:57:22,941 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 04:57:23,181 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-25 04:57:23,182 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 04:57:23,281 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 04:57:23,281 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-25 04:57:23,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:57:23 BoogieIcfgContainer [2024-11-25 04:57:23,282 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 04:57:23,283 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 04:57:23,283 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 04:57:23,294 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 04:57:23,294 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:57:23" (1/1) ... [2024-11-25 04:57:23,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 04:57:23,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:57:23,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2024-11-25 04:57:23,349 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2024-11-25 04:57:23,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-25 04:57:23,351 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:57:23,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:57:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:57:23,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:57:23,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:57:23,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2024-11-25 04:57:23,555 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2024-11-25 04:57:23,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-25 04:57:23,555 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:57:23,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:57:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:57:23,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:57:23,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:57:23,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2024-11-25 04:57:23,746 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2024-11-25 04:57:23,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-25 04:57:23,748 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:57:23,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:57:23,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:57:23,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:57:24,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:57:24,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 28 states and 36 transitions. [2024-11-25 04:57:24,049 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2024-11-25 04:57:24,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-25 04:57:24,049 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:57:24,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:57:24,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:57:24,073 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:57:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:57:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:57:24,142 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:57:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:57:24,161 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2024-11-25 04:57:24,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 04:57:24 ImpRootNode [2024-11-25 04:57:24,187 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 04:57:24,188 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 04:57:24,188 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 04:57:24,190 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 04:57:24,191 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:57:23" (3/4) ... [2024-11-25 04:57:24,191 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-25 04:57:24,249 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 6. [2024-11-25 04:57:24,303 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d32c4e-c140-41c8-923e-3ed88fc57136/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 04:57:24,303 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d32c4e-c140-41c8-923e-3ed88fc57136/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 04:57:24,304 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 04:57:24,307 INFO L158 Benchmark]: Toolchain (without parser) took 1827.73ms. Allocated memory is still 142.6MB. Free memory was 117.7MB in the beginning and 47.0MB in the end (delta: 70.7MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-11-25 04:57:24,307 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:57:24,308 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.86ms. Allocated memory is still 142.6MB. Free memory was 117.5MB in the beginning and 106.7MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:57:24,308 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.60ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 105.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:57:24,308 INFO L158 Benchmark]: Boogie Preprocessor took 30.77ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 104.5MB in the end (delta: 914.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:57:24,309 INFO L158 Benchmark]: RCFGBuilder took 500.23ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 86.7MB in the end (delta: 17.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-25 04:57:24,310 INFO L158 Benchmark]: CodeCheck took 904.38ms. Allocated memory is still 142.6MB. Free memory was 86.7MB in the beginning and 51.2MB in the end (delta: 35.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-25 04:57:24,311 INFO L158 Benchmark]: Witness Printer took 115.26ms. Allocated memory is still 142.6MB. Free memory was 51.2MB in the beginning and 47.0MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:57:24,312 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, 24 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 23 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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, ConComCheckerStatistics: No data available - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L32] int i, b[100]; [L33] i = 0 VAL [b={3:0}, i=0] [L33] COND TRUE i < 100 [L34] CALL foo(i, b, i) [L21] int a[n], i; [L22] i = 0 VAL [a={2:0}, b={3:0}, i=0, size=0] [L22] COND FALSE !(i < size) [L25] CALL bar(a, size + 1) [L12] int res = 0, i; [L13] i = 0 VAL [b={2:0}, i=0, res=0, size=1] [L13] COND TRUE i < size VAL [b={2:0}, i=0, res=0, size=1] [L14] b[i] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 237.86ms. Allocated memory is still 142.6MB. Free memory was 117.5MB in the beginning and 106.7MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.60ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 105.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.77ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 104.5MB in the end (delta: 914.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 500.23ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 86.7MB in the end (delta: 17.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 904.38ms. Allocated memory is still 142.6MB. Free memory was 86.7MB in the beginning and 51.2MB in the end (delta: 35.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 115.26ms. Allocated memory is still 142.6MB. Free memory was 51.2MB in the beginning and 47.0MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-25 04:57:24,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d32c4e-c140-41c8-923e-3ed88fc57136/bin/ukojak-verify-ENZ3QT5qd3/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)