./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-regression/test04.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_31cb8011-2d4f-41da-afb6-89f16c4b5a90/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cb8011-2d4f-41da-afb6-89f16c4b5a90/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_31cb8011-2d4f-41da-afb6-89f16c4b5a90/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cb8011-2d4f-41da-afb6-89f16c4b5a90/bin/ukojak-verify-ENZ3QT5qd3/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-regression/test04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cb8011-2d4f-41da-afb6-89f16c4b5a90/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_31cb8011-2d4f-41da-afb6-89f16c4b5a90/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 774a580136eb5be5517f5bdf88a1aea58349f7d80571f2499dc303b413dfbdb7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 04:40:38,949 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 04:40:39,060 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cb8011-2d4f-41da-afb6-89f16c4b5a90/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-11-25 04:40:39,069 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 04:40:39,070 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 04:40:39,104 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 04:40:39,106 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 04:40:39,107 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 04:40:39,108 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 04:40:39,108 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 04:40:39,108 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 04:40:39,108 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 04:40:39,109 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 04:40:39,109 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-25 04:40:39,109 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-25 04:40:39,109 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-25 04:40:39,109 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 04:40:39,110 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 04:40:39,111 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 04:40:39,111 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 04:40:39,111 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 04:40:39,111 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 04:40:39,111 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 04:40:39,111 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 04:40:39,111 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 04:40:39,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:40:39,112 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 04:40:39,112 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 04:40:39,112 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 04:40:39,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 04:40:39,112 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_31cb8011-2d4f-41da-afb6-89f16c4b5a90/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 -> 774a580136eb5be5517f5bdf88a1aea58349f7d80571f2499dc303b413dfbdb7 [2024-11-25 04:40:39,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 04:40:39,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 04:40:39,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 04:40:39,487 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 04:40:39,488 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 04:40:39,489 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cb8011-2d4f-41da-afb6-89f16c4b5a90/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/ldv-regression/test04.c [2024-11-25 04:40:42,428 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cb8011-2d4f-41da-afb6-89f16c4b5a90/bin/ukojak-verify-ENZ3QT5qd3/data/3bc83785d/83b45cd0c51d4f89bf60fb6038c2f8ce/FLAGded3e8231 [2024-11-25 04:40:42,676 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 04:40:42,677 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cb8011-2d4f-41da-afb6-89f16c4b5a90/sv-benchmarks/c/ldv-regression/test04.c [2024-11-25 04:40:42,685 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cb8011-2d4f-41da-afb6-89f16c4b5a90/bin/ukojak-verify-ENZ3QT5qd3/data/3bc83785d/83b45cd0c51d4f89bf60fb6038c2f8ce/FLAGded3e8231 [2024-11-25 04:40:42,721 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cb8011-2d4f-41da-afb6-89f16c4b5a90/bin/ukojak-verify-ENZ3QT5qd3/data/3bc83785d/83b45cd0c51d4f89bf60fb6038c2f8ce [2024-11-25 04:40:42,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 04:40:42,726 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 04:40:42,728 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 04:40:42,728 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 04:40:42,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 04:40:42,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:40:42" (1/1) ... [2024-11-25 04:40:42,737 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28fe81b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:40:42, skipping insertion in model container [2024-11-25 04:40:42,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:40:42" (1/1) ... [2024-11-25 04:40:42,753 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 04:40:42,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:40:42,957 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 04:40:42,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:40:42,995 INFO L204 MainTranslator]: Completed translation [2024-11-25 04:40:42,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:40:42 WrapperNode [2024-11-25 04:40:42,995 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 04:40:42,996 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 04:40:42,996 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 04:40:42,997 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 04:40:43,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:40:42" (1/1) ... [2024-11-25 04:40:43,009 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:40:42" (1/1) ... [2024-11-25 04:40:43,022 INFO L138 Inliner]: procedures = 13, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 46 [2024-11-25 04:40:43,023 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 04:40:43,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 04:40:43,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 04:40:43,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 04:40:43,028 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:40:42" (1/1) ... [2024-11-25 04:40:43,028 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:40:42" (1/1) ... [2024-11-25 04:40:43,030 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:40:42" (1/1) ... [2024-11-25 04:40:43,030 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:40:42" (1/1) ... [2024-11-25 04:40:43,034 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:40:42" (1/1) ... [2024-11-25 04:40:43,034 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:40:42" (1/1) ... [2024-11-25 04:40:43,036 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:40:42" (1/1) ... [2024-11-25 04:40:43,037 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:40:42" (1/1) ... [2024-11-25 04:40:43,037 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:40:42" (1/1) ... [2024-11-25 04:40:43,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 04:40:43,040 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 04:40:43,040 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 04:40:43,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 04:40:43,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:40:42" (1/1) ... [2024-11-25 04:40:43,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:40:43,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cb8011-2d4f-41da-afb6-89f16c4b5a90/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 04:40:43,073 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cb8011-2d4f-41da-afb6-89f16c4b5a90/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 04:40:43,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cb8011-2d4f-41da-afb6-89f16c4b5a90/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 04:40:43,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 04:40:43,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 04:40:43,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 04:40:43,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-25 04:40:43,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 04:40:43,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 04:40:43,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-25 04:40:43,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 04:40:43,184 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 04:40:43,186 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 04:40:43,315 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-25 04:40:43,316 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 04:40:43,357 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 04:40:43,357 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 04:40:43,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:40:43 BoogieIcfgContainer [2024-11-25 04:40:43,357 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 04:40:43,358 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 04:40:43,358 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 04:40:43,369 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 04:40:43,369 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:40:43" (1/1) ... [2024-11-25 04:40:43,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 04:40:43,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:40:43,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-11-25 04:40:43,425 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-11-25 04:40:43,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-11-25 04:40:43,427 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:40:43,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:40:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:40:43,709 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 04:40:43,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:40:43,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-25 04:40:43,774 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-25 04:40:43,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-11-25 04:40:43,774 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:40:43,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:40:43,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:40:44,063 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 04:40:44,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:40:44,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2024-11-25 04:40:44,207 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2024-11-25 04:40:44,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-25 04:40:44,207 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:40:44,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:40:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:40:44,364 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 04:40:44,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:40:44,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2024-11-25 04:40:44,526 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2024-11-25 04:40:44,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-25 04:40:44,527 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:40:44,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:40:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:40:44,688 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 04:40:45,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:40:45,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-25 04:40:45,067 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-25 04:40:45,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-25 04:40:45,068 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:40:45,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:40:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:40:45,321 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 04:40:45,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:40:45,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 8 states and 7 transitions. [2024-11-25 04:40:45,814 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2024-11-25 04:40:45,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-25 04:40:45,814 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:40:45,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:40:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:40:46,095 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 04:40:46,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:40:46,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 6 states and 5 transitions. [2024-11-25 04:40:46,921 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2024-11-25 04:40:46,921 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-25 04:40:46,922 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2024-11-25 04:40:46,929 INFO L726 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2024-11-25 04:40:46,974 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE(line -1) no Hoare annotation was computed. [2024-11-25 04:40:46,974 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-25 04:40:46,974 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE(line -1) no Hoare annotation was computed. [2024-11-25 04:40:46,974 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK(lines 10 26) no Hoare annotation was computed. [2024-11-25 04:40:46,974 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-25 04:40:46,974 INFO L77 FloydHoareUtils]: At program point main_returnLabel#1(lines 10 26) the Hoare annotation is: (= |ULTIMATE.start_main_old_#valid#1| |#valid|) [2024-11-25 04:40:46,975 INFO L75 FloydHoareUtils]: For program point L3(line 3) no Hoare annotation was computed. [2024-11-25 04:40:46,975 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE(line -1) no Hoare annotation was computed. [2024-11-25 04:40:46,975 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE(line -1) no Hoare annotation was computed. [2024-11-25 04:40:46,975 INFO L77 FloydHoareUtils]: At program point L18(line 18) the Hoare annotation is: (and (= (select |#valid| |ULTIMATE.start_main_~p1~0#1.base|) 1) (<= 0 |ULTIMATE.start_main_~p1~0#1.offset|) (not (= |ULTIMATE.start_main_~#b~0#1.base| |ULTIMATE.start_main_~#a~0#1.base|)) (= (store (store |#valid| |ULTIMATE.start_main_~#a~0#1.base| 0) |ULTIMATE.start_main_~#b~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (<= (+ |ULTIMATE.start_main_~p1~0#1.offset| 4) (select |#length| |ULTIMATE.start_main_~p1~0#1.base|)) (= (select (select |#memory_int| |ULTIMATE.start_main_~p1~0#1.base|) |ULTIMATE.start_main_~p1~0#1.offset|) 0)) [2024-11-25 04:40:46,975 INFO L77 FloydHoareUtils]: At program point L18-1(lines 18 20) the Hoare annotation is: (and (= |ULTIMATE.start_main_#t~mem5#1| 0) (not (= |ULTIMATE.start_main_~#b~0#1.base| |ULTIMATE.start_main_~#a~0#1.base|)) (= (store (store |#valid| |ULTIMATE.start_main_~#a~0#1.base| 0) |ULTIMATE.start_main_~#b~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|)) [2024-11-25 04:40:46,975 INFO L77 FloydHoareUtils]: At program point L16(line 16) the Hoare annotation is: (and (= |ULTIMATE.start_main_~p1~0#1.base| |ULTIMATE.start_main_~#a~0#1.base|) (= |ULTIMATE.start_main_#t~ret4#1| 0) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~#a~0#1.base|) 1) (not (= |ULTIMATE.start_main_~#b~0#1.base| |ULTIMATE.start_main_~#a~0#1.base|)) (= (store (store |#valid| |ULTIMATE.start_main_~#a~0#1.base| 0) |ULTIMATE.start_main_~#b~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (= |ULTIMATE.start_main_~p1~0#1.offset| 0) (= (select |#length| |ULTIMATE.start_main_~#a~0#1.base|) 4)) [2024-11-25 04:40:46,976 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK(line 3) no Hoare annotation was computed. [2024-11-25 04:40:46,982 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~mem5 [2024-11-25 04:40:46,985 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#b~0!base [2024-11-25 04:40:46,985 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!base [2024-11-25 04:40:46,985 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: ArrayStoreExpression [2024-11-25 04:40:46,985 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: main_old_#valid#1 [2024-11-25 04:40:46,986 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: main_old_#valid#1 [2024-11-25 04:40:46,986 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-25 04:40:46,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 04:40:46 ImpRootNode [2024-11-25 04:40:46,987 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 04:40:46,988 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 04:40:46,988 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 04:40:46,988 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 04:40:46,989 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:40:43" (3/4) ... [2024-11-25 04:40:46,991 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-25 04:40:46,998 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-25 04:40:46,998 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-25 04:40:46,998 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-25 04:40:46,998 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-25 04:40:47,077 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cb8011-2d4f-41da-afb6-89f16c4b5a90/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 04:40:47,077 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cb8011-2d4f-41da-afb6-89f16c4b5a90/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 04:40:47,078 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 04:40:47,079 INFO L158 Benchmark]: Toolchain (without parser) took 4353.13ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 119.4MB in the beginning and 380.0MB in the end (delta: -260.5MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2024-11-25 04:40:47,079 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 142.6MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:40:47,080 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.69ms. Allocated memory is still 142.6MB. Free memory was 119.2MB in the beginning and 108.8MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:40:47,080 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.47ms. Allocated memory is still 142.6MB. Free memory was 108.8MB in the beginning and 107.8MB in the end (delta: 939.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:40:47,080 INFO L158 Benchmark]: Boogie Preprocessor took 15.74ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 106.9MB in the end (delta: 719.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:40:47,081 INFO L158 Benchmark]: RCFGBuilder took 317.72ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 94.0MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 04:40:47,081 INFO L158 Benchmark]: CodeCheck took 3629.04ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 94.0MB in the beginning and 383.6MB in the end (delta: -289.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:40:47,082 INFO L158 Benchmark]: Witness Printer took 89.89ms. Allocated memory is still 427.8MB. Free memory was 383.6MB in the beginning and 380.0MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:40:47,084 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, 13 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 190 IncrementalHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 1 mSDtfsCounter, 190 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1050 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 113 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 10]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 142.6MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.69ms. Allocated memory is still 142.6MB. Free memory was 119.2MB in the beginning and 108.8MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.47ms. Allocated memory is still 142.6MB. Free memory was 108.8MB in the beginning and 107.8MB in the end (delta: 939.3kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.74ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 106.9MB in the end (delta: 719.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 317.72ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 94.0MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 3629.04ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 94.0MB in the beginning and 383.6MB in the end (delta: -289.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 89.89ms. Allocated memory is still 427.8MB. Free memory was 383.6MB in the beginning and 380.0MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #t~mem5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#b~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: ArrayStoreExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: main_old_#valid#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: main_old_#valid#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid RESULT: Ultimate proved your program to be correct! [2024-11-25 04:40:47,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cb8011-2d4f-41da-afb6-89f16c4b5a90/bin/ukojak-verify-ENZ3QT5qd3/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