./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df09d39d-c03a-4fe8-abfc-7518780d2f64/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df09d39d-c03a-4fe8-abfc-7518780d2f64/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df09d39d-c03a-4fe8-abfc-7518780d2f64/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df09d39d-c03a-4fe8-abfc-7518780d2f64/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df09d39d-c03a-4fe8-abfc-7518780d2f64/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df09d39d-c03a-4fe8-abfc-7518780d2f64/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8d4416b38cd75f122474354d64a020f92e3751959548582c6308a6e879679f77 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:42:05,909 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:42:06,034 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df09d39d-c03a-4fe8-abfc-7518780d2f64/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-11-19 02:42:06,043 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:42:06,044 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:42:06,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:42:06,083 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:42:06,084 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:42:06,085 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:42:06,093 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:42:06,094 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:42:06,095 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:42:06,095 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:42:06,098 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:42:06,098 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:42:06,099 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 02:42:06,099 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 02:42:06,100 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:42:06,100 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:42:06,101 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:42:06,101 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:42:06,102 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:42:06,102 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:42:06,103 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:42:06,104 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:42:06,104 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:42:06,105 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:42:06,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:42:06,106 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:42:06,106 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:42:06,108 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:42:06,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:42:06,108 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df09d39d-c03a-4fe8-abfc-7518780d2f64/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df09d39d-c03a-4fe8-abfc-7518780d2f64/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d4416b38cd75f122474354d64a020f92e3751959548582c6308a6e879679f77 [2023-11-19 02:42:06,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:42:06,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:42:06,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:42:06,478 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:42:06,479 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:42:06,481 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df09d39d-c03a-4fe8-abfc-7518780d2f64/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i [2023-11-19 02:42:09,562 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:42:09,923 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:42:09,927 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df09d39d-c03a-4fe8-abfc-7518780d2f64/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i [2023-11-19 02:42:09,959 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df09d39d-c03a-4fe8-abfc-7518780d2f64/bin/ukojak-verify-G8NBE6pJGL/data/f249a8ee4/92c51ac546b04a54ad710e839de01a69/FLAG6abc38a72 [2023-11-19 02:42:09,983 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df09d39d-c03a-4fe8-abfc-7518780d2f64/bin/ukojak-verify-G8NBE6pJGL/data/f249a8ee4/92c51ac546b04a54ad710e839de01a69 [2023-11-19 02:42:09,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:42:09,987 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:42:09,989 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:42:09,989 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:42:09,994 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:42:09,995 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:42:09" (1/1) ... [2023-11-19 02:42:09,997 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d7da4e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:09, skipping insertion in model container [2023-11-19 02:42:09,997 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:42:09" (1/1) ... [2023-11-19 02:42:10,170 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:42:10,765 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:42:10,781 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:42:10,938 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:42:11,005 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:42:11,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:11 WrapperNode [2023-11-19 02:42:11,005 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:42:11,007 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:42:11,007 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:42:11,007 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:42:11,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:11" (1/1) ... [2023-11-19 02:42:11,070 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:11" (1/1) ... [2023-11-19 02:42:11,175 INFO L138 Inliner]: procedures = 177, calls = 350, calls flagged for inlining = 20, calls inlined = 29, statements flattened = 1582 [2023-11-19 02:42:11,176 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:42:11,177 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:42:11,177 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:42:11,177 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:42:11,200 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:11" (1/1) ... [2023-11-19 02:42:11,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:11" (1/1) ... [2023-11-19 02:42:11,221 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:11" (1/1) ... [2023-11-19 02:42:11,221 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:11" (1/1) ... [2023-11-19 02:42:11,301 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:11" (1/1) ... [2023-11-19 02:42:11,324 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:11" (1/1) ... [2023-11-19 02:42:11,332 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:11" (1/1) ... [2023-11-19 02:42:11,343 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:11" (1/1) ... [2023-11-19 02:42:11,362 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:42:11,363 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:42:11,363 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:42:11,363 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:42:11,364 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:11" (1/1) ... [2023-11-19 02:42:11,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:42:11,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df09d39d-c03a-4fe8-abfc-7518780d2f64/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:42:11,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df09d39d-c03a-4fe8-abfc-7518780d2f64/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:42:11,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df09d39d-c03a-4fe8-abfc-7518780d2f64/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:42:11,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 02:42:11,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 02:42:11,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 02:42:11,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:42:11,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 02:42:11,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 02:42:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 02:42:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:42:11,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:42:11,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:42:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:42:11,808 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:42:11,811 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:42:13,992 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:42:15,936 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:42:15,937 INFO L302 CfgBuilder]: Removed 60 assume(true) statements. [2023-11-19 02:42:15,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:42:15 BoogieIcfgContainer [2023-11-19 02:42:15,949 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:42:15,951 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:42:15,951 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:42:15,961 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:42:15,962 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:42:15" (1/1) ... [2023-11-19 02:42:15,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:42:16,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:42:16,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 172 states and 279 transitions. [2023-11-19 02:42:16,060 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 279 transitions. [2023-11-19 02:42:16,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 02:42:16,064 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:42:16,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:42:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:42:16,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:42:16,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:42:16,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 173 states and 281 transitions. [2023-11-19 02:42:16,381 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 281 transitions. [2023-11-19 02:42:16,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 02:42:16,382 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:42:16,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:42:16,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:42:16,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:42:16,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:42:16,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:42:16,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:42:16,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 173 states and 277 transitions. [2023-11-19 02:42:16,539 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 277 transitions. [2023-11-19 02:42:16,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 02:42:16,541 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:42:16,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:42:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:42:16,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:42:16,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:42:16,622 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:42:16,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:42:16,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 173 states and 269 transitions. [2023-11-19 02:42:16,630 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 269 transitions. [2023-11-19 02:42:16,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 02:42:16,632 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:42:16,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:42:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:42:16,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:42:16,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:42:16,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:42:16,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:42:16,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 173 states and 257 transitions. [2023-11-19 02:42:16,764 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 257 transitions. [2023-11-19 02:42:16,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-19 02:42:16,766 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:42:16,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:42:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:42:17,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:42:17,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:42:17,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:42:19,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 02:42:29,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 02:42:29,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:42:29,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 57 states and 79 transitions. [2023-11-19 02:42:29,814 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 79 transitions. [2023-11-19 02:42:29,815 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 02:42:29,816 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2023-11-19 02:42:29,825 INFO L751 CodeCheckObserver]: All specifications hold 11 specifications checked. All of them hold [2023-11-19 02:42:29,880 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,885 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,885 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,885 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,885 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,886 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,886 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,886 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,887 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,888 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,888 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,888 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,888 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,889 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,889 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,889 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,889 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,890 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,890 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2023-11-19 02:42:29,897 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,897 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,898 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,898 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,899 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,899 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,899 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:42:29,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:42:29 ImpRootNode [2023-11-19 02:42:29,901 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:42:29,902 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:42:29,903 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:42:29,903 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:42:29,904 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:42:15" (3/4) ... [2023-11-19 02:42:29,906 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 02:42:29,949 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 117 nodes and edges [2023-11-19 02:42:29,951 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2023-11-19 02:42:29,953 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 02:42:29,955 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 02:42:30,187 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df09d39d-c03a-4fe8-abfc-7518780d2f64/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:42:30,188 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df09d39d-c03a-4fe8-abfc-7518780d2f64/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 02:42:30,189 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:42:30,190 INFO L158 Benchmark]: Toolchain (without parser) took 20202.19ms. Allocated memory was 155.2MB in the beginning and 293.6MB in the end (delta: 138.4MB). Free memory was 112.9MB in the beginning and 140.8MB in the end (delta: -27.9MB). Peak memory consumption was 110.7MB. Max. memory is 16.1GB. [2023-11-19 02:42:30,190 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory is still 88.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:42:30,191 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1017.12ms. Allocated memory is still 155.2MB. Free memory was 112.9MB in the beginning and 93.5MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 02:42:30,191 INFO L158 Benchmark]: Boogie Procedure Inliner took 169.38ms. Allocated memory is still 155.2MB. Free memory was 93.5MB in the beginning and 83.6MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 02:42:30,191 INFO L158 Benchmark]: Boogie Preprocessor took 185.32ms. Allocated memory is still 155.2MB. Free memory was 83.6MB in the beginning and 73.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:42:30,192 INFO L158 Benchmark]: RCFGBuilder took 4586.85ms. Allocated memory was 155.2MB in the beginning and 293.6MB in the end (delta: 138.4MB). Free memory was 73.1MB in the beginning and 138.8MB in the end (delta: -65.7MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB. [2023-11-19 02:42:30,193 INFO L158 Benchmark]: CodeCheck took 13950.99ms. Allocated memory is still 293.6MB. Free memory was 138.8MB in the beginning and 155.4MB in the end (delta: -16.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:42:30,193 INFO L158 Benchmark]: Witness Printer took 286.21ms. Allocated memory is still 293.6MB. Free memory was 155.4MB in the beginning and 140.8MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 02:42:30,196 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, 172 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 13.8s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 357 SdHoareTripleChecker+Valid, 13.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 108 SdHoareTripleChecker+Invalid, 13.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 52 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 108 mSDtfsCounter, 52 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 747 GetRequests, 745 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.2s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 SizeOfPredicates, 0 NumberOfNonLiveVariables, 701 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 699]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 699]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 699]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 699]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 699]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 699]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 699]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 699]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 699]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 699]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 747]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold - InvariantResult [Line: 758]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 758]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 759]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 759]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 759]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 758]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 758]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 758]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 758]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 758]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 758]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 759]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 758]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 758]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 758]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 759]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 751]: Loop Invariant Derived loop invariant: (i == 0) - InvariantResult [Line: 758]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 759]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 758]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 758]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 758]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 758]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory is still 88.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1017.12ms. Allocated memory is still 155.2MB. Free memory was 112.9MB in the beginning and 93.5MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 169.38ms. Allocated memory is still 155.2MB. Free memory was 93.5MB in the beginning and 83.6MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 185.32ms. Allocated memory is still 155.2MB. Free memory was 83.6MB in the beginning and 73.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 4586.85ms. Allocated memory was 155.2MB in the beginning and 293.6MB in the end (delta: 138.4MB). Free memory was 73.1MB in the beginning and 138.8MB in the end (delta: -65.7MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB. * CodeCheck took 13950.99ms. Allocated memory is still 293.6MB. Free memory was 138.8MB in the beginning and 155.4MB in the end (delta: -16.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 286.21ms. Allocated memory is still 293.6MB. Free memory was 155.4MB in the beginning and 140.8MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 02:42:30,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df09d39d-c03a-4fe8-abfc-7518780d2f64/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE