./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-regression/test_union_cast.c_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1b46d9-6b0e-4b1e-a839-f1b7473e3bc8/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1b46d9-6b0e-4b1e-a839-f1b7473e3bc8/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1b46d9-6b0e-4b1e-a839-f1b7473e3bc8/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1b46d9-6b0e-4b1e-a839-f1b7473e3bc8/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-regression/test_union_cast.c_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1b46d9-6b0e-4b1e-a839-f1b7473e3bc8/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1b46d9-6b0e-4b1e-a839-f1b7473e3bc8/bin/ukojak-verify-Qdu7aM0XO9 --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 ce4995349d24449aa4238d5b91c222d154caecb38e46c9add0a28b7c652c35ae --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:56:46,964 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:56:47,042 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1b46d9-6b0e-4b1e-a839-f1b7473e3bc8/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-12-03 00:56:47,048 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 00:56:47,049 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 00:56:47,076 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:56:47,077 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:56:47,078 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:56:47,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:56:47,079 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 00:56:47,080 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 00:56:47,080 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 00:56:47,081 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:56:47,082 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-03 00:56:47,082 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-03 00:56:47,083 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-03 00:56:47,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:56:47,084 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 00:56:47,085 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 00:56:47,086 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:56:47,086 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:56:47,089 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:56:47,090 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:56:47,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:56:47,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:56:47,092 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:56:47,092 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:56:47,093 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 00:56:47,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 00:56:47,093 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_3f1b46d9-6b0e-4b1e-a839-f1b7473e3bc8/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1b46d9-6b0e-4b1e-a839-f1b7473e3bc8/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce4995349d24449aa4238d5b91c222d154caecb38e46c9add0a28b7c652c35ae [2023-12-03 00:56:47,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:56:47,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:56:47,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:56:47,366 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:56:47,366 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:56:47,368 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1b46d9-6b0e-4b1e-a839-f1b7473e3bc8/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/ldv-regression/test_union_cast.c_1.i [2023-12-03 00:56:50,775 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:56:50,995 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:56:50,996 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1b46d9-6b0e-4b1e-a839-f1b7473e3bc8/sv-benchmarks/c/ldv-regression/test_union_cast.c_1.i [2023-12-03 00:56:51,003 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1b46d9-6b0e-4b1e-a839-f1b7473e3bc8/bin/ukojak-verify-Qdu7aM0XO9/data/72fe3f5ee/1ee77f4e991a4250961efb91ce50652d/FLAG1828b7dda [2023-12-03 00:56:51,021 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1b46d9-6b0e-4b1e-a839-f1b7473e3bc8/bin/ukojak-verify-Qdu7aM0XO9/data/72fe3f5ee/1ee77f4e991a4250961efb91ce50652d [2023-12-03 00:56:51,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:56:51,026 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:56:51,028 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:56:51,028 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:56:51,034 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:56:51,035 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:56:51" (1/1) ... [2023-12-03 00:56:51,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e077af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:56:51, skipping insertion in model container [2023-12-03 00:56:51,037 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:56:51" (1/1) ... [2023-12-03 00:56:51,062 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:56:51,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:56:51,240 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:56:51,256 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:56:51,276 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:56:51,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:56:51 WrapperNode [2023-12-03 00:56:51,276 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:56:51,278 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:56:51,278 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:56:51,278 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:56:51,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:56:51" (1/1) ... [2023-12-03 00:56:51,297 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:56:51" (1/1) ... [2023-12-03 00:56:51,315 INFO L138 Inliner]: procedures = 15, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 26 [2023-12-03 00:56:51,316 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:56:51,316 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:56:51,316 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:56:51,317 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:56:51,327 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:56:51" (1/1) ... [2023-12-03 00:56:51,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:56:51" (1/1) ... [2023-12-03 00:56:51,330 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:56:51" (1/1) ... [2023-12-03 00:56:51,331 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:56:51" (1/1) ... [2023-12-03 00:56:51,337 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:56:51" (1/1) ... [2023-12-03 00:56:51,339 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:56:51" (1/1) ... [2023-12-03 00:56:51,340 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:56:51" (1/1) ... [2023-12-03 00:56:51,342 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:56:51" (1/1) ... [2023-12-03 00:56:51,344 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:56:51,345 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:56:51,346 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:56:51,346 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:56:51,347 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:56:51" (1/1) ... [2023-12-03 00:56:51,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:56:51,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1b46d9-6b0e-4b1e-a839-f1b7473e3bc8/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:56:51,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1b46d9-6b0e-4b1e-a839-f1b7473e3bc8/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:56:51,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1b46d9-6b0e-4b1e-a839-f1b7473e3bc8/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:56:51,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:56:51,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 00:56:51,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 00:56:51,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-03 00:56:51,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-12-03 00:56:51,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:56:51,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:56:51,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 00:56:51,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 00:56:51,499 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:56:51,501 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:56:51,639 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:56:51,670 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:56:51,670 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 00:56:51,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:56:51 BoogieIcfgContainer [2023-12-03 00:56:51,673 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:56:51,674 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:56:51,674 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:56:51,685 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:56:51,685 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:56:51" (1/1) ... [2023-12-03 00:56:51,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:56:51,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:56:51,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-12-03 00:56:51,760 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-12-03 00:56:51,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-03 00:56:51,763 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:56:51,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:56:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:56:52,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:56:52,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:56:52,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-12-03 00:56:52,049 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-12-03 00:56:52,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-03 00:56:52,049 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:56:52,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:56:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:56:52,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:56:52,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:56:52,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-12-03 00:56:52,300 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-12-03 00:56:52,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-03 00:56:52,301 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:56:52,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:56:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:56:52,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:56:52,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:56:52,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-12-03 00:56:52,362 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-12-03 00:56:52,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-03 00:56:52,363 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:56:52,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:56:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:56:52,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:56:52,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:56:52,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-12-03 00:56:52,597 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-12-03 00:56:52,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 00:56:52,597 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:56:52,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:56:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:56:52,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:56:52,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:56:52,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-12-03 00:56:52,657 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-12-03 00:56:52,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 00:56:52,658 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:56:52,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:56:52,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:56:52,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:56:52,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:56:52,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-12-03 00:56:52,745 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-12-03 00:56:52,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 00:56:52,746 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:56:52,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:56:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:56:52,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:56:53,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:56:53,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 9 states and 8 transitions. [2023-12-03 00:56:53,090 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2023-12-03 00:56:53,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 00:56:53,091 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:56:53,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:56:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:56:53,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:56:53,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:56:53,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 8 states and 7 transitions. [2023-12-03 00:56:53,878 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2023-12-03 00:56:53,878 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 00:56:53,878 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2023-12-03 00:56:53,889 INFO L751 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-12-03 00:56:53,930 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2023-12-03 00:56:53,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 12:56:53 ImpRootNode [2023-12-03 00:56:53,936 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 00:56:53,937 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 00:56:53,937 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 00:56:53,937 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 00:56:53,938 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:56:51" (3/4) ... [2023-12-03 00:56:53,940 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 00:56:53,949 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-12-03 00:56:53,950 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-12-03 00:56:53,950 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-03 00:56:53,950 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 00:56:54,045 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1b46d9-6b0e-4b1e-a839-f1b7473e3bc8/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 00:56:54,045 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1b46d9-6b0e-4b1e-a839-f1b7473e3bc8/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 00:56:54,045 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 00:56:54,046 INFO L158 Benchmark]: Toolchain (without parser) took 3019.94ms. Allocated memory was 155.2MB in the beginning and 207.6MB in the end (delta: 52.4MB). Free memory was 121.4MB in the beginning and 176.8MB in the end (delta: -55.4MB). Peak memory consumption was 94.5MB. Max. memory is 16.1GB. [2023-12-03 00:56:54,047 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 94.4MB. Free memory is still 42.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:56:54,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.06ms. Allocated memory is still 155.2MB. Free memory was 121.4MB in the beginning and 110.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 00:56:54,048 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.78ms. Allocated memory is still 155.2MB. Free memory was 110.9MB in the beginning and 109.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:56:54,049 INFO L158 Benchmark]: Boogie Preprocessor took 28.35ms. Allocated memory is still 155.2MB. Free memory was 109.4MB in the beginning and 108.4MB in the end (delta: 979.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:56:54,049 INFO L158 Benchmark]: RCFGBuilder took 327.31ms. Allocated memory is still 155.2MB. Free memory was 108.4MB in the beginning and 97.5MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 00:56:54,050 INFO L158 Benchmark]: CodeCheck took 2262.08ms. Allocated memory was 155.2MB in the beginning and 207.6MB in the end (delta: 52.4MB). Free memory was 97.5MB in the beginning and 84.9MB in the end (delta: 12.7MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. [2023-12-03 00:56:54,051 INFO L158 Benchmark]: Witness Printer took 108.82ms. Allocated memory is still 207.6MB. Free memory was 84.9MB in the beginning and 176.8MB in the end (delta: -91.9MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2023-12-03 00:56:54,065 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, 17 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 47 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 222 IncrementalHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 2 mSDtfsCounter, 222 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 209 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 110 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 31]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: null * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 94.4MB. Free memory is still 42.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.06ms. Allocated memory is still 155.2MB. Free memory was 121.4MB in the beginning and 110.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.78ms. Allocated memory is still 155.2MB. Free memory was 110.9MB in the beginning and 109.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.35ms. Allocated memory is still 155.2MB. Free memory was 109.4MB in the beginning and 108.4MB in the end (delta: 979.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 327.31ms. Allocated memory is still 155.2MB. Free memory was 108.4MB in the beginning and 97.5MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 2262.08ms. Allocated memory was 155.2MB in the beginning and 207.6MB in the end (delta: 52.4MB). Free memory was 97.5MB in the beginning and 84.9MB in the end (delta: 12.7MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. * Witness Printer took 108.82ms. Allocated memory is still 207.6MB. Free memory was 84.9MB in the beginning and 176.8MB in the end (delta: -91.9MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 00:56:54,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1b46d9-6b0e-4b1e-a839-f1b7473e3bc8/bin/ukojak-verify-Qdu7aM0XO9/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