./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu --witnessprinter.witness.filename witness.graphml --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 3a80fea07b3dad363ac033c87feb8bfcf28a57d2e75bc95b67f90908b133efe1 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:05:28,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:05:28,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:05:28,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:05:28,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:05:28,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:05:28,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:05:28,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:05:28,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:05:28,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:05:28,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:05:28,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:05:28,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:05:28,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:05:28,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:05:28,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:05:28,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:05:28,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:05:28,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:05:28,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:05:28,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:05:28,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:05:28,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:05:28,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:05:28,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:05:28,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:05:28,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:05:28,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:05:28,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:05:28,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:05:28,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:05:28,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:05:28,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:05:28,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:05:28,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:05:28,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:05:28,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:05:28,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:05:28,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:05:28,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:05:28,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:05:28,493 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 15:05:28,521 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:05:28,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:05:28,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:05:28,523 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:05:28,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:05:28,524 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:05:28,524 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:05:28,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:05:28,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:05:28,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:05:28,525 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:05:28,526 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:05:28,526 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:05:28,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:05:28,526 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:05:28,527 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:05:28,527 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:05:28,527 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:05:28,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:05:28,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:05:28,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:05:28,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:05:28,529 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:05:28,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:05:28,529 INFO L138 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_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a80fea07b3dad363ac033c87feb8bfcf28a57d2e75bc95b67f90908b133efe1 [2021-11-23 15:05:28,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:05:28,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:05:28,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:05:28,899 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:05:28,901 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:05:28,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2021-11-23 15:05:28,999 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/data/7d203aabb/4b066d5fd4504dd4815770912b51bbf5/FLAGfd86e773f [2021-11-23 15:05:29,527 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:05:29,528 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2021-11-23 15:05:29,535 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/data/7d203aabb/4b066d5fd4504dd4815770912b51bbf5/FLAGfd86e773f [2021-11-23 15:05:29,879 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/data/7d203aabb/4b066d5fd4504dd4815770912b51bbf5 [2021-11-23 15:05:29,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:05:29,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:05:29,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:05:29,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:05:29,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:05:29,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:05:29" (1/1) ... [2021-11-23 15:05:29,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d632b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:29, skipping insertion in model container [2021-11-23 15:05:29,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:05:29" (1/1) ... [2021-11-23 15:05:29,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:05:29,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:05:30,078 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c[502,515] [2021-11-23 15:05:30,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:05:30,136 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:05:30,154 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c[502,515] [2021-11-23 15:05:30,192 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:05:30,207 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:05:30,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:30 WrapperNode [2021-11-23 15:05:30,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:05:30,217 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:05:30,217 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:05:30,218 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:05:30,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:30" (1/1) ... [2021-11-23 15:05:30,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:30" (1/1) ... [2021-11-23 15:05:30,283 INFO L137 Inliner]: procedures = 19, calls = 24, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 98 [2021-11-23 15:05:30,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:05:30,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:05:30,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:05:30,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:05:30,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:30" (1/1) ... [2021-11-23 15:05:30,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:30" (1/1) ... [2021-11-23 15:05:30,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:30" (1/1) ... [2021-11-23 15:05:30,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:30" (1/1) ... [2021-11-23 15:05:30,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:30" (1/1) ... [2021-11-23 15:05:30,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:30" (1/1) ... [2021-11-23 15:05:30,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:30" (1/1) ... [2021-11-23 15:05:30,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:05:30,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:05:30,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:05:30,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:05:30,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:30" (1/1) ... [2021-11-23 15:05:30,350 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:05:30,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:05:30,390 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:05:30,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:05:30,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:05:30,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:05:30,444 INFO L130 BoogieDeclarations]: Found specification of procedure check [2021-11-23 15:05:30,445 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2021-11-23 15:05:30,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:05:30,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:05:30,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:05:30,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:05:30,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:05:30,520 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:05:30,521 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:05:30,725 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:05:30,763 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:05:30,768 INFO L158 Benchmark]: Toolchain (without parser) took 883.30ms. Allocated memory is still 98.6MB. Free memory was 57.8MB in the beginning and 55.4MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:05:30,769 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 98.6MB. Free memory was 74.2MB in the beginning and 74.1MB in the end (delta: 45.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:05:30,770 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.94ms. Allocated memory is still 98.6MB. Free memory was 57.6MB in the beginning and 73.1MB in the end (delta: -15.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 15:05:30,771 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.00ms. Allocated memory is still 98.6MB. Free memory was 73.1MB in the beginning and 71.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:05:30,772 INFO L158 Benchmark]: Boogie Preprocessor took 53.40ms. Allocated memory is still 98.6MB. Free memory was 71.2MB in the beginning and 69.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:05:30,773 INFO L158 Benchmark]: RCFGBuilder took 426.13ms. Allocated memory is still 98.6MB. Free memory was 69.8MB in the beginning and 55.4MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 15:05:30,777 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63ms. Allocated memory is still 98.6MB. Free memory was 74.2MB in the beginning and 74.1MB in the end (delta: 45.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.94ms. Allocated memory is still 98.6MB. Free memory was 57.6MB in the beginning and 73.1MB in the end (delta: -15.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.00ms. Allocated memory is still 98.6MB. Free memory was 73.1MB in the beginning and 71.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.40ms. Allocated memory is still 98.6MB. Free memory was 71.2MB in the beginning and 69.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 426.13ms. Allocated memory is still 98.6MB. Free memory was 69.8MB in the beginning and 55.4MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:05:30,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu --witnessprinter.witness.filename witness.graphml --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 3a80fea07b3dad363ac033c87feb8bfcf28a57d2e75bc95b67f90908b133efe1 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:05:33,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:05:33,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:05:33,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:05:33,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:05:33,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:05:33,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:05:33,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:05:33,451 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:05:33,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:05:33,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:05:33,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:05:33,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:05:33,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:05:33,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:05:33,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:05:33,480 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:05:33,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:05:33,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:05:33,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:05:33,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:05:33,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:05:33,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:05:33,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:05:33,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:05:33,508 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:05:33,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:05:33,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:05:33,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:05:33,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:05:33,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:05:33,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:05:33,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:05:33,519 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:05:33,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:05:33,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:05:33,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:05:33,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:05:33,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:05:33,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:05:33,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:05:33,532 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf [2021-11-23 15:05:33,576 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:05:33,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:05:33,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:05:33,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:05:33,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:05:33,580 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:05:33,581 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:05:33,581 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:05:33,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:05:33,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:05:33,582 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:05:33,583 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:05:33,583 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:05:33,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:05:33,583 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:05:33,584 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:05:33,584 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:05:33,584 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:05:33,584 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:05:33,585 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:05:33,585 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:05:33,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:05:33,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:05:33,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:05:33,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:05:33,586 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:05:33,586 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:05:33,587 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:05:33,587 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:05:33,587 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a80fea07b3dad363ac033c87feb8bfcf28a57d2e75bc95b67f90908b133efe1 [2021-11-23 15:05:33,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:05:34,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:05:34,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:05:34,038 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:05:34,039 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:05:34,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2021-11-23 15:05:34,122 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/data/73147a76e/d3ba76f5f5f34aee995eb1f9b07f9165/FLAG058cbc8de [2021-11-23 15:05:34,740 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:05:34,741 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2021-11-23 15:05:34,749 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/data/73147a76e/d3ba76f5f5f34aee995eb1f9b07f9165/FLAG058cbc8de [2021-11-23 15:05:35,095 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/data/73147a76e/d3ba76f5f5f34aee995eb1f9b07f9165 [2021-11-23 15:05:35,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:05:35,101 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:05:35,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:05:35,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:05:35,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:05:35,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:05:35" (1/1) ... [2021-11-23 15:05:35,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36ecfe6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:35, skipping insertion in model container [2021-11-23 15:05:35,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:05:35" (1/1) ... [2021-11-23 15:05:35,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:05:35,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:05:35,282 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c[502,515] [2021-11-23 15:05:35,322 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:05:35,348 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:05:35,370 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c[502,515] [2021-11-23 15:05:35,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:05:35,476 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:05:35,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:35 WrapperNode [2021-11-23 15:05:35,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:05:35,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:05:35,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:05:35,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:05:35,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:35" (1/1) ... [2021-11-23 15:05:35,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:35" (1/1) ... [2021-11-23 15:05:35,572 INFO L137 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 94 [2021-11-23 15:05:35,573 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:05:35,574 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:05:35,574 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:05:35,574 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:05:35,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:35" (1/1) ... [2021-11-23 15:05:35,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:35" (1/1) ... [2021-11-23 15:05:35,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:35" (1/1) ... [2021-11-23 15:05:35,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:35" (1/1) ... [2021-11-23 15:05:35,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:35" (1/1) ... [2021-11-23 15:05:35,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:35" (1/1) ... [2021-11-23 15:05:35,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:35" (1/1) ... [2021-11-23 15:05:35,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:05:35,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:05:35,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:05:35,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:05:35,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:35" (1/1) ... [2021-11-23 15:05:35,642 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:05:35,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:05:35,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:05:35,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:05:35,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:05:35,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:05:35,728 INFO L130 BoogieDeclarations]: Found specification of procedure check [2021-11-23 15:05:35,728 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2021-11-23 15:05:35,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:05:35,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:05:35,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:05:35,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:05:35,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:05:35,857 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:05:35,859 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:05:36,192 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:05:36,226 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:05:36,230 INFO L158 Benchmark]: Toolchain (without parser) took 1128.78ms. Allocated memory is still 75.5MB. Free memory was 53.2MB in the beginning and 39.4MB in the end (delta: 13.8MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2021-11-23 15:05:36,231 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 54.5MB. Free memory was 34.8MB in the beginning and 34.7MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:05:36,232 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.82ms. Allocated memory is still 75.5MB. Free memory was 52.9MB in the beginning and 58.3MB in the end (delta: -5.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 15:05:36,238 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.31ms. Allocated memory is still 75.5MB. Free memory was 58.3MB in the beginning and 56.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:05:36,239 INFO L158 Benchmark]: Boogie Preprocessor took 58.39ms. Allocated memory is still 75.5MB. Free memory was 56.2MB in the beginning and 55.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:05:36,240 INFO L158 Benchmark]: RCFGBuilder took 595.37ms. Allocated memory is still 75.5MB. Free memory was 55.0MB in the beginning and 39.4MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 15:05:36,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 54.5MB. Free memory was 34.8MB in the beginning and 34.7MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.82ms. Allocated memory is still 75.5MB. Free memory was 52.9MB in the beginning and 58.3MB in the end (delta: -5.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.31ms. Allocated memory is still 75.5MB. Free memory was 58.3MB in the beginning and 56.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.39ms. Allocated memory is still 75.5MB. Free memory was 56.2MB in the beginning and 55.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 595.37ms. Allocated memory is still 75.5MB. Free memory was 55.0MB in the beginning and 39.4MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:05:36,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b57d28-fc1f-4a7a-a140-a9cc94a493d8/bin/ukojak-CwSLpZB5Qu/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: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable