./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/dll2n_append_unequal.i --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_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/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_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2n_append_unequal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/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_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/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 8e4e2611155a39995b0fc64ec45d64e4c98f789d2737326ee819380629347be0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:53:28,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:53:28,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:53:28,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:53:28,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:53:28,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:53:28,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:53:28,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:53:28,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:53:28,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:53:28,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:53:28,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:53:28,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:53:28,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:53:28,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:53:28,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:53:28,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:53:28,690 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:53:28,692 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:53:28,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:53:28,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:53:28,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:53:28,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:53:28,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:53:28,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:53:28,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:53:28,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:53:28,719 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:53:28,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:53:28,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:53:28,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:53:28,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:53:28,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:53:28,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:53:28,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:53:28,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:53:28,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:53:28,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:53:28,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:53:28,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:53:28,731 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:53:28,732 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 15:53:28,783 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:53:28,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:53:28,786 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:53:28,786 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:53:28,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:53:28,787 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:53:28,787 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:53:28,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:53:28,787 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:53:28,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:53:28,789 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:53:28,789 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:53:28,789 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:53:28,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:53:28,790 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:53:28,790 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:53:28,790 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:53:28,790 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:53:28,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:53:28,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:53:28,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:53:28,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:53:28,792 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:53:28,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:53:28,792 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_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e4e2611155a39995b0fc64ec45d64e4c98f789d2737326ee819380629347be0 [2021-11-23 15:53:29,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:53:29,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:53:29,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:53:29,177 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:53:29,178 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:53:29,180 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-simple/dll2n_append_unequal.i [2021-11-23 15:53:29,267 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu/data/7602f654d/aad92755be5b4050a25b1761c98da24c/FLAG2cceb4c35 [2021-11-23 15:53:29,895 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:53:29,897 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/sv-benchmarks/c/list-simple/dll2n_append_unequal.i [2021-11-23 15:53:29,924 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu/data/7602f654d/aad92755be5b4050a25b1761c98da24c/FLAG2cceb4c35 [2021-11-23 15:53:30,125 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu/data/7602f654d/aad92755be5b4050a25b1761c98da24c [2021-11-23 15:53:30,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:53:30,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:53:30,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:53:30,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:53:30,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:53:30,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:53:30" (1/1) ... [2021-11-23 15:53:30,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6487fc08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:30, skipping insertion in model container [2021-11-23 15:53:30,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:53:30" (1/1) ... [2021-11-23 15:53:30,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:53:30,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:53:30,632 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_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/sv-benchmarks/c/list-simple/dll2n_append_unequal.i[24457,24470] [2021-11-23 15:53:30,643 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:53:30,657 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:53:30,742 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_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/sv-benchmarks/c/list-simple/dll2n_append_unequal.i[24457,24470] [2021-11-23 15:53:30,750 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:53:30,793 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:53:30,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:30 WrapperNode [2021-11-23 15:53:30,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:53:30,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:53:30,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:53:30,797 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:53:30,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:30" (1/1) ... [2021-11-23 15:53:30,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:30" (1/1) ... [2021-11-23 15:53:30,894 INFO L137 Inliner]: procedures = 127, calls = 40, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 155 [2021-11-23 15:53:30,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:53:30,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:53:30,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:53:30,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:53:30,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:30" (1/1) ... [2021-11-23 15:53:30,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:30" (1/1) ... [2021-11-23 15:53:30,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:30" (1/1) ... [2021-11-23 15:53:30,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:30" (1/1) ... [2021-11-23 15:53:30,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:30" (1/1) ... [2021-11-23 15:53:30,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:30" (1/1) ... [2021-11-23 15:53:30,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:30" (1/1) ... [2021-11-23 15:53:30,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:53:30,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:53:30,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:53:30,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:53:30,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:30" (1/1) ... [2021-11-23 15:53:30,995 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:53:31,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:53:31,027 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:53:31,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:53:31,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:53:31,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:53:31,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:53:31,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:53:31,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:53:31,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:53:31,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:53:31,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:53:31,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:53:31,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:53:31,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:53:31,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:53:31,242 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:53:31,244 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:53:31,287 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.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:53:31,292 INFO L158 Benchmark]: Toolchain (without parser) took 1158.67ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 49.7MB in the beginning and 64.0MB in the end (delta: -14.3MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2021-11-23 15:53:31,293 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 88.1MB. Free memory was 67.2MB in the beginning and 67.2MB in the end (delta: 40.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:53:31,294 INFO L158 Benchmark]: CACSL2BoogieTranslator took 661.32ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 49.5MB in the beginning and 76.3MB in the end (delta: -26.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:53:31,295 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.92ms. Allocated memory is still 111.1MB. Free memory was 76.3MB in the beginning and 74.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:53:31,296 INFO L158 Benchmark]: Boogie Preprocessor took 86.27ms. Allocated memory is still 111.1MB. Free memory was 74.0MB in the beginning and 72.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:53:31,297 INFO L158 Benchmark]: RCFGBuilder took 304.91ms. Allocated memory is still 111.1MB. Free memory was 72.2MB in the beginning and 64.0MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:53:31,301 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 88.1MB. Free memory was 67.2MB in the beginning and 67.2MB in the end (delta: 40.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 661.32ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 49.5MB in the beginning and 76.3MB in the end (delta: -26.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.92ms. Allocated memory is still 111.1MB. Free memory was 76.3MB in the beginning and 74.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.27ms. Allocated memory is still 111.1MB. Free memory was 74.0MB in the beginning and 72.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 304.91ms. Allocated memory is still 111.1MB. Free memory was 72.2MB in the beginning and 64.0MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. 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.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:53:31,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/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_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/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_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2n_append_unequal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/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_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/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 8e4e2611155a39995b0fc64ec45d64e4c98f789d2737326ee819380629347be0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:53:33,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:53:33,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:53:33,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:53:33,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:53:33,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:53:33,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:53:33,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:53:33,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:53:33,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:53:33,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:53:33,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:53:33,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:53:33,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:53:33,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:53:33,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:53:33,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:53:33,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:53:33,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:53:34,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:53:34,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:53:34,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:53:34,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:53:34,014 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:53:34,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:53:34,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:53:34,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:53:34,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:53:34,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:53:34,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:53:34,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:53:34,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:53:34,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:53:34,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:53:34,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:53:34,035 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:53:34,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:53:34,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:53:34,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:53:34,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:53:34,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:53:34,058 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf [2021-11-23 15:53:34,103 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:53:34,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:53:34,106 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:53:34,106 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:53:34,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:53:34,107 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:53:34,107 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:53:34,107 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:53:34,107 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:53:34,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:53:34,109 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:53:34,109 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:53:34,109 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:53:34,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:53:34,110 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:53:34,110 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:53:34,110 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:53:34,110 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:53:34,111 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:53:34,111 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:53:34,111 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:53:34,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:53:34,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:53:34,112 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:53:34,112 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:53:34,113 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:53:34,113 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:53:34,113 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:53:34,113 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:53:34,113 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_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e4e2611155a39995b0fc64ec45d64e4c98f789d2737326ee819380629347be0 [2021-11-23 15:53:34,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:53:34,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:53:34,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:53:34,551 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:53:34,552 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:53:34,554 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-simple/dll2n_append_unequal.i [2021-11-23 15:53:34,624 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu/data/3d17548d0/e8eeb60615014d4481fc22a2e07b6726/FLAG2ecc71adb [2021-11-23 15:53:35,250 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:53:35,252 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/sv-benchmarks/c/list-simple/dll2n_append_unequal.i [2021-11-23 15:53:35,273 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu/data/3d17548d0/e8eeb60615014d4481fc22a2e07b6726/FLAG2ecc71adb [2021-11-23 15:53:35,482 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu/data/3d17548d0/e8eeb60615014d4481fc22a2e07b6726 [2021-11-23 15:53:35,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:53:35,488 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:53:35,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:53:35,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:53:35,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:53:35,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:53:35" (1/1) ... [2021-11-23 15:53:35,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@431dfded and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:35, skipping insertion in model container [2021-11-23 15:53:35,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:53:35" (1/1) ... [2021-11-23 15:53:35,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:53:35,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:53:35,852 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_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/sv-benchmarks/c/list-simple/dll2n_append_unequal.i[24457,24470] [2021-11-23 15:53:35,863 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:53:35,899 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:53:35,945 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_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/sv-benchmarks/c/list-simple/dll2n_append_unequal.i[24457,24470] [2021-11-23 15:53:35,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:53:35,984 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:53:35,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:35 WrapperNode [2021-11-23 15:53:35,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:53:35,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:53:35,987 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:53:35,987 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:53:35,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:35" (1/1) ... [2021-11-23 15:53:36,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:35" (1/1) ... [2021-11-23 15:53:36,044 INFO L137 Inliner]: procedures = 130, calls = 40, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 156 [2021-11-23 15:53:36,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:53:36,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:53:36,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:53:36,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:53:36,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:35" (1/1) ... [2021-11-23 15:53:36,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:35" (1/1) ... [2021-11-23 15:53:36,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:35" (1/1) ... [2021-11-23 15:53:36,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:35" (1/1) ... [2021-11-23 15:53:36,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:35" (1/1) ... [2021-11-23 15:53:36,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:35" (1/1) ... [2021-11-23 15:53:36,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:35" (1/1) ... [2021-11-23 15:53:36,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:53:36,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:53:36,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:53:36,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:53:36,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:35" (1/1) ... [2021-11-23 15:53:36,108 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:53:36,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:53:36,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:53:36,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:53:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:53:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:53:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:53:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:53:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:53:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:53:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:53:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:53:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:53:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:53:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:53:36,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:53:36,296 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:53:36,297 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:53:36,329 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.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:53:36,332 INFO L158 Benchmark]: Toolchain (without parser) took 843.55ms. Allocated memory is still 62.9MB. Free memory was 41.1MB in the beginning and 27.0MB in the end (delta: 14.1MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2021-11-23 15:53:36,333 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 62.9MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:53:36,334 INFO L158 Benchmark]: CACSL2BoogieTranslator took 496.16ms. Allocated memory is still 62.9MB. Free memory was 40.9MB in the beginning and 39.6MB in the end (delta: 1.2MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2021-11-23 15:53:36,334 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.13ms. Allocated memory is still 62.9MB. Free memory was 39.6MB in the beginning and 37.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:53:36,335 INFO L158 Benchmark]: Boogie Preprocessor took 45.34ms. Allocated memory is still 62.9MB. Free memory was 37.0MB in the beginning and 35.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:53:36,336 INFO L158 Benchmark]: RCFGBuilder took 238.98ms. Allocated memory is still 62.9MB. Free memory was 35.2MB in the beginning and 27.0MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:53:36,339 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 62.9MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 496.16ms. Allocated memory is still 62.9MB. Free memory was 40.9MB in the beginning and 39.6MB in the end (delta: 1.2MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.13ms. Allocated memory is still 62.9MB. Free memory was 39.6MB in the beginning and 37.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.34ms. Allocated memory is still 62.9MB. Free memory was 37.0MB in the beginning and 35.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 238.98ms. Allocated memory is still 62.9MB. Free memory was 35.2MB in the beginning and 27.0MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. 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.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:53:36,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4bff876-bfa5-4f74-a1c2-1040d5b8c248/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