./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/dll2c_append_equal.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_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/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_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2c_append_equal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/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_ddf07f68-fd58-4124-a7c9-081d0db29aae/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 208d04089fa2c50848123d29dd18b6b2021c1b591464bd422fd10955aaeec7fc --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:31:19,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:31:19,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:31:19,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:31:19,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:31:19,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:31:19,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:31:19,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:31:19,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:31:19,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:31:19,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:31:19,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:31:19,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:31:19,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:31:19,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:31:19,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:31:19,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:31:19,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:31:19,785 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:31:19,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:31:19,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:31:19,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:31:19,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:31:19,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:31:19,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:31:19,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:31:19,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:31:19,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:31:19,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:31:19,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:31:19,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:31:19,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:31:19,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:31:19,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:31:19,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:31:19,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:31:19,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:31:19,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:31:19,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:31:19,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:31:19,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:31:19,829 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 15:31:19,876 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:31:19,876 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:31:19,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:31:19,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:31:19,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:31:19,880 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:31:19,880 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:31:19,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:31:19,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:31:19,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:31:19,889 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:31:19,890 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:31:19,890 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:31:19,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:31:19,890 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:31:19,891 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:31:19,891 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:31:19,891 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:31:19,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:31:19,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:31:19,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:31:19,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:31:19,893 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:31:19,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:31:19,893 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_ddf07f68-fd58-4124-a7c9-081d0db29aae/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 208d04089fa2c50848123d29dd18b6b2021c1b591464bd422fd10955aaeec7fc [2021-11-23 15:31:20,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:31:20,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:31:20,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:31:20,246 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:31:20,247 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:31:20,250 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-simple/dll2c_append_equal.i [2021-11-23 15:31:20,332 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu/data/0a287ef79/74efe70a0aeb4945ae001673cacd0f0b/FLAG316927468 [2021-11-23 15:31:20,968 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:31:20,968 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/sv-benchmarks/c/list-simple/dll2c_append_equal.i [2021-11-23 15:31:20,997 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu/data/0a287ef79/74efe70a0aeb4945ae001673cacd0f0b/FLAG316927468 [2021-11-23 15:31:21,220 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu/data/0a287ef79/74efe70a0aeb4945ae001673cacd0f0b [2021-11-23 15:31:21,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:31:21,224 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:31:21,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:31:21,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:31:21,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:31:21,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:31:21" (1/1) ... [2021-11-23 15:31:21,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e0c9838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:21, skipping insertion in model container [2021-11-23 15:31:21,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:31:21" (1/1) ... [2021-11-23 15:31:21,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:31:21,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:31:21,828 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_ddf07f68-fd58-4124-a7c9-081d0db29aae/sv-benchmarks/c/list-simple/dll2c_append_equal.i[24585,24598] [2021-11-23 15:31:21,834 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:31:21,850 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:31:21,922 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_ddf07f68-fd58-4124-a7c9-081d0db29aae/sv-benchmarks/c/list-simple/dll2c_append_equal.i[24585,24598] [2021-11-23 15:31:21,927 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:31:21,972 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:31:21,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:21 WrapperNode [2021-11-23 15:31:21,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:31:21,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:31:21,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:31:21,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:31:21,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:21" (1/1) ... [2021-11-23 15:31:22,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:21" (1/1) ... [2021-11-23 15:31:22,074 INFO L137 Inliner]: procedures = 127, calls = 47, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 168 [2021-11-23 15:31:22,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:31:22,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:31:22,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:31:22,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:31:22,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:21" (1/1) ... [2021-11-23 15:31:22,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:21" (1/1) ... [2021-11-23 15:31:22,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:21" (1/1) ... [2021-11-23 15:31:22,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:21" (1/1) ... [2021-11-23 15:31:22,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:21" (1/1) ... [2021-11-23 15:31:22,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:21" (1/1) ... [2021-11-23 15:31:22,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:21" (1/1) ... [2021-11-23 15:31:22,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:31:22,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:31:22,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:31:22,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:31:22,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:21" (1/1) ... [2021-11-23 15:31:22,182 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:31:22,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:31:22,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:31:22,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:31:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:31:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:31:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:31:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:31:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:31:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:31:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:31:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:31:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:31:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:31:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:31:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:31:22,441 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:31:22,443 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:31:22,478 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:31:22,483 INFO L158 Benchmark]: Toolchain (without parser) took 1257.93ms. Allocated memory is still 119.5MB. Free memory was 81.7MB in the beginning and 71.4MB in the end (delta: 10.3MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2021-11-23 15:31:22,484 INFO L158 Benchmark]: CDTParser took 0.67ms. Allocated memory is still 119.5MB. Free memory was 92.6MB in the beginning and 92.6MB in the end (delta: 24.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:31:22,485 INFO L158 Benchmark]: CACSL2BoogieTranslator took 744.34ms. Allocated memory is still 119.5MB. Free memory was 81.5MB in the beginning and 83.8MB in the end (delta: -2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:31:22,486 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.66ms. Allocated memory is still 119.5MB. Free memory was 83.8MB in the beginning and 81.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:31:22,487 INFO L158 Benchmark]: Boogie Preprocessor took 87.24ms. Allocated memory is still 119.5MB. Free memory was 81.2MB in the beginning and 79.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:31:22,488 INFO L158 Benchmark]: RCFGBuilder took 316.00ms. Allocated memory is still 119.5MB. Free memory was 79.7MB in the beginning and 71.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:31:22,493 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67ms. Allocated memory is still 119.5MB. Free memory was 92.6MB in the beginning and 92.6MB in the end (delta: 24.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 744.34ms. Allocated memory is still 119.5MB. Free memory was 81.5MB in the beginning and 83.8MB in the end (delta: -2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.66ms. Allocated memory is still 119.5MB. Free memory was 83.8MB in the beginning and 81.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.24ms. Allocated memory is still 119.5MB. Free memory was 81.2MB in the beginning and 79.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 316.00ms. Allocated memory is still 119.5MB. Free memory was 79.7MB in the beginning and 71.4MB in the end (delta: 8.4MB). 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 15:31:22,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/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_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/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_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2c_append_equal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/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_ddf07f68-fd58-4124-a7c9-081d0db29aae/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 208d04089fa2c50848123d29dd18b6b2021c1b591464bd422fd10955aaeec7fc --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:31:25,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:31:25,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:31:25,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:31:25,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:31:25,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:31:25,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:31:25,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:31:25,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:31:25,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:31:25,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:31:25,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:31:25,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:31:25,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:31:25,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:31:25,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:31:25,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:31:25,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:31:25,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:31:25,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:31:25,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:31:25,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:31:25,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:31:25,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:31:25,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:31:25,381 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:31:25,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:31:25,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:31:25,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:31:25,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:31:25,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:31:25,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:31:25,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:31:25,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:31:25,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:31:25,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:31:25,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:31:25,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:31:25,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:31:25,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:31:25,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:31:25,396 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf [2021-11-23 15:31:25,437 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:31:25,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:31:25,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:31:25,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:31:25,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:31:25,442 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:31:25,442 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:31:25,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:31:25,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:31:25,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:31:25,445 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:31:25,445 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:31:25,445 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:31:25,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:31:25,446 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:31:25,446 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:31:25,446 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:31:25,447 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:31:25,447 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:31:25,447 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:31:25,447 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:31:25,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:31:25,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:31:25,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:31:25,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:31:25,449 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:31:25,449 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:31:25,449 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:31:25,449 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:31:25,450 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_ddf07f68-fd58-4124-a7c9-081d0db29aae/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 208d04089fa2c50848123d29dd18b6b2021c1b591464bd422fd10955aaeec7fc [2021-11-23 15:31:25,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:31:26,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:31:26,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:31:26,010 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:31:26,012 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:31:26,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-simple/dll2c_append_equal.i [2021-11-23 15:31:26,115 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu/data/6c24d4a61/3b1a902ecb7e46138db473a096d99bf8/FLAGa29211232 [2021-11-23 15:31:26,849 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:31:26,849 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/sv-benchmarks/c/list-simple/dll2c_append_equal.i [2021-11-23 15:31:26,871 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu/data/6c24d4a61/3b1a902ecb7e46138db473a096d99bf8/FLAGa29211232 [2021-11-23 15:31:27,064 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu/data/6c24d4a61/3b1a902ecb7e46138db473a096d99bf8 [2021-11-23 15:31:27,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:31:27,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:31:27,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:31:27,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:31:27,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:31:27,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:31:27" (1/1) ... [2021-11-23 15:31:27,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cff3d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:27, skipping insertion in model container [2021-11-23 15:31:27,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:31:27" (1/1) ... [2021-11-23 15:31:27,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:31:27,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:31:27,721 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_ddf07f68-fd58-4124-a7c9-081d0db29aae/sv-benchmarks/c/list-simple/dll2c_append_equal.i[24585,24598] [2021-11-23 15:31:27,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:31:27,745 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:31:27,830 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_ddf07f68-fd58-4124-a7c9-081d0db29aae/sv-benchmarks/c/list-simple/dll2c_append_equal.i[24585,24598] [2021-11-23 15:31:27,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:31:27,899 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:31:27,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:27 WrapperNode [2021-11-23 15:31:27,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:31:27,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:31:27,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:31:27,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:31:27,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:27" (1/1) ... [2021-11-23 15:31:27,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:27" (1/1) ... [2021-11-23 15:31:28,013 INFO L137 Inliner]: procedures = 130, calls = 47, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 169 [2021-11-23 15:31:28,014 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:31:28,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:31:28,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:31:28,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:31:28,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:27" (1/1) ... [2021-11-23 15:31:28,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:27" (1/1) ... [2021-11-23 15:31:28,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:27" (1/1) ... [2021-11-23 15:31:28,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:27" (1/1) ... [2021-11-23 15:31:28,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:27" (1/1) ... [2021-11-23 15:31:28,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:27" (1/1) ... [2021-11-23 15:31:28,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:27" (1/1) ... [2021-11-23 15:31:28,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:31:28,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:31:28,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:31:28,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:31:28,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:27" (1/1) ... [2021-11-23 15:31:28,114 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:31:28,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:31:28,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:31:28,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:31:28,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:31:28,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:31:28,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:31:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:31:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:31:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:31:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:31:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:31:28,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:31:28,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:31:28,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:31:28,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:31:28,415 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:31:28,417 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:31:28,466 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:31:28,471 INFO L158 Benchmark]: Toolchain (without parser) took 1399.90ms. Allocated memory is still 62.9MB. Free memory was 41.1MB in the beginning and 40.6MB in the end (delta: 490.3kB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2021-11-23 15:31:28,472 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 62.9MB. Free memory is still 44.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:31:28,473 INFO L158 Benchmark]: CACSL2BoogieTranslator took 828.58ms. Allocated memory is still 62.9MB. Free memory was 40.8MB in the beginning and 37.3MB in the end (delta: 3.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 15:31:28,474 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.20ms. Allocated memory is still 62.9MB. Free memory was 37.1MB in the beginning and 34.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:31:28,475 INFO L158 Benchmark]: Boogie Preprocessor took 88.56ms. Allocated memory is still 62.9MB. Free memory was 34.8MB in the beginning and 32.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:31:28,476 INFO L158 Benchmark]: RCFGBuilder took 364.39ms. Allocated memory is still 62.9MB. Free memory was 32.5MB in the beginning and 40.6MB in the end (delta: -8.1MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2021-11-23 15:31:28,480 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 62.9MB. Free memory is still 44.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 828.58ms. Allocated memory is still 62.9MB. Free memory was 40.8MB in the beginning and 37.3MB in the end (delta: 3.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.20ms. Allocated memory is still 62.9MB. Free memory was 37.1MB in the beginning and 34.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.56ms. Allocated memory is still 62.9MB. Free memory was 34.8MB in the beginning and 32.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 364.39ms. Allocated memory is still 62.9MB. Free memory was 32.5MB in the beginning and 40.6MB in the end (delta: -8.1MB). Peak memory consumption was 11.0MB. 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 15:31:28,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf07f68-fd58-4124-a7c9-081d0db29aae/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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable