./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7e56cc-2091-47b2-8e14-6cb025a316f5/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7e56cc-2091-47b2-8e14-6cb025a316f5/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7e56cc-2091-47b2-8e14-6cb025a316f5/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7e56cc-2091-47b2-8e14-6cb025a316f5/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7e56cc-2091-47b2-8e14-6cb025a316f5/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7e56cc-2091-47b2-8e14-6cb025a316f5/bin/ukojak-Rh5K9KB4LI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0209a5ecd1f90a7dc207e0462366045d25daa538d59f8499c5199765a86166a3 ................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 03:33:22,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:33:22,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:33:23,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:33:23,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:33:23,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:33:23,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:33:23,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:33:23,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:33:23,046 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:33:23,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:33:23,051 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:33:23,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:33:23,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:33:23,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:33:23,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:33:23,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:33:23,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:33:23,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:33:23,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:33:23,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:33:23,088 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:33:23,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:33:23,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:33:23,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:33:23,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:33:23,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:33:23,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:33:23,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:33:23,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:33:23,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:33:23,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:33:23,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:33:23,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:33:23,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:33:23,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:33:23,116 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:33:23,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:33:23,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:33:23,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:33:23,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:33:23,123 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7e56cc-2091-47b2-8e14-6cb025a316f5/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 03:33:23,189 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:33:23,189 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:33:23,192 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 03:33:23,192 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 03:33:23,194 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:33:23,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:33:23,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:33:23,195 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:33:23,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:33:23,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:33:23,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:33:23,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 03:33:23,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:33:23,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 03:33:23,199 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:33:23,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 03:33:23,200 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:33:23,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 03:33:23,201 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:33:23,201 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:33:23,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:33:23,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:33:23,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:33:23,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:33:23,203 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 03:33:23,203 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:33:23,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:33:23,204 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 03:33:23,204 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_6c7e56cc-2091-47b2-8e14-6cb025a316f5/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7e56cc-2091-47b2-8e14-6cb025a316f5/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0209a5ecd1f90a7dc207e0462366045d25daa538d59f8499c5199765a86166a3 [2021-10-29 03:33:23,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:33:23,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:33:23,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:33:23,811 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:33:23,813 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:33:23,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7e56cc-2091-47b2-8e14-6cb025a316f5/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i [2021-10-29 03:33:23,960 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7e56cc-2091-47b2-8e14-6cb025a316f5/bin/ukojak-Rh5K9KB4LI/data/3e18f6588/96820c2ee7274e02bb25781d526391fa/FLAGd5131db3c [2021-10-29 03:33:24,860 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:33:24,861 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7e56cc-2091-47b2-8e14-6cb025a316f5/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i [2021-10-29 03:33:24,880 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7e56cc-2091-47b2-8e14-6cb025a316f5/bin/ukojak-Rh5K9KB4LI/data/3e18f6588/96820c2ee7274e02bb25781d526391fa/FLAGd5131db3c [2021-10-29 03:33:25,086 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7e56cc-2091-47b2-8e14-6cb025a316f5/bin/ukojak-Rh5K9KB4LI/data/3e18f6588/96820c2ee7274e02bb25781d526391fa [2021-10-29 03:33:25,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:33:25,093 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:33:25,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:33:25,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:33:25,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:33:25,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:33:25" (1/1) ... [2021-10-29 03:33:25,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d6fc52a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:25, skipping insertion in model container [2021-10-29 03:33:25,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:33:25" (1/1) ... [2021-10-29 03:33:25,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:33:25,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:33:25,843 WARN L228 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_6c7e56cc-2091-47b2-8e14-6cb025a316f5/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i[22575,22588] [2021-10-29 03:33:25,855 WARN L228 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_6c7e56cc-2091-47b2-8e14-6cb025a316f5/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i[22647,22660] [2021-10-29 03:33:25,859 WARN L228 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_6c7e56cc-2091-47b2-8e14-6cb025a316f5/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i[22815,22828] [2021-10-29 03:33:25,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:33:25,877 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:33:25,920 WARN L228 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_6c7e56cc-2091-47b2-8e14-6cb025a316f5/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i[22575,22588] [2021-10-29 03:33:25,921 WARN L228 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_6c7e56cc-2091-47b2-8e14-6cb025a316f5/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i[22647,22660] [2021-10-29 03:33:25,923 WARN L228 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_6c7e56cc-2091-47b2-8e14-6cb025a316f5/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i[22815,22828] [2021-10-29 03:33:25,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:33:25,967 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:33:25,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:25 WrapperNode [2021-10-29 03:33:25,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:33:25,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:33:25,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:33:25,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:33:25,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:25" (1/1) ... [2021-10-29 03:33:25,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:25" (1/1) ... [2021-10-29 03:33:26,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:33:26,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:33:26,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:33:26,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:33:26,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:25" (1/1) ... [2021-10-29 03:33:26,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:25" (1/1) ... [2021-10-29 03:33:26,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:25" (1/1) ... [2021-10-29 03:33:26,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:25" (1/1) ... [2021-10-29 03:33:26,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:25" (1/1) ... [2021-10-29 03:33:26,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:25" (1/1) ... [2021-10-29 03:33:26,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:25" (1/1) ... [2021-10-29 03:33:26,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:33:26,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:33:26,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:33:26,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:33:26,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:25" (1/1) ... [2021-10-29 03:33:26,139 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:33:26,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7e56cc-2091-47b2-8e14-6cb025a316f5/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:33:26,178 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7e56cc-2091-47b2-8e14-6cb025a316f5/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:33:26,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7e56cc-2091-47b2-8e14-6cb025a316f5/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:33:26,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 03:33:26,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 03:33:26,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 03:33:26,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-29 03:33:26,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 03:33:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-29 03:33:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 03:33:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 03:33:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:33:26,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:33:27,528 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:33:27,528 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-10-29 03:33:27,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:33:27 BoogieIcfgContainer [2021-10-29 03:33:27,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:33:27,535 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:33:27,535 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:33:27,553 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:33:27,554 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:33:27" (1/1) ... [2021-10-29 03:33:27,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:33:27,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:33:27,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2021-10-29 03:33:27,645 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2021-10-29 03:33:27,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:33:27,650 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:33:27,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:33:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:33:27,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:33:27,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:33:27,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2021-10-29 03:33:27,941 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2021-10-29 03:33:27,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 03:33:27,943 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:33:27,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:33:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:33:28,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:33:28,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:33:28,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2021-10-29 03:33:28,239 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2021-10-29 03:33:28,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 03:33:28,241 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:33:28,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:33:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:33:28,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:33:29,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:33:29,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 27 states and 34 transitions. [2021-10-29 03:33:29,821 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2021-10-29 03:33:29,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 03:33:29,822 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:33:29,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:33:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:33:30,352 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:33:31,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:33:31,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 29 states and 39 transitions. [2021-10-29 03:33:31,592 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2021-10-29 03:33:31,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 03:33:31,595 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:33:31,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:33:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:33:32,157 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:33:34,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:33:34,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 20 states and 26 transitions. [2021-10-29 03:33:34,654 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2021-10-29 03:33:34,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 03:33:34,655 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:33:34,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:33:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:33:34,681 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:33:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:33:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:33:34,775 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:33:34,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:33:34,837 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2021-10-29 03:33:34,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:33:34 ImpRootNode [2021-10-29 03:33:34,885 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:33:34,886 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:33:34,887 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:33:34,887 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:33:34,888 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:33:27" (3/4) ... [2021-10-29 03:33:34,891 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 03:33:34,955 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7e56cc-2091-47b2-8e14-6cb025a316f5/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:33:34,956 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:33:34,959 INFO L168 Benchmark]: Toolchain (without parser) took 9863.60 ms. Allocated memory was 117.4 MB in the beginning and 148.9 MB in the end (delta: 31.5 MB). Free memory was 82.7 MB in the beginning and 103.3 MB in the end (delta: -20.6 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2021-10-29 03:33:34,960 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 81.8 MB. Free memory was 52.9 MB in the beginning and 52.9 MB in the end (delta: 25.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:33:34,961 INFO L168 Benchmark]: CACSL2BoogieTranslator took 871.80 ms. Allocated memory is still 117.4 MB. Free memory was 82.7 MB in the beginning and 87.5 MB in the end (delta: -4.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 03:33:34,963 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.74 ms. Allocated memory is still 117.4 MB. Free memory was 87.5 MB in the beginning and 85.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:33:34,964 INFO L168 Benchmark]: Boogie Preprocessor took 93.24 ms. Allocated memory is still 117.4 MB. Free memory was 85.5 MB in the beginning and 84.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:33:34,966 INFO L168 Benchmark]: RCFGBuilder took 1405.19 ms. Allocated memory is still 117.4 MB. Free memory was 84.0 MB in the beginning and 58.9 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-29 03:33:34,967 INFO L168 Benchmark]: CodeCheck took 7350.64 ms. Allocated memory was 117.4 MB in the beginning and 148.9 MB in the end (delta: 31.5 MB). Free memory was 58.9 MB in the beginning and 105.3 MB in the end (delta: -46.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:33:34,968 INFO L168 Benchmark]: Witness Printer took 69.80 ms. Allocated memory is still 148.9 MB. Free memory was 105.3 MB in the beginning and 103.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:33:34,975 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 22 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 7.2s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 216 SDtfs, 172 SDslu, 244 SDs, 0 SdLazy, 368 SolverSat, 140 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 355 GetRequests, 321 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 357 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 0/8 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1051]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1005] SLL* list = malloc(sizeof(SLL)); [L1006] list->next = ((void*)0) [L1007] list->prev = ((void*)0) [L1008] list->colour = BLACK [L1010] SLL* end = list; [L1013] COND FALSE !(__VERIFIER_nondet_int()) [L1036] end = ((void*)0) [L1037] end = list [L1040] COND FALSE !(!(((void*)0) != end)) [L1041] EXPR end->colour [L1041] COND FALSE !(!(BLACK == end->colour)) [L1043] COND TRUE ((void*)0) != end [L1045] EXPR end->colour [L1045] COND FALSE !(RED == end->colour) [L1051] EXPR end->next [L1051] COND TRUE !(end->next) [L1051] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 81.8 MB. Free memory was 52.9 MB in the beginning and 52.9 MB in the end (delta: 25.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 871.80 ms. Allocated memory is still 117.4 MB. Free memory was 82.7 MB in the beginning and 87.5 MB in the end (delta: -4.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.74 ms. Allocated memory is still 117.4 MB. Free memory was 87.5 MB in the beginning and 85.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 93.24 ms. Allocated memory is still 117.4 MB. Free memory was 85.5 MB in the beginning and 84.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1405.19 ms. Allocated memory is still 117.4 MB. Free memory was 84.0 MB in the beginning and 58.9 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * CodeCheck took 7350.64 ms. Allocated memory was 117.4 MB in the beginning and 148.9 MB in the end (delta: 31.5 MB). Free memory was 58.9 MB in the beginning and 105.3 MB in the end (delta: -46.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 69.80 ms. Allocated memory is still 148.9 MB. Free memory was 105.3 MB in the beginning and 103.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-29 03:33:35,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c7e56cc-2091-47b2-8e14-6cb025a316f5/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...