./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/heap-manipulation/tree-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_60aa2eca-906a-49e9-b88d-a01e6cb5b85e/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_60aa2eca-906a-49e9-b88d-a01e6cb5b85e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_60aa2eca-906a-49e9-b88d-a01e6cb5b85e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_60aa2eca-906a-49e9-b88d-a01e6cb5b85e/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/tree-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_60aa2eca-906a-49e9-b88d-a01e6cb5b85e/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_60aa2eca-906a-49e9-b88d-a01e6cb5b85e/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash daa6bd618e8acf5db639c256f6cad62f101e97d0 ..................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:16:36,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:16:36,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:16:36,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:16:36,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:16:36,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:16:36,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:16:36,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:16:36,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:16:36,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:16:36,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:16:36,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:16:36,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:16:36,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:16:36,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:16:36,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:16:36,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:16:36,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:16:36,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:16:36,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:16:36,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:16:36,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:16:36,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:16:36,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:16:36,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:16:36,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:16:36,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:16:36,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:16:36,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:16:36,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:16:36,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:16:36,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:16:36,618 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:16:36,619 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:16:36,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:16:36,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:16:36,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:16:36,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:16:36,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:16:36,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:16:36,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:16:36,625 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_60aa2eca-906a-49e9-b88d-a01e6cb5b85e/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-30 00:16:36,648 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:16:36,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:16:36,650 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:16:36,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:16:36,651 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:16:36,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:16:36,651 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:16:36,651 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:16:36,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:16:36,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:16:36,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:16:36,652 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-30 00:16:36,653 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-30 00:16:36,653 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-30 00:16:36,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:16:36,653 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 00:16:36,654 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:16:36,654 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:16:36,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:16:36,654 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:16:36,654 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:16:36,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:16:36,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:16:36,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:16:36,655 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:16:36,656 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:16:36,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:16:36,656 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:16:36,656 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-vcloud-master/worker/run_dir_60aa2eca-906a-49e9-b88d-a01e6cb5b85e/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_60aa2eca-906a-49e9-b88d-a01e6cb5b85e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> daa6bd618e8acf5db639c256f6cad62f101e97d0 [2020-11-30 00:16:36,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:16:36,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:16:36,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:16:36,937 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:16:36,938 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:16:36,940 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_60aa2eca-906a-49e9-b88d-a01e6cb5b85e/bin/uautomizer/../../sv-benchmarks/c/heap-manipulation/tree-1.i [2020-11-30 00:16:37,029 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_60aa2eca-906a-49e9-b88d-a01e6cb5b85e/bin/uautomizer/data/68b2afbde/577e8a0c4a2949489c9d57d745d3224c/FLAGa5251d2da [2020-11-30 00:16:37,554 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:16:37,554 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_60aa2eca-906a-49e9-b88d-a01e6cb5b85e/sv-benchmarks/c/heap-manipulation/tree-1.i [2020-11-30 00:16:37,568 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_60aa2eca-906a-49e9-b88d-a01e6cb5b85e/bin/uautomizer/data/68b2afbde/577e8a0c4a2949489c9d57d745d3224c/FLAGa5251d2da [2020-11-30 00:16:37,855 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_60aa2eca-906a-49e9-b88d-a01e6cb5b85e/bin/uautomizer/data/68b2afbde/577e8a0c4a2949489c9d57d745d3224c [2020-11-30 00:16:37,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:16:37,859 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-30 00:16:37,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:16:37,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:16:37,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:16:37,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:16:37" (1/1) ... [2020-11-30 00:16:37,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@195ceac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:16:37, skipping insertion in model container [2020-11-30 00:16:37,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:16:37" (1/1) ... [2020-11-30 00:16:37,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:16:37,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:16:38,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:16:38,257 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:16:38,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:16:38,357 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:16:38,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:16:38 WrapperNode [2020-11-30 00:16:38,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:16:38,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:16:38,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:16:38,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:16:38,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:16:38" (1/1) ... [2020-11-30 00:16:38,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:16:38" (1/1) ... [2020-11-30 00:16:38,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:16:38" (1/1) ... [2020-11-30 00:16:38,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:16:38" (1/1) ... [2020-11-30 00:16:38,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:16:38" (1/1) ... [2020-11-30 00:16:38,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:16:38" (1/1) ... [2020-11-30 00:16:38,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:16:38" (1/1) ... [2020-11-30 00:16:38,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:16:38,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:16:38,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:16:38,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:16:38,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:16:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60aa2eca-906a-49e9-b88d-a01e6cb5b85e/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:16:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-30 00:16:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:16:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-30 00:16:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-30 00:16:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-30 00:16:38,513 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-11-30 00:16:38,513 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2020-11-30 00:16:38,513 INFO L138 BoogieDeclarations]: Found implementation of procedure create_tree [2020-11-30 00:16:38,513 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tree [2020-11-30 00:16:38,513 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-30 00:16:38,513 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-30 00:16:38,513 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-30 00:16:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-30 00:16:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-30 00:16:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-30 00:16:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:16:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-30 00:16:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-30 00:16:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-30 00:16:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-30 00:16:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-30 00:16:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-30 00:16:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-30 00:16:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-30 00:16:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-30 00:16:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-30 00:16:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-30 00:16:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-30 00:16:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-30 00:16:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-30 00:16:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-30 00:16:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-30 00:16:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-30 00:16:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-30 00:16:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-30 00:16:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-30 00:16:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-30 00:16:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-30 00:16:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-30 00:16:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-30 00:16:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-30 00:16:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-30 00:16:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-30 00:16:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-30 00:16:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-30 00:16:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-30 00:16:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-30 00:16:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-30 00:16:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-30 00:16:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-30 00:16:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-30 00:16:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-30 00:16:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-30 00:16:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-30 00:16:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-30 00:16:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-30 00:16:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-30 00:16:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-30 00:16:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-30 00:16:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-30 00:16:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-30 00:16:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-30 00:16:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-30 00:16:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-30 00:16:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-30 00:16:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-30 00:16:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-30 00:16:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-30 00:16:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-30 00:16:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-30 00:16:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-30 00:16:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-30 00:16:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-30 00:16:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-30 00:16:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-30 00:16:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-30 00:16:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-30 00:16:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-30 00:16:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-30 00:16:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-30 00:16:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-30 00:16:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-30 00:16:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-30 00:16:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-30 00:16:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-30 00:16:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-30 00:16:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-30 00:16:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-30 00:16:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-30 00:16:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-30 00:16:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-30 00:16:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-30 00:16:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-30 00:16:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-30 00:16:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-30 00:16:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-30 00:16:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-30 00:16:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-30 00:16:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-30 00:16:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-30 00:16:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-30 00:16:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-30 00:16:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-30 00:16:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-30 00:16:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-30 00:16:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-30 00:16:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-30 00:16:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-30 00:16:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-30 00:16:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-30 00:16:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-30 00:16:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-30 00:16:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-30 00:16:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-30 00:16:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-30 00:16:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-30 00:16:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-30 00:16:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-30 00:16:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-11-30 00:16:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2020-11-30 00:16:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-30 00:16:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:16:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure create_tree [2020-11-30 00:16:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 00:16:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-30 00:16:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:16:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure free_tree [2020-11-30 00:16:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:16:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-30 00:16:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-30 00:16:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:16:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:16:39,448 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:16:39,449 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-11-30 00:16:39,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:16:39 BoogieIcfgContainer [2020-11-30 00:16:39,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:16:39,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:16:39,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:16:39,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:16:39,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:16:37" (1/3) ... [2020-11-30 00:16:39,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3048075f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:16:39, skipping insertion in model container [2020-11-30 00:16:39,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:16:38" (2/3) ... [2020-11-30 00:16:39,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3048075f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:16:39, skipping insertion in model container [2020-11-30 00:16:39,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:16:39" (3/3) ... [2020-11-30 00:16:39,472 INFO L111 eAbstractionObserver]: Analyzing ICFG tree-1.i [2020-11-30 00:16:39,489 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:16:39,494 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 65 error locations. [2020-11-30 00:16:39,508 INFO L253 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2020-11-30 00:16:39,540 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:16:39,541 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-30 00:16:39,541 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:16:39,541 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:16:39,541 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:16:39,541 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:16:39,542 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:16:39,542 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:16:39,574 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states. [2020-11-30 00:16:39,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 00:16:39,585 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:16:39,586 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:16:39,587 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, create_treeErr13REQUIRES_VIOLATION, create_treeErr14REQUIRES_VIOLATION, create_treeErr15REQUIRES_VIOLATION, create_treeErr10REQUIRES_VIOLATION, create_treeErr11REQUIRES_VIOLATION, create_treeErr12REQUIRES_VIOLATION, create_treeErr18REQUIRES_VIOLATION, create_treeErr19REQUIRES_VIOLATION, create_treeErr20REQUIRES_VIOLATION, create_treeErr16REQUIRES_VIOLATION, create_treeErr17REQUIRES_VIOLATION, create_treeErr1REQUIRES_VIOLATION, create_treeErr24REQUIRES_VIOLATION, create_treeErr0REQUIRES_VIOLATION, create_treeErr25REQUIRES_VIOLATION, create_treeErr4REQUIRES_VIOLATION, create_treeErr21REQUIRES_VIOLATION, create_treeErr3REQUIRES_VIOLATION, create_treeErr22REQUIRES_VIOLATION, create_treeErr2REQUIRES_VIOLATION, create_treeErr23REQUIRES_VIOLATION, create_treeErr7REQUIRES_VIOLATION, create_treeErr29REQUIRES_VIOLATION, create_treeErr6REQUIRES_VIOLATION, create_treeErr9REQUIRES_VIOLATION, create_treeErr5REQUIRES_VIOLATION, create_treeErr26REQUIRES_VIOLATION, create_treeErr27REQUIRES_VIOLATION, create_treeErr8REQUIRES_VIOLATION, create_treeErr28REQUIRES_VIOLATION, inspectErr9REQUIRES_VIOLATION, inspectErr4REQUIRES_VIOLATION, inspectErr2REQUIRES_VIOLATION, inspectErr8REQUIRES_VIOLATION, inspectErr3REQUIRES_VIOLATION, inspectErr6REQUIRES_VIOLATION, inspectErr1REQUIRES_VIOLATION, inspectErr7REQUIRES_VIOLATION, inspectErr5REQUIRES_VIOLATION, inspectErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, free_treeErr17ASSERT_VIOLATIONMEMORY_FREE, free_treeErr5REQUIRES_VIOLATION, free_treeErr10ASSERT_VIOLATIONMEMORY_FREE, free_treeErr7REQUIRES_VIOLATION, free_treeErr6REQUIRES_VIOLATION, free_treeErr8ASSERT_VIOLATIONMEMORY_FREE, free_treeErr19REQUIRES_VIOLATION, free_treeErr18REQUIRES_VIOLATION, free_treeErr9ASSERT_VIOLATIONMEMORY_FREE, free_treeErr11REQUIRES_VIOLATION, free_treeErr0REQUIRES_VIOLATION, free_treeErr21ASSERT_VIOLATIONMEMORY_FREE, free_treeErr20ASSERT_VIOLATIONMEMORY_FREE, free_treeErr12REQUIRES_VIOLATION, free_treeErr1REQUIRES_VIOLATION, free_treeErr22ASSERT_VIOLATIONMEMORY_FREE, free_treeErr3REQUIRES_VIOLATION, free_treeErr13REQUIRES_VIOLATION, free_treeErr2REQUIRES_VIOLATION, free_treeErr15ASSERT_VIOLATIONMEMORY_FREE, free_treeErr4REQUIRES_VIOLATION, free_treeErr16ASSERT_VIOLATIONMEMORY_FREE, free_treeErr14REQUIRES_VIOLATION]=== [2020-11-30 00:16:39,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:16:39,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1314657269, now seen corresponding path program 1 times [2020-11-30 00:16:39,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:16:39,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157383323] [2020-11-30 00:16:39,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:16:39,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:16:39,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:16:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:16:39,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:16:39,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157383323] [2020-11-30 00:16:39,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:16:39,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:16:39,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579606377] [2020-11-30 00:16:39,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:16:39,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:16:39,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:16:39,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:16:39,892 INFO L87 Difference]: Start difference. First operand 168 states. Second operand 3 states. [2020-11-30 00:16:40,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:16:40,413 INFO L93 Difference]: Finished difference Result 216 states and 236 transitions. [2020-11-30 00:16:40,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:16:40,415 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-30 00:16:40,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:16:40,427 INFO L225 Difference]: With dead ends: 216 [2020-11-30 00:16:40,428 INFO L226 Difference]: Without dead ends: 211 [2020-11-30 00:16:40,429 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:16:40,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-11-30 00:16:40,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 169. [2020-11-30 00:16:40,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-11-30 00:16:40,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 185 transitions. [2020-11-30 00:16:40,519 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 185 transitions. Word has length 9 [2020-11-30 00:16:40,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:16:40,520 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 185 transitions. [2020-11-30 00:16:40,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:16:40,520 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 185 transitions. [2020-11-30 00:16:40,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:16:40,521 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:16:40,521 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:16:40,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:16:40,522 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, create_treeErr13REQUIRES_VIOLATION, create_treeErr14REQUIRES_VIOLATION, create_treeErr15REQUIRES_VIOLATION, create_treeErr10REQUIRES_VIOLATION, create_treeErr11REQUIRES_VIOLATION, create_treeErr12REQUIRES_VIOLATION, create_treeErr18REQUIRES_VIOLATION, create_treeErr19REQUIRES_VIOLATION, create_treeErr20REQUIRES_VIOLATION, create_treeErr16REQUIRES_VIOLATION, create_treeErr17REQUIRES_VIOLATION, create_treeErr1REQUIRES_VIOLATION, create_treeErr24REQUIRES_VIOLATION, create_treeErr0REQUIRES_VIOLATION, create_treeErr25REQUIRES_VIOLATION, create_treeErr4REQUIRES_VIOLATION, create_treeErr21REQUIRES_VIOLATION, create_treeErr3REQUIRES_VIOLATION, create_treeErr22REQUIRES_VIOLATION, create_treeErr2REQUIRES_VIOLATION, create_treeErr23REQUIRES_VIOLATION, create_treeErr7REQUIRES_VIOLATION, create_treeErr29REQUIRES_VIOLATION, create_treeErr6REQUIRES_VIOLATION, create_treeErr9REQUIRES_VIOLATION, create_treeErr5REQUIRES_VIOLATION, create_treeErr26REQUIRES_VIOLATION, create_treeErr27REQUIRES_VIOLATION, create_treeErr8REQUIRES_VIOLATION, create_treeErr28REQUIRES_VIOLATION, inspectErr9REQUIRES_VIOLATION, inspectErr4REQUIRES_VIOLATION, inspectErr2REQUIRES_VIOLATION, inspectErr8REQUIRES_VIOLATION, inspectErr3REQUIRES_VIOLATION, inspectErr6REQUIRES_VIOLATION, inspectErr1REQUIRES_VIOLATION, inspectErr7REQUIRES_VIOLATION, inspectErr5REQUIRES_VIOLATION, inspectErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, free_treeErr17ASSERT_VIOLATIONMEMORY_FREE, free_treeErr5REQUIRES_VIOLATION, free_treeErr10ASSERT_VIOLATIONMEMORY_FREE, free_treeErr7REQUIRES_VIOLATION, free_treeErr6REQUIRES_VIOLATION, free_treeErr8ASSERT_VIOLATIONMEMORY_FREE, free_treeErr19REQUIRES_VIOLATION, free_treeErr18REQUIRES_VIOLATION, free_treeErr9ASSERT_VIOLATIONMEMORY_FREE, free_treeErr11REQUIRES_VIOLATION, free_treeErr0REQUIRES_VIOLATION, free_treeErr21ASSERT_VIOLATIONMEMORY_FREE, free_treeErr20ASSERT_VIOLATIONMEMORY_FREE, free_treeErr12REQUIRES_VIOLATION, free_treeErr1REQUIRES_VIOLATION, free_treeErr22ASSERT_VIOLATIONMEMORY_FREE, free_treeErr3REQUIRES_VIOLATION, free_treeErr13REQUIRES_VIOLATION, free_treeErr2REQUIRES_VIOLATION, free_treeErr15ASSERT_VIOLATIONMEMORY_FREE, free_treeErr4REQUIRES_VIOLATION, free_treeErr16ASSERT_VIOLATIONMEMORY_FREE, free_treeErr14REQUIRES_VIOLATION]=== [2020-11-30 00:16:40,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:16:40,523 INFO L82 PathProgramCache]: Analyzing trace with hash -2099708289, now seen corresponding path program 1 times [2020-11-30 00:16:40,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:16:40,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238108153] [2020-11-30 00:16:40,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:16:40,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:16:40,576 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:16:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:16:40,592 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:16:40,616 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:16:40,616 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:16:40,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:16:40,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:16:40 BoogieIcfgContainer [2020-11-30 00:16:40,637 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:16:40,638 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:16:40,640 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:16:40,640 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:16:40,640 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:16:39" (3/4) ... [2020-11-30 00:16:40,642 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 00:16:40,687 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_60aa2eca-906a-49e9-b88d-a01e6cb5b85e/bin/uautomizer/witness.graphml [2020-11-30 00:16:40,687 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:16:40,690 INFO L168 Benchmark]: Toolchain (without parser) took 2829.83 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 50.7 MB in the beginning and 41.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:16:40,695 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 83.9 MB. Free memory was 61.1 MB in the beginning and 61.1 MB in the end (delta: 26.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:16:40,696 INFO L168 Benchmark]: CACSL2BoogieTranslator took 498.29 ms. Allocated memory is still 83.9 MB. Free memory was 50.6 MB in the beginning and 49.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:16:40,696 INFO L168 Benchmark]: Boogie Preprocessor took 69.24 ms. Allocated memory is still 83.9 MB. Free memory was 49.5 MB in the beginning and 46.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:16:40,698 INFO L168 Benchmark]: RCFGBuilder took 1023.27 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 46.5 MB in the beginning and 74.5 MB in the end (delta: -28.0 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:16:40,698 INFO L168 Benchmark]: TraceAbstraction took 1182.26 ms. Allocated memory is still 107.0 MB. Free memory was 74.5 MB in the beginning and 42.7 MB in the end (delta: 31.8 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:16:40,701 INFO L168 Benchmark]: Witness Printer took 49.27 ms. Allocated memory is still 107.0 MB. Free memory was 42.7 MB in the beginning and 41.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:16:40,706 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 83.9 MB. Free memory was 61.1 MB in the beginning and 61.1 MB in the end (delta: 26.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 498.29 ms. Allocated memory is still 83.9 MB. Free memory was 50.6 MB in the beginning and 49.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.24 ms. Allocated memory is still 83.9 MB. Free memory was 49.5 MB in the beginning and 46.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1023.27 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 46.5 MB in the beginning and 74.5 MB in the end (delta: -28.0 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1182.26 ms. Allocated memory is still 107.0 MB. Free memory was 74.5 MB in the beginning and 42.7 MB in the end (delta: 31.8 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. * Witness Printer took 49.27 ms. Allocated memory is still 107.0 MB. Free memory was 42.7 MB in the beginning and 41.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 601]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L633] CALL create_tree() [L585] struct node *nodelast = ((void *)0); [L586] struct node *node = ((void *)0); VAL [node={0:0}, nodelast={0:0}] [L587] COND FALSE !(__VERIFIER_nondet_int()) [L601] node->parent = ((void *)0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 174 locations, 65 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 126 SDtfs, 95 SDslu, 4 SDs, 0 SdLazy, 169 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=169occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 42 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...