./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 f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/heap-manipulation/tree-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 044ef52817dc7382960a6f0241b98ee90ba1b40d ..................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-11-28 20:13:58,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:13:58,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:13:58,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:13:58,216 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:13:58,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:13:58,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:13:58,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:13:58,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:13:58,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:13:58,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:13:58,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:13:58,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:13:58,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:13:58,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:13:58,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:13:58,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:13:58,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:13:58,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:13:58,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:13:58,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:13:58,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:13:58,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:13:58,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:13:58,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:13:58,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:13:58,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:13:58,253 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:13:58,254 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:13:58,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:13:58,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:13:58,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:13:58,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:13:58,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:13:58,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:13:58,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:13:58,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:13:58,267 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:13:58,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:13:58,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:13:58,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:13:58,274 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 20:13:58,298 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:13:58,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:13:58,300 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:13:58,301 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:13:58,301 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:13:58,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:13:58,302 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:13:58,302 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:13:58,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:13:58,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:13:58,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:13:58,304 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 20:13:58,305 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 20:13:58,305 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 20:13:58,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:13:58,306 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 20:13:58,306 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:13:58,306 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:13:58,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:13:58,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:13:58,308 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:13:58,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:13:58,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:13:58,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:13:58,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:13:58,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:13:58,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:13:58,310 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:13:58,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 044ef52817dc7382960a6f0241b98ee90ba1b40d [2019-11-28 20:13:58,643 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:13:58,657 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:13:58,660 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:13:58,662 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:13:58,662 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:13:58,663 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-manipulation/tree-1.i [2019-11-28 20:13:58,744 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ca344aac/370c21a6f8ac4fd78b303b5c5e7511e7/FLAG4f46ce834 [2019-11-28 20:13:59,285 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:13:59,286 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/tree-1.i [2019-11-28 20:13:59,305 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ca344aac/370c21a6f8ac4fd78b303b5c5e7511e7/FLAG4f46ce834 [2019-11-28 20:13:59,605 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ca344aac/370c21a6f8ac4fd78b303b5c5e7511e7 [2019-11-28 20:13:59,608 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:13:59,609 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 20:13:59,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:13:59,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:13:59,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:13:59,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:13:59" (1/1) ... [2019-11-28 20:13:59,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63cff6e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:13:59, skipping insertion in model container [2019-11-28 20:13:59,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:13:59" (1/1) ... [2019-11-28 20:13:59,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:13:59,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:14:00,105 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:14:00,119 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:14:00,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:14:00,238 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:14:00,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:14:00 WrapperNode [2019-11-28 20:14:00,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:14:00,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:14:00,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:14:00,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:14:00,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:14:00" (1/1) ... [2019-11-28 20:14:00,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:14:00" (1/1) ... [2019-11-28 20:14:00,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:14:00" (1/1) ... [2019-11-28 20:14:00,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:14:00" (1/1) ... [2019-11-28 20:14:00,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:14:00" (1/1) ... [2019-11-28 20:14:00,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:14:00" (1/1) ... [2019-11-28 20:14:00,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:14:00" (1/1) ... [2019-11-28 20:14:00,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:14:00,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:14:00,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:14:00,333 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:14:00,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:14:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:14:00,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 20:14:00,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:14:00,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 20:14:00,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 20:14:00,393 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2019-11-28 20:14:00,394 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2019-11-28 20:14:00,394 INFO L138 BoogieDeclarations]: Found implementation of procedure create_tree [2019-11-28 20:14:00,394 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tree [2019-11-28 20:14:00,395 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 20:14:00,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-28 20:14:00,396 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 20:14:00,396 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 20:14:00,396 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 20:14:00,397 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 20:14:00,397 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 20:14:00,397 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 20:14:00,400 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 20:14:00,400 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 20:14:00,400 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 20:14:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 20:14:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 20:14:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 20:14:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 20:14:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 20:14:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 20:14:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 20:14:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 20:14:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 20:14:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 20:14:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 20:14:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 20:14:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 20:14:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 20:14:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 20:14:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 20:14:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 20:14:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 20:14:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 20:14:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 20:14:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 20:14:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 20:14:00,406 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 20:14:00,406 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 20:14:00,406 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 20:14:00,406 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 20:14:00,406 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 20:14:00,407 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 20:14:00,407 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 20:14:00,407 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 20:14:00,407 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 20:14:00,407 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 20:14:00,408 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 20:14:00,408 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 20:14:00,408 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 20:14:00,409 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 20:14:00,409 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 20:14:00,410 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 20:14:00,410 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 20:14:00,410 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 20:14:00,411 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 20:14:00,411 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 20:14:00,411 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 20:14:00,411 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 20:14:00,412 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 20:14:00,412 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 20:14:00,412 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 20:14:00,412 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-28 20:14:00,412 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 20:14:00,414 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 20:14:00,414 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 20:14:00,414 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 20:14:00,414 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 20:14:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 20:14:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 20:14:00,416 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 20:14:00,417 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 20:14:00,417 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 20:14:00,418 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 20:14:00,418 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 20:14:00,418 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 20:14:00,418 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 20:14:00,419 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 20:14:00,420 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 20:14:00,420 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 20:14:00,420 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 20:14:00,420 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 20:14:00,420 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 20:14:00,421 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 20:14:00,421 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 20:14:00,421 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 20:14:00,421 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 20:14:00,422 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 20:14:00,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 20:14:00,422 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 20:14:00,422 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 20:14:00,422 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 20:14:00,423 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 20:14:00,423 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 20:14:00,423 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 20:14:00,423 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 20:14:00,424 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 20:14:00,424 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 20:14:00,424 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 20:14:00,424 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 20:14:00,425 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 20:14:00,425 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 20:14:00,425 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 20:14:00,425 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 20:14:00,425 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 20:14:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 20:14:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 20:14:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 20:14:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 20:14:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2019-11-28 20:14:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2019-11-28 20:14:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 20:14:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:14:00,428 INFO L130 BoogieDeclarations]: Found specification of procedure create_tree [2019-11-28 20:14:00,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 20:14:00,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 20:14:00,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:14:00,429 INFO L130 BoogieDeclarations]: Found specification of procedure free_tree [2019-11-28 20:14:00,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:14:00,430 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 20:14:00,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 20:14:00,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:14:01,235 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:14:01,235 INFO L287 CfgBuilder]: Removed 11 assume(true) statements. [2019-11-28 20:14:01,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:14:01 BoogieIcfgContainer [2019-11-28 20:14:01,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:14:01,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:14:01,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:14:01,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:14:01,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:13:59" (1/3) ... [2019-11-28 20:14:01,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e89c87b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:14:01, skipping insertion in model container [2019-11-28 20:14:01,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:14:00" (2/3) ... [2019-11-28 20:14:01,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e89c87b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:14:01, skipping insertion in model container [2019-11-28 20:14:01,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:14:01" (3/3) ... [2019-11-28 20:14:01,248 INFO L109 eAbstractionObserver]: Analyzing ICFG tree-1.i [2019-11-28 20:14:01,259 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:14:01,267 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 64 error locations. [2019-11-28 20:14:01,281 INFO L249 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2019-11-28 20:14:01,301 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:14:01,301 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 20:14:01,302 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:14:01,302 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:14:01,302 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:14:01,303 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:14:01,303 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:14:01,303 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:14:01,325 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2019-11-28 20:14:01,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 20:14:01,335 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:14:01,336 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:14:01,336 INFO L410 AbstractCegarLoop]: === Iteration 1 === [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]=== [2019-11-28 20:14:01,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:14:01,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1988376063, now seen corresponding path program 1 times [2019-11-28 20:14:01,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:14:01,351 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076435455] [2019-11-28 20:14:01,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:14:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:14:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:14:01,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:14:01,575 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076435455] [2019-11-28 20:14:01,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:14:01,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:14:01,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208395632] [2019-11-28 20:14:01,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:14:01,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:14:01,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:14:01,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:14:01,605 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 3 states. [2019-11-28 20:14:02,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:14:02,086 INFO L93 Difference]: Finished difference Result 212 states and 232 transitions. [2019-11-28 20:14:02,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:14:02,088 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-28 20:14:02,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:14:02,114 INFO L225 Difference]: With dead ends: 212 [2019-11-28 20:14:02,114 INFO L226 Difference]: Without dead ends: 204 [2019-11-28 20:14:02,116 INFO L630 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 [2019-11-28 20:14:02,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2019-11-28 20:14:02,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 162. [2019-11-28 20:14:02,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-11-28 20:14:02,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 176 transitions. [2019-11-28 20:14:02,172 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 176 transitions. Word has length 9 [2019-11-28 20:14:02,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:14:02,173 INFO L462 AbstractCegarLoop]: Abstraction has 162 states and 176 transitions. [2019-11-28 20:14:02,174 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:14:02,174 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 176 transitions. [2019-11-28 20:14:02,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 20:14:02,175 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:14:02,175 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:14:02,176 INFO L410 AbstractCegarLoop]: === Iteration 2 === [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]=== [2019-11-28 20:14:02,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:14:02,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1510154433, now seen corresponding path program 1 times [2019-11-28 20:14:02,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:14:02,177 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711383614] [2019-11-28 20:14:02,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:14:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:14:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:14:02,235 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:14:02,236 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 20:14:02,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:14:02 BoogieIcfgContainer [2019-11-28 20:14:02,260 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:14:02,261 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:14:02,261 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:14:02,261 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:14:02,262 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:14:01" (3/4) ... [2019-11-28 20:14:02,265 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 20:14:02,310 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:14:02,311 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:14:02,314 INFO L168 Benchmark]: Toolchain (without parser) took 2703.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.3 MB). Free memory was 955.0 MB in the beginning and 922.3 MB in the end (delta: 32.7 MB). Peak memory consumption was 114.0 MB. Max. memory is 11.5 GB. [2019-11-28 20:14:02,315 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:14:02,316 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.3 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -108.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:14:02,317 INFO L168 Benchmark]: Boogie Preprocessor took 92.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:14:02,318 INFO L168 Benchmark]: RCFGBuilder took 904.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 986.5 MB in the end (delta: 67.8 MB). Peak memory consumption was 67.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:14:02,319 INFO L168 Benchmark]: TraceAbstraction took 1021.48 ms. Allocated memory is still 1.1 GB. Free memory was 986.5 MB in the beginning and 922.3 MB in the end (delta: 64.2 MB). Peak memory consumption was 64.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:14:02,319 INFO L168 Benchmark]: Witness Printer took 49.89 ms. Allocated memory is still 1.1 GB. Free memory is still 922.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:14:02,323 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 629.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.3 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -108.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 92.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 904.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 986.5 MB in the end (delta: 67.8 MB). Peak memory consumption was 67.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1021.48 ms. Allocated memory is still 1.1 GB. Free memory was 986.5 MB in the beginning and 922.3 MB in the end (delta: 64.2 MB). Peak memory consumption was 64.2 MB. Max. memory is 11.5 GB. * Witness Printer took 49.89 ms. Allocated memory is still 1.1 GB. Free memory is still 922.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 590]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L622] CALL create_tree() [L574] struct node *nodelast = ((void *)0); [L575] struct node *node = ((void *)0); VAL [node={0:0}, nodelast={0:0}] [L576] COND FALSE !(__VERIFIER_nondet_int()) [L590] node->parent = ((void *)0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 168 locations, 64 error locations. Result: UNSAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 136 SDtfs, 93 SDslu, 4 SDs, 0 SdLazy, 155 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=162occurred in iteration=0, 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, 136 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...