./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/reverse_array_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/array-memsafety/reverse_array_unsafe.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 94dea6eddb2a1fd381e32f00f2713f560a4fbdc4 ................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-5485861 [2020-10-26 03:27:38,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 03:27:38,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 03:27:38,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 03:27:38,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 03:27:38,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 03:27:38,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 03:27:38,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 03:27:38,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 03:27:38,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 03:27:38,782 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 03:27:38,784 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 03:27:38,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 03:27:38,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 03:27:38,788 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 03:27:38,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 03:27:38,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 03:27:38,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 03:27:38,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 03:27:38,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 03:27:38,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 03:27:38,807 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 03:27:38,809 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 03:27:38,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 03:27:38,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 03:27:38,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 03:27:38,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 03:27:38,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 03:27:38,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 03:27:38,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 03:27:38,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 03:27:38,832 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 03:27:38,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 03:27:38,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 03:27:38,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 03:27:38,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 03:27:38,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 03:27:38,840 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 03:27:38,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 03:27:38,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 03:27:38,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 03:27:38,851 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-26 03:27:38,909 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 03:27:38,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 03:27:38,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 03:27:38,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 03:27:38,916 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 03:27:38,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 03:27:38,917 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 03:27:38,917 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 03:27:38,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 03:27:38,918 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 03:27:38,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 03:27:38,920 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-26 03:27:38,921 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-26 03:27:38,921 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-26 03:27:38,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 03:27:38,922 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-26 03:27:38,922 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 03:27:38,923 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 03:27:38,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 03:27:38,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 03:27:38,924 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 03:27:38,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 03:27:38,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 03:27:38,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 03:27:38,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 03:27:38,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 03:27:38,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 03:27:38,927 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 03:27:38,927 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94dea6eddb2a1fd381e32f00f2713f560a4fbdc4 [2020-10-26 03:27:39,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 03:27:39,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 03:27:39,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 03:27:39,417 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 03:27:39,418 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 03:27:39,420 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/reverse_array_unsafe.i [2020-10-26 03:27:39,524 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a981a6b4b/a7b5811102504e6fb64ae7bb76acc381/FLAG658b89506 [2020-10-26 03:27:40,371 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 03:27:40,372 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/reverse_array_unsafe.i [2020-10-26 03:27:40,388 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a981a6b4b/a7b5811102504e6fb64ae7bb76acc381/FLAG658b89506 [2020-10-26 03:27:40,604 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a981a6b4b/a7b5811102504e6fb64ae7bb76acc381 [2020-10-26 03:27:40,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 03:27:40,614 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-26 03:27:40,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 03:27:40,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 03:27:40,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 03:27:40,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:27:40" (1/1) ... [2020-10-26 03:27:40,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2487300f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:27:40, skipping insertion in model container [2020-10-26 03:27:40,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:27:40" (1/1) ... [2020-10-26 03:27:40,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 03:27:40,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 03:27:41,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:27:41,192 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 03:27:41,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:27:41,350 INFO L208 MainTranslator]: Completed translation [2020-10-26 03:27:41,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:27:41 WrapperNode [2020-10-26 03:27:41,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 03:27:41,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 03:27:41,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 03:27:41,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 03:27:41,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:27:41" (1/1) ... [2020-10-26 03:27:41,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:27:41" (1/1) ... [2020-10-26 03:27:41,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:27:41" (1/1) ... [2020-10-26 03:27:41,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:27:41" (1/1) ... [2020-10-26 03:27:41,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:27:41" (1/1) ... [2020-10-26 03:27:41,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:27:41" (1/1) ... [2020-10-26 03:27:41,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:27:41" (1/1) ... [2020-10-26 03:27:41,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 03:27:41,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 03:27:41,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 03:27:41,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 03:27:41,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:27:41" (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 [2020-10-26 03:27:41,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 03:27:41,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 03:27:41,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-26 03:27:41,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-26 03:27:41,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-26 03:27:41,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-26 03:27:41,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-26 03:27:41,497 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 03:27:41,497 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-26 03:27:41,498 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-26 03:27:41,499 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-26 03:27:41,500 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-26 03:27:41,501 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-26 03:27:41,501 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-26 03:27:41,511 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-26 03:27:41,511 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-26 03:27:41,514 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-26 03:27:41,514 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-26 03:27:41,514 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-26 03:27:41,515 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-26 03:27:41,515 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-26 03:27:41,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-26 03:27:41,516 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-26 03:27:41,516 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-26 03:27:41,516 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-26 03:27:41,516 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-26 03:27:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-26 03:27:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-26 03:27:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-26 03:27:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-26 03:27:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-26 03:27:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-26 03:27:41,523 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-26 03:27:41,523 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-26 03:27:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-26 03:27:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-26 03:27:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-26 03:27:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-26 03:27:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-26 03:27:41,525 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-26 03:27:41,525 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-26 03:27:41,525 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-26 03:27:41,525 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-26 03:27:41,525 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-26 03:27:41,525 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-26 03:27:41,525 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-26 03:27:41,526 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-26 03:27:41,526 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-26 03:27:41,526 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-26 03:27:41,526 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-26 03:27:41,526 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-26 03:27:41,526 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-26 03:27:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-26 03:27:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-26 03:27:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-26 03:27:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-26 03:27:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-26 03:27:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-26 03:27:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-26 03:27:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-26 03:27:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-26 03:27:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-26 03:27:41,529 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-26 03:27:41,529 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-26 03:27:41,529 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-26 03:27:41,529 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-26 03:27:41,529 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-26 03:27:41,529 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-26 03:27:41,529 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-26 03:27:41,530 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-26 03:27:41,530 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-26 03:27:41,530 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 03:27:41,530 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-26 03:27:41,531 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-26 03:27:41,531 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-26 03:27:41,531 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 03:27:41,531 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-26 03:27:41,532 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-26 03:27:41,532 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-26 03:27:41,532 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-26 03:27:41,532 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-26 03:27:41,532 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-26 03:27:41,532 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-26 03:27:41,533 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-26 03:27:41,533 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-26 03:27:41,533 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-26 03:27:41,533 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-26 03:27:41,533 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-26 03:27:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-26 03:27:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-26 03:27:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-26 03:27:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-26 03:27:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-26 03:27:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-26 03:27:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-26 03:27:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-26 03:27:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-26 03:27:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-26 03:27:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-26 03:27:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-26 03:27:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-26 03:27:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-26 03:27:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-26 03:27:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-26 03:27:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-26 03:27:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-26 03:27:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-26 03:27:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-26 03:27:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-26 03:27:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-26 03:27:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-26 03:27:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-26 03:27:41,537 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-26 03:27:41,537 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-26 03:27:41,537 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-26 03:27:41,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 03:27:41,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-26 03:27:41,537 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 03:27:41,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 03:27:41,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 03:27:41,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 03:27:41,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 03:27:41,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 03:27:41,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 03:27:42,121 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 03:27:42,121 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-26 03:27:42,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:27:42 BoogieIcfgContainer [2020-10-26 03:27:42,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 03:27:42,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 03:27:42,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 03:27:42,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 03:27:42,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 03:27:40" (1/3) ... [2020-10-26 03:27:42,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad9464d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:27:42, skipping insertion in model container [2020-10-26 03:27:42,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:27:41" (2/3) ... [2020-10-26 03:27:42,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad9464d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:27:42, skipping insertion in model container [2020-10-26 03:27:42,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:27:42" (3/3) ... [2020-10-26 03:27:42,135 INFO L111 eAbstractionObserver]: Analyzing ICFG reverse_array_unsafe.i [2020-10-26 03:27:42,148 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 03:27:42,155 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 23 error locations. [2020-10-26 03:27:42,170 INFO L253 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2020-10-26 03:27:42,200 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 03:27:42,200 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-26 03:27:42,200 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 03:27:42,201 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 03:27:42,201 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 03:27:42,201 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 03:27:42,201 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 03:27:42,201 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 03:27:42,220 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2020-10-26 03:27:42,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-26 03:27:42,230 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:27:42,231 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:27:42,231 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr22ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2020-10-26 03:27:42,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:27:42,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1096953401, now seen corresponding path program 1 times [2020-10-26 03:27:42,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:27:42,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107261782] [2020-10-26 03:27:42,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:27:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:27:42,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:27:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:27:42,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:27:42,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107261782] [2020-10-26 03:27:42,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:27:42,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 03:27:42,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075151190] [2020-10-26 03:27:42,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:27:42,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:27:42,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:27:42,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:27:42,571 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 4 states. [2020-10-26 03:27:42,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:27:42,816 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2020-10-26 03:27:42,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 03:27:42,819 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-26 03:27:42,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:27:42,829 INFO L225 Difference]: With dead ends: 66 [2020-10-26 03:27:42,830 INFO L226 Difference]: Without dead ends: 63 [2020-10-26 03:27:42,832 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 03:27:42,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-26 03:27:42,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-10-26 03:27:42,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-26 03:27:42,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2020-10-26 03:27:42,877 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 11 [2020-10-26 03:27:42,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:27:42,878 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2020-10-26 03:27:42,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:27:42,879 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2020-10-26 03:27:42,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-26 03:27:42,879 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:27:42,880 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:27:42,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 03:27:42,881 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr22ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2020-10-26 03:27:42,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:27:42,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1096893819, now seen corresponding path program 1 times [2020-10-26 03:27:42,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:27:42,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267426611] [2020-10-26 03:27:42,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:27:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 03:27:42,907 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 03:27:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 03:27:42,926 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 03:27:42,958 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 03:27:42,959 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 03:27:42,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 03:27:42,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 03:27:42 BoogieIcfgContainer [2020-10-26 03:27:42,985 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 03:27:42,986 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 03:27:42,986 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 03:27:42,986 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 03:27:42,987 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:27:42" (3/4) ... [2020-10-26 03:27:42,989 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-26 03:27:43,030 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 03:27:43,031 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 03:27:43,033 INFO L168 Benchmark]: Toolchain (without parser) took 2423.09 ms. Allocated memory was 46.1 MB in the beginning and 69.2 MB in the end (delta: 23.1 MB). Free memory was 27.7 MB in the beginning and 38.3 MB in the end (delta: -10.6 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2020-10-26 03:27:43,034 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 35.7 MB. Free memory was 18.5 MB in the beginning and 18.5 MB in the end (delta: 19.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 03:27:43,035 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.39 ms. Allocated memory is still 46.1 MB. Free memory was 27.0 MB in the beginning and 23.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2020-10-26 03:27:43,036 INFO L168 Benchmark]: Boogie Preprocessor took 63.33 ms. Allocated memory is still 46.1 MB. Free memory was 23.1 MB in the beginning and 20.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 03:27:43,037 INFO L168 Benchmark]: RCFGBuilder took 707.62 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 20.7 MB in the beginning and 26.9 MB in the end (delta: -6.2 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2020-10-26 03:27:43,038 INFO L168 Benchmark]: TraceAbstraction took 858.93 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 26.4 MB in the beginning and 39.7 MB in the end (delta: -13.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 03:27:43,039 INFO L168 Benchmark]: Witness Printer took 45.34 ms. Allocated memory is still 69.2 MB. Free memory was 39.7 MB in the beginning and 38.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 03:27:43,043 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 35.7 MB. Free memory was 18.5 MB in the beginning and 18.5 MB in the end (delta: 19.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 736.39 ms. Allocated memory is still 46.1 MB. Free memory was 27.0 MB in the beginning and 23.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.33 ms. Allocated memory is still 46.1 MB. Free memory was 23.1 MB in the beginning and 20.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 707.62 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 20.7 MB in the beginning and 26.9 MB in the end (delta: -6.2 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 858.93 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 26.4 MB in the beginning and 39.7 MB in the end (delta: -13.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 45.34 ms. Allocated memory is still 69.2 MB. Free memory was 39.7 MB in the beginning and 38.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 522]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L515] int i, j, tmp; [L516] int length = __VERIFIER_nondet_int(); [L517] COND TRUE length < 1 [L517] length = 1 VAL [length=1] [L518] COND FALSE !(length % 2 == 0) VAL [length=1] [L519] int *arr = __builtin_alloca (length); [L520] int i = 0; VAL [__builtin_alloca (length)={2:0}, arr={2:0}, i=0, length=1] [L520] COND TRUE i < length [L522] arr[i] = __VERIFIER_nondet_int() - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 80 locations, 23 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 65 SDslu, 9 SDs, 0 SdLazy, 73 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 260 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...