./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/array-memsafety/openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 91b1670e Calling Ultimate with: 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 /storage/repos/svcomp/c/array-memsafety/openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.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 12318f34040209c37cd54fcab38029595d0807d6 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 22:44:12,462 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 22:44:12,465 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 22:44:12,481 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 22:44:12,483 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 22:44:12,484 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 22:44:12,486 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 22:44:12,488 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 22:44:12,491 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 22:44:12,493 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 22:44:12,495 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 22:44:12,496 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 22:44:12,497 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 22:44:12,500 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 22:44:12,502 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 22:44:12,509 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 22:44:12,510 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 22:44:12,514 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 22:44:12,519 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 22:44:12,520 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 22:44:12,521 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 22:44:12,522 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 22:44:12,524 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 22:44:12,525 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 22:44:12,525 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 22:44:12,526 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 22:44:12,527 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 22:44:12,528 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 22:44:12,529 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 22:44:12,530 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 22:44:12,530 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 22:44:12,531 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 22:44:12,531 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 22:44:12,531 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 22:44:12,533 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 22:44:12,533 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 22:44:12,534 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 22:44:12,548 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 22:44:12,548 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 22:44:12,549 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 22:44:12,549 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 22:44:12,550 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 22:44:12,551 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 22:44:12,551 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 22:44:12,551 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 22:44:12,551 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 22:44:12,551 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 22:44:12,551 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 22:44:12,552 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 22:44:12,552 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 22:44:12,553 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 22:44:12,553 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 22:44:12,553 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 22:44:12,553 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 22:44:12,553 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 22:44:12,553 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 22:44:12,554 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 22:44:12,555 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 22:44:12,555 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 22:44:12,555 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 22:44:12,555 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 22:44:12,555 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 22:44:12,555 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 22:44:12,556 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 22:44:12,557 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 22:44:12,557 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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 -> 12318f34040209c37cd54fcab38029595d0807d6 [2018-11-28 22:44:12,596 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 22:44:12,612 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 22:44:12,620 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 22:44:12,622 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 22:44:12,622 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 22:44:12,623 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-memsafety/openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-11-28 22:44:12,691 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b9ee7769/fb934b1f2f024dccaae6d8af5f22c7e6/FLAGa0a4e2409 [2018-11-28 22:44:13,224 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 22:44:13,224 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/array-memsafety/openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-11-28 22:44:13,237 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b9ee7769/fb934b1f2f024dccaae6d8af5f22c7e6/FLAGa0a4e2409 [2018-11-28 22:44:13,524 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b9ee7769/fb934b1f2f024dccaae6d8af5f22c7e6 [2018-11-28 22:44:13,528 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 22:44:13,529 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 22:44:13,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 22:44:13,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 22:44:13,535 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 22:44:13,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:44:13" (1/1) ... [2018-11-28 22:44:13,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fbc0696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:13, skipping insertion in model container [2018-11-28 22:44:13,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:44:13" (1/1) ... [2018-11-28 22:44:13,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 22:44:13,607 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 22:44:14,020 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:44:14,034 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 22:44:14,188 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:44:14,258 INFO L195 MainTranslator]: Completed translation [2018-11-28 22:44:14,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:14 WrapperNode [2018-11-28 22:44:14,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 22:44:14,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 22:44:14,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 22:44:14,259 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 22:44:14,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:14" (1/1) ... [2018-11-28 22:44:14,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:14" (1/1) ... [2018-11-28 22:44:14,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:14" (1/1) ... [2018-11-28 22:44:14,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:14" (1/1) ... [2018-11-28 22:44:14,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:14" (1/1) ... [2018-11-28 22:44:14,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:14" (1/1) ... [2018-11-28 22:44:14,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:14" (1/1) ... [2018-11-28 22:44:14,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 22:44:14,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 22:44:14,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 22:44:14,338 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 22:44:14,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:14" (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 [2018-11-28 22:44:14,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 22:44:14,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 22:44:14,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-11-28 22:44:14,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-11-28 22:44:14,397 INFO L138 BoogieDeclarations]: Found implementation of procedure cstrnlen [2018-11-28 22:44:14,397 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 22:44:14,397 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-11-28 22:44:14,398 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-11-28 22:44:14,398 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 22:44:14,398 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 22:44:14,398 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 22:44:14,398 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 22:44:14,399 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 22:44:14,399 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 22:44:14,399 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 22:44:14,399 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 22:44:14,399 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 22:44:14,400 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 22:44:14,400 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 22:44:14,400 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 22:44:14,401 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 22:44:14,401 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 22:44:14,401 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 22:44:14,402 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 22:44:14,402 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 22:44:14,402 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 22:44:14,402 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 22:44:14,402 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 22:44:14,403 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 22:44:14,403 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 22:44:14,403 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 22:44:14,403 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 22:44:14,403 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 22:44:14,403 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 22:44:14,404 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 22:44:14,404 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 22:44:14,404 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 22:44:14,404 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 22:44:14,404 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 22:44:14,405 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 22:44:14,406 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 22:44:14,406 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 22:44:14,406 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 22:44:14,406 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 22:44:14,407 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 22:44:14,407 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 22:44:14,407 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 22:44:14,407 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 22:44:14,407 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 22:44:14,407 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 22:44:14,407 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 22:44:14,408 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 22:44:14,408 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 22:44:14,408 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 22:44:14,408 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 22:44:14,408 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 22:44:14,408 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 22:44:14,409 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 22:44:14,409 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 22:44:14,409 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 22:44:14,409 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 22:44:14,409 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 22:44:14,409 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 22:44:14,409 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 22:44:14,409 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 22:44:14,410 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 22:44:14,410 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 22:44:14,410 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 22:44:14,410 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 22:44:14,410 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 22:44:14,410 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 22:44:14,410 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 22:44:14,410 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 22:44:14,411 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 22:44:14,411 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 22:44:14,411 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 22:44:14,411 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 22:44:14,411 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 22:44:14,411 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 22:44:14,411 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 22:44:14,412 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 22:44:14,412 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 22:44:14,412 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 22:44:14,412 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 22:44:14,412 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 22:44:14,412 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 22:44:14,412 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 22:44:14,413 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 22:44:14,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 22:44:14,413 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 22:44:14,413 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 22:44:14,413 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 22:44:14,413 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 22:44:14,413 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 22:44:14,413 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 22:44:14,414 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 22:44:14,414 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 22:44:14,414 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 22:44:14,414 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 22:44:14,414 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 22:44:14,414 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 22:44:14,414 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 22:44:14,414 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 22:44:14,415 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 22:44:14,415 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 22:44:14,415 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 22:44:14,415 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 22:44:14,415 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 22:44:14,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-28 22:44:14,415 INFO L130 BoogieDeclarations]: Found specification of procedure cstrnlen [2018-11-28 22:44:14,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 22:44:14,416 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 22:44:14,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 22:44:14,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 22:44:14,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 22:44:14,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 22:44:14,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 22:44:15,115 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 22:44:15,116 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 22:44:15,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:44:15 BoogieIcfgContainer [2018-11-28 22:44:15,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 22:44:15,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 22:44:15,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 22:44:15,120 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 22:44:15,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:44:13" (1/3) ... [2018-11-28 22:44:15,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aae518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:44:15, skipping insertion in model container [2018-11-28 22:44:15,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:14" (2/3) ... [2018-11-28 22:44:15,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aae518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:44:15, skipping insertion in model container [2018-11-28 22:44:15,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:44:15" (3/3) ... [2018-11-28 22:44:15,124 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-11-28 22:44:15,134 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 22:44:15,142 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-11-28 22:44:15,155 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-11-28 22:44:15,188 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 22:44:15,189 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 22:44:15,189 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 22:44:15,189 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 22:44:15,189 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 22:44:15,190 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 22:44:15,190 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 22:44:15,190 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 22:44:15,190 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 22:44:15,204 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-11-28 22:44:15,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 22:44:15,214 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:15,215 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:15,217 INFO L423 AbstractCegarLoop]: === Iteration 1 === [cstrnlenErr1REQUIRES_VIOLATION, cstrnlenErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:44:15,226 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:15,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1446509525, now seen corresponding path program 1 times [2018-11-28 22:44:15,228 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:15,229 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:15,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:15,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:15,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:15,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:15,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:44:15,420 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:44:15,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 22:44:15,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:44:15,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:44:15,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:44:15,438 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 3 states. [2018-11-28 22:44:15,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:44:15,500 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2018-11-28 22:44:15,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:44:15,502 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-28 22:44:15,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:44:15,512 INFO L225 Difference]: With dead ends: 30 [2018-11-28 22:44:15,512 INFO L226 Difference]: Without dead ends: 27 [2018-11-28 22:44:15,514 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:44:15,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-28 22:44:15,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-28 22:44:15,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-28 22:44:15,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2018-11-28 22:44:15,554 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 10 [2018-11-28 22:44:15,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:44:15,554 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2018-11-28 22:44:15,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:44:15,554 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-11-28 22:44:15,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 22:44:15,555 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:15,555 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:15,556 INFO L423 AbstractCegarLoop]: === Iteration 2 === [cstrnlenErr1REQUIRES_VIOLATION, cstrnlenErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:44:15,556 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:15,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1446509524, now seen corresponding path program 1 times [2018-11-28 22:44:15,556 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:15,556 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:15,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:15,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:15,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:15,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:44:15,695 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:44:15,695 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 22:44:15,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 22:44:15,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 22:44:15,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 22:44:15,697 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 4 states. [2018-11-28 22:44:15,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:44:15,735 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2018-11-28 22:44:15,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 22:44:15,737 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-28 22:44:15,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:44:15,738 INFO L225 Difference]: With dead ends: 26 [2018-11-28 22:44:15,738 INFO L226 Difference]: Without dead ends: 26 [2018-11-28 22:44:15,739 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 22:44:15,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-28 22:44:15,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-28 22:44:15,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-28 22:44:15,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2018-11-28 22:44:15,744 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 10 [2018-11-28 22:44:15,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:44:15,744 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2018-11-28 22:44:15,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 22:44:15,745 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2018-11-28 22:44:15,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 22:44:15,745 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:15,745 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:15,746 INFO L423 AbstractCegarLoop]: === Iteration 3 === [cstrnlenErr1REQUIRES_VIOLATION, cstrnlenErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:44:15,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:15,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1365918261, now seen corresponding path program 1 times [2018-11-28 22:44:15,746 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:15,746 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:15,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:15,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:15,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:15,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:44:15,870 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:44:15,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 22:44:15,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 22:44:15,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 22:44:15,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:44:15,871 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 5 states. [2018-11-28 22:44:15,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:44:15,979 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2018-11-28 22:44:15,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:44:15,981 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-11-28 22:44:15,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:44:15,982 INFO L225 Difference]: With dead ends: 25 [2018-11-28 22:44:15,982 INFO L226 Difference]: Without dead ends: 25 [2018-11-28 22:44:15,984 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 22:44:15,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-28 22:44:15,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-11-28 22:44:15,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-28 22:44:15,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2018-11-28 22:44:15,988 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 15 [2018-11-28 22:44:15,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:44:15,990 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2018-11-28 22:44:15,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 22:44:15,990 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2018-11-28 22:44:15,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 22:44:15,991 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:15,991 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:15,991 INFO L423 AbstractCegarLoop]: === Iteration 4 === [cstrnlenErr1REQUIRES_VIOLATION, cstrnlenErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:44:15,991 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:15,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1365918262, now seen corresponding path program 1 times [2018-11-28 22:44:15,993 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:15,993 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:15,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:15,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:15,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:16,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:16,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:44:16,249 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:44:16,249 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 22:44:16,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 22:44:16,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 22:44:16,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-28 22:44:16,251 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 7 states. [2018-11-28 22:44:16,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:44:16,342 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2018-11-28 22:44:16,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 22:44:16,343 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2018-11-28 22:44:16,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:44:16,346 INFO L225 Difference]: With dead ends: 34 [2018-11-28 22:44:16,346 INFO L226 Difference]: Without dead ends: 34 [2018-11-28 22:44:16,347 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-28 22:44:16,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-28 22:44:16,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 28. [2018-11-28 22:44:16,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-28 22:44:16,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2018-11-28 22:44:16,353 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 15 [2018-11-28 22:44:16,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:44:16,353 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2018-11-28 22:44:16,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 22:44:16,354 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2018-11-28 22:44:16,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 22:44:16,354 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:16,355 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:16,355 INFO L423 AbstractCegarLoop]: === Iteration 5 === [cstrnlenErr1REQUIRES_VIOLATION, cstrnlenErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:44:16,355 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:16,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1010346667, now seen corresponding path program 1 times [2018-11-28 22:44:16,355 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:16,356 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:16,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:16,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:16,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:16,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:44:16,416 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:44:16,416 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 22:44:16,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:44:16,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:44:16,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:44:16,417 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 3 states. [2018-11-28 22:44:16,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:44:16,504 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2018-11-28 22:44:16,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:44:16,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-11-28 22:44:16,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:44:16,510 INFO L225 Difference]: With dead ends: 29 [2018-11-28 22:44:16,510 INFO L226 Difference]: Without dead ends: 29 [2018-11-28 22:44:16,510 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:44:16,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-28 22:44:16,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-11-28 22:44:16,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-28 22:44:16,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2018-11-28 22:44:16,520 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 19 [2018-11-28 22:44:16,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:44:16,521 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2018-11-28 22:44:16,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:44:16,521 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2018-11-28 22:44:16,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 22:44:16,526 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:16,526 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:16,527 INFO L423 AbstractCegarLoop]: === Iteration 6 === [cstrnlenErr1REQUIRES_VIOLATION, cstrnlenErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:44:16,528 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:16,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1203115076, now seen corresponding path program 1 times [2018-11-28 22:44:16,528 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:16,528 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:16,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:16,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:16,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:16,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:16,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:44:16,812 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:44:16,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 22:44:16,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 22:44:16,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 22:44:16,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-28 22:44:16,814 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 6 states. [2018-11-28 22:44:17,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:44:17,005 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2018-11-28 22:44:17,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 22:44:17,006 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-11-28 22:44:17,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:44:17,008 INFO L225 Difference]: With dead ends: 45 [2018-11-28 22:44:17,008 INFO L226 Difference]: Without dead ends: 45 [2018-11-28 22:44:17,008 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-28 22:44:17,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-28 22:44:17,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 36. [2018-11-28 22:44:17,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-28 22:44:17,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2018-11-28 22:44:17,020 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 20 [2018-11-28 22:44:17,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:44:17,020 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2018-11-28 22:44:17,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 22:44:17,020 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2018-11-28 22:44:17,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 22:44:17,022 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:17,022 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:17,023 INFO L423 AbstractCegarLoop]: === Iteration 7 === [cstrnlenErr1REQUIRES_VIOLATION, cstrnlenErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:44:17,023 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:17,023 INFO L82 PathProgramCache]: Analyzing trace with hash 616309062, now seen corresponding path program 1 times [2018-11-28 22:44:17,023 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:17,023 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:17,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:17,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:17,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:17,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:44:17,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:44:17,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 22:44:17,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 22:44:17,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 22:44:17,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 22:44:17,121 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 4 states. [2018-11-28 22:44:17,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:44:17,232 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2018-11-28 22:44:17,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 22:44:17,233 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-11-28 22:44:17,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:44:17,235 INFO L225 Difference]: With dead ends: 35 [2018-11-28 22:44:17,235 INFO L226 Difference]: Without dead ends: 25 [2018-11-28 22:44:17,235 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 22:44:17,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-28 22:44:17,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 22. [2018-11-28 22:44:17,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-28 22:44:17,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2018-11-28 22:44:17,238 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 20 [2018-11-28 22:44:17,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:44:17,239 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2018-11-28 22:44:17,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 22:44:17,239 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-11-28 22:44:17,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 22:44:17,240 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:17,240 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:17,240 INFO L423 AbstractCegarLoop]: === Iteration 8 === [cstrnlenErr1REQUIRES_VIOLATION, cstrnlenErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:44:17,241 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:17,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1263944974, now seen corresponding path program 1 times [2018-11-28 22:44:17,241 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:17,241 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:17,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:17,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:17,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:17,416 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:44:17,417 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 22:44:17,417 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 22:44:17,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:17,482 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:44:17,561 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-28 22:44:17,572 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-28 22:44:17,573 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:44:17,581 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:44:17,590 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:44:17,591 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2018-11-28 22:44:17,686 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-28 22:44:17,703 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-28 22:44:17,704 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:44:17,728 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:44:17,750 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:44:17,750 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2018-11-28 22:44:17,831 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:44:17,861 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 22:44:17,861 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 12 [2018-11-28 22:44:17,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 22:44:17,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 22:44:17,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-11-28 22:44:17,863 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 12 states. [2018-11-28 22:44:18,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:44:18,483 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2018-11-28 22:44:18,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-28 22:44:18,484 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2018-11-28 22:44:18,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:44:18,486 INFO L225 Difference]: With dead ends: 53 [2018-11-28 22:44:18,486 INFO L226 Difference]: Without dead ends: 22 [2018-11-28 22:44:18,487 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2018-11-28 22:44:18,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-28 22:44:18,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-28 22:44:18,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-28 22:44:18,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-11-28 22:44:18,489 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 21 [2018-11-28 22:44:18,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:44:18,490 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-11-28 22:44:18,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 22:44:18,490 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-11-28 22:44:18,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 22:44:18,491 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:18,491 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:18,491 INFO L423 AbstractCegarLoop]: === Iteration 9 === [cstrnlenErr1REQUIRES_VIOLATION, cstrnlenErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2018-11-28 22:44:18,491 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:18,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1027035954, now seen corresponding path program 1 times [2018-11-28 22:44:18,492 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:18,492 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:18,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:18,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:18,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:18,766 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:44:18,767 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 22:44:18,767 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 22:44:18,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:18,804 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:44:18,826 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-28 22:44:18,826 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 22:44:18,879 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:44:18,879 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-28 22:44:18,908 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-11-28 22:44:18,910 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-28 22:44:18,911 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:44:18,914 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:44:18,920 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:44:18,920 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2018-11-28 22:44:18,976 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-28 22:44:18,988 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-11-28 22:44:18,989 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-28 22:44:18,994 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-28 22:44:19,008 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-28 22:44:19,008 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:34 [2018-11-28 22:44:19,235 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:44:19,255 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 22:44:19,255 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2018-11-28 22:44:19,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-28 22:44:19,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-28 22:44:19,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2018-11-28 22:44:19,256 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 18 states. [2018-11-28 22:44:19,567 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-11-28 22:44:19,953 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 40 [2018-11-28 22:44:20,285 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2018-11-28 22:44:20,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:44:20,358 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-11-28 22:44:20,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-28 22:44:20,359 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 21 [2018-11-28 22:44:20,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:44:20,360 INFO L225 Difference]: With dead ends: 24 [2018-11-28 22:44:20,360 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 22:44:20,361 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=140, Invalid=616, Unknown=0, NotChecked=0, Total=756 [2018-11-28 22:44:20,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 22:44:20,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 22:44:20,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 22:44:20,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 22:44:20,362 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-11-28 22:44:20,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:44:20,362 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 22:44:20,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-28 22:44:20,363 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 22:44:20,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 22:44:20,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:44:20 BoogieIcfgContainer [2018-11-28 22:44:20,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 22:44:20,368 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 22:44:20,368 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 22:44:20,369 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 22:44:20,369 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:44:15" (3/4) ... [2018-11-28 22:44:20,373 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 22:44:20,380 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 22:44:20,380 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2018-11-28 22:44:20,380 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cstrnlen [2018-11-28 22:44:20,380 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2018-11-28 22:44:20,380 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 22:44:20,385 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-11-28 22:44:20,385 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-28 22:44:20,385 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 22:44:20,437 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 22:44:20,437 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 22:44:20,438 INFO L168 Benchmark]: Toolchain (without parser) took 6910.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 198.7 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -164.9 MB). Peak memory consumption was 33.8 MB. Max. memory is 11.5 GB. [2018-11-28 22:44:20,439 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:44:20,440 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -144.7 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2018-11-28 22:44:20,440 INFO L168 Benchmark]: Boogie Preprocessor took 78.41 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:44:20,448 INFO L168 Benchmark]: RCFGBuilder took 778.36 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: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 11.5 GB. [2018-11-28 22:44:20,449 INFO L168 Benchmark]: TraceAbstraction took 5250.79 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 80.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -60.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-11-28 22:44:20,449 INFO L168 Benchmark]: Witness Printer took 69.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2018-11-28 22:44:20,453 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 728.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -144.7 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 78.41 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 778.36 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: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5250.79 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 80.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -60.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * Witness Printer took 69.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 544]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 544]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 558]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 558]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 37 locations, 5 error locations. SAFE Result, 5.1s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 2.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 198 SDtfs, 165 SDslu, 496 SDs, 0 SdLazy, 354 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 193 NumberOfCodeBlocks, 193 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 15047 SizeOfPredicates, 17 NumberOfNonLiveVariables, 184 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 6/14 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...