/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-simple-white-blue-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 22:20:40,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 22:20:40,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 22:20:40,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 22:20:40,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 22:20:40,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 22:20:40,377 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 22:20:40,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 22:20:40,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 22:20:40,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 22:20:40,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 22:20:40,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 22:20:40,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 22:20:40,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 22:20:40,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 22:20:40,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 22:20:40,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 22:20:40,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 22:20:40,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 22:20:40,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 22:20:40,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 22:20:40,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 22:20:40,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 22:20:40,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 22:20:40,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 22:20:40,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 22:20:40,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 22:20:40,419 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 22:20:40,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 22:20:40,420 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 22:20:40,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 22:20:40,421 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 22:20:40,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 22:20:40,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 22:20:40,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 22:20:40,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 22:20:40,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 22:20:40,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 22:20:40,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 22:20:40,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 22:20:40,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 22:20:40,428 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 22:20:40,445 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 22:20:40,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 22:20:40,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 22:20:40,448 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 22:20:40,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 22:20:40,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 22:20:40,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 22:20:40,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 22:20:40,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 22:20:40,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 22:20:40,450 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 22:20:40,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 22:20:40,451 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 22:20:40,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 22:20:40,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 22:20:40,452 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 22:20:40,452 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 22:20:40,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 22:20:40,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 22:20:40,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 22:20:40,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 22:20:40,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 22:20:40,453 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-08-22 22:20:40,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 22:20:40,734 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 22:20:40,737 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 22:20:40,739 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 22:20:40,739 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 22:20:40,740 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-simple-white-blue-2.i [2020-08-22 22:20:40,815 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7d4704ba/5f2d8b1b69ae493bb48cb791a2f7f7f3/FLAGa85e03845 [2020-08-22 22:20:41,343 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 22:20:41,344 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-simple-white-blue-2.i [2020-08-22 22:20:41,364 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7d4704ba/5f2d8b1b69ae493bb48cb791a2f7f7f3/FLAGa85e03845 [2020-08-22 22:20:41,599 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7d4704ba/5f2d8b1b69ae493bb48cb791a2f7f7f3 [2020-08-22 22:20:41,609 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 22:20:41,611 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 22:20:41,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 22:20:41,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 22:20:41,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 22:20:41,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:20:41" (1/1) ... [2020-08-22 22:20:41,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ac45c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:41, skipping insertion in model container [2020-08-22 22:20:41,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:20:41" (1/1) ... [2020-08-22 22:20:41,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 22:20:41,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 22:20:42,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 22:20:42,135 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 22:20:42,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 22:20:42,246 INFO L208 MainTranslator]: Completed translation [2020-08-22 22:20:42,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:42 WrapperNode [2020-08-22 22:20:42,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 22:20:42,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 22:20:42,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 22:20:42,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 22:20:42,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:42" (1/1) ... [2020-08-22 22:20:42,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:42" (1/1) ... [2020-08-22 22:20:42,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:42" (1/1) ... [2020-08-22 22:20:42,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:42" (1/1) ... [2020-08-22 22:20:42,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:42" (1/1) ... [2020-08-22 22:20:42,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:42" (1/1) ... [2020-08-22 22:20:42,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:42" (1/1) ... [2020-08-22 22:20:42,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 22:20:42,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 22:20:42,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 22:20:42,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 22:20:42,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:42" (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 [2020-08-22 22:20:42,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 22:20:42,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 22:20:42,378 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 22:20:42,378 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-22 22:20:42,378 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-22 22:20:42,378 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-22 22:20:42,378 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-22 22:20:42,379 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-22 22:20:42,379 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-22 22:20:42,379 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-22 22:20:42,379 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-22 22:20:42,379 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-22 22:20:42,379 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-22 22:20:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-22 22:20:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-22 22:20:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-22 22:20:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-22 22:20:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-22 22:20:42,381 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-22 22:20:42,381 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-22 22:20:42,381 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-22 22:20:42,381 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-22 22:20:42,381 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-22 22:20:42,381 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-22 22:20:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-22 22:20:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-22 22:20:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-22 22:20:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-22 22:20:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-22 22:20:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-22 22:20:42,383 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-22 22:20:42,383 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-22 22:20:42,383 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-22 22:20:42,383 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-22 22:20:42,383 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-22 22:20:42,383 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-22 22:20:42,384 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-22 22:20:42,384 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-22 22:20:42,384 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-22 22:20:42,384 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-22 22:20:42,384 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-22 22:20:42,384 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-22 22:20:42,384 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-22 22:20:42,385 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-22 22:20:42,385 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-22 22:20:42,385 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-22 22:20:42,385 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-22 22:20:42,385 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-22 22:20:42,385 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-22 22:20:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-22 22:20:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-22 22:20:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-22 22:20:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-22 22:20:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 22:20:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-22 22:20:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-22 22:20:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 22:20:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-22 22:20:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-22 22:20:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-22 22:20:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-22 22:20:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-08-22 22:20:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 22:20:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-22 22:20:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-08-22 22:20:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-22 22:20:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 22:20:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-08-22 22:20:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-22 22:20:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-22 22:20:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-22 22:20:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-22 22:20:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-22 22:20:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-22 22:20:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-22 22:20:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-22 22:20:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-22 22:20:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-22 22:20:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-22 22:20:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-22 22:20:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-22 22:20:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-22 22:20:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-22 22:20:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-22 22:20:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-22 22:20:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-22 22:20:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-22 22:20:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-22 22:20:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-22 22:20:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-22 22:20:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-22 22:20:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-22 22:20:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-22 22:20:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-22 22:20:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-22 22:20:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-22 22:20:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-22 22:20:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-22 22:20:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-22 22:20:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-22 22:20:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-22 22:20:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-22 22:20:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-22 22:20:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-22 22:20:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-08-22 22:20:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-22 22:20:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 22:20:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 22:20:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 22:20:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 22:20:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 22:20:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 22:20:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 22:20:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 22:20:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 22:20:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 22:20:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 22:20:42,928 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 22:20:42,928 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-08-22 22:20:42,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:20:42 BoogieIcfgContainer [2020-08-22 22:20:42,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 22:20:42,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 22:20:42,935 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 22:20:42,939 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 22:20:42,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 10:20:41" (1/3) ... [2020-08-22 22:20:42,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6439ee49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:20:42, skipping insertion in model container [2020-08-22 22:20:42,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:42" (2/3) ... [2020-08-22 22:20:42,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6439ee49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:20:42, skipping insertion in model container [2020-08-22 22:20:42,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:20:42" (3/3) ... [2020-08-22 22:20:42,943 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-simple-white-blue-2.i [2020-08-22 22:20:42,954 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 22:20:42,962 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 22:20:42,976 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 22:20:43,003 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 22:20:43,004 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 22:20:43,004 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 22:20:43,004 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 22:20:43,005 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 22:20:43,005 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 22:20:43,005 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 22:20:43,005 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 22:20:43,029 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-08-22 22:20:43,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-08-22 22:20:43,050 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:20:43,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:20:43,056 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:20:43,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:20:43,064 INFO L82 PathProgramCache]: Analyzing trace with hash -65050132, now seen corresponding path program 1 times [2020-08-22 22:20:43,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:20:43,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746582313] [2020-08-22 22:20:43,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:20:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:20:43,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:20:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:20:43,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 22:20:43,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746582313] [2020-08-22 22:20:43,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 22:20:43,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 22:20:43,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113615771] [2020-08-22 22:20:43,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 22:20:43,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:20:43,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 22:20:43,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 22:20:43,357 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 3 states. [2020-08-22 22:20:43,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:20:43,580 INFO L93 Difference]: Finished difference Result 154 states and 181 transitions. [2020-08-22 22:20:43,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 22:20:43,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-08-22 22:20:43,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:20:43,592 INFO L225 Difference]: With dead ends: 154 [2020-08-22 22:20:43,593 INFO L226 Difference]: Without dead ends: 76 [2020-08-22 22:20:43,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 22:20:43,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-08-22 22:20:43,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-08-22 22:20:43,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-08-22 22:20:43,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions. [2020-08-22 22:20:43,643 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 31 [2020-08-22 22:20:43,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:20:43,643 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 81 transitions. [2020-08-22 22:20:43,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 22:20:43,644 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2020-08-22 22:20:43,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-08-22 22:20:43,645 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:20:43,646 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:20:43,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 22:20:43,646 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:20:43,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:20:43,647 INFO L82 PathProgramCache]: Analyzing trace with hash 30028786, now seen corresponding path program 1 times [2020-08-22 22:20:43,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:20:43,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [631625370] [2020-08-22 22:20:43,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:20:43,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 22:20:43,714 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 22:20:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 22:20:43,743 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 22:20:43,775 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 22:20:43,775 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 22:20:43,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 22:20:43,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 10:20:43 BoogieIcfgContainer [2020-08-22 22:20:43,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 22:20:43,816 INFO L168 Benchmark]: Toolchain (without parser) took 2204.16 ms. Allocated memory was 147.3 MB in the beginning and 235.9 MB in the end (delta: 88.6 MB). Free memory was 101.6 MB in the beginning and 177.2 MB in the end (delta: -75.6 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-08-22 22:20:43,817 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 147.3 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 22:20:43,818 INFO L168 Benchmark]: CACSL2BoogieTranslator took 635.63 ms. Allocated memory was 147.3 MB in the beginning and 205.0 MB in the end (delta: 57.7 MB). Free memory was 101.4 MB in the beginning and 172.1 MB in the end (delta: -70.7 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-08-22 22:20:43,819 INFO L168 Benchmark]: Boogie Preprocessor took 61.42 ms. Allocated memory is still 205.0 MB. Free memory was 172.1 MB in the beginning and 169.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-08-22 22:20:43,819 INFO L168 Benchmark]: RCFGBuilder took 623.21 ms. Allocated memory is still 205.0 MB. Free memory was 169.2 MB in the beginning and 118.6 MB in the end (delta: 50.5 MB). Peak memory consumption was 50.5 MB. Max. memory is 7.1 GB. [2020-08-22 22:20:43,820 INFO L168 Benchmark]: TraceAbstraction took 878.59 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 118.6 MB in the beginning and 177.2 MB in the end (delta: -58.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-22 22:20:43,825 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 147.3 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 635.63 ms. Allocated memory was 147.3 MB in the beginning and 205.0 MB in the end (delta: 57.7 MB). Free memory was 101.4 MB in the beginning and 172.1 MB in the end (delta: -70.7 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 61.42 ms. Allocated memory is still 205.0 MB. Free memory was 172.1 MB in the beginning and 169.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 623.21 ms. Allocated memory is still 205.0 MB. Free memory was 169.2 MB in the beginning and 118.6 MB in the end (delta: 50.5 MB). Peak memory consumption was 50.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 878.59 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 118.6 MB in the beginning and 177.2 MB in the end (delta: -58.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1042]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L988] SLL* head = malloc(sizeof(SLL)); VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L989] head->next = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L990] head->data = 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L992] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L995] COND FALSE !(__VERIFIER_nondet_int()) VAL [__VERIFIER_nondet_int()=0, head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1005] COND TRUE __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1006] x = malloc(sizeof(SLL)) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}] [L1007] x->data = 1 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}] [L1008] x->next = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}] [L1009] head = x VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}] [L1029] x = head VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}] [L1032] EXPR x->data VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}, x->data=1] [L1032] COND FALSE !(x->data != 1) VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}, x->data=1] [L1038] EXPR x->next VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}, x->next={-1:0}] [L1038] x = x->next VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}, x->next={-1:0}] [L1039] COND TRUE \read(*x) VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}] [L1041] EXPR x->data VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}, x->data=0] [L1041] COND TRUE x->data != 1 VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}, x->data=0] [L1042] __VERIFIER_error() VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 89 locations, 1 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: 93 SDtfs, 0 SDslu, 5 SDs, 0 SdLazy, 88 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred 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, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 1170 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...