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 -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/heap-manipulation/tree-3.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:45:30,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:45:30,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:45:30,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:45:30,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:45:30,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:45:30,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:45:30,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:45:30,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:45:30,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:45:30,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:45:30,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:45:30,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:45:30,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:45:30,375 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:45:30,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:45:30,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:45:30,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:45:30,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:45:30,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:45:30,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:45:30,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:45:30,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:45:30,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:45:30,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:45:30,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:45:30,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:45:30,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:45:30,393 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:45:30,394 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:45:30,394 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:45:30,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:45:30,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:45:30,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:45:30,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:45:30,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:45:30,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:45:30,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:45:30,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:45:30,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:45:30,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:45:30,408 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 01:45:30,434 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:45:30,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:45:30,436 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:45:30,436 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:45:30,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:45:30,437 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:45:30,437 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:45:30,437 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:45:30,438 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:45:30,438 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:45:30,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:45:30,442 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:45:30,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:45:30,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:45:30,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:45:30,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:45:30,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:45:30,444 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:45:30,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:45:30,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:45:30,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:45:30,445 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:45:30,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:45:30,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:45:30,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:45:30,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:45:30,448 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:45:30,448 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:45:30,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:45:30,448 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:45:30,504 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:45:30,516 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:45:30,519 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:45:30,521 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:45:30,523 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:45:30,525 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/tree-3.i [2019-09-10 01:45:30,595 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/666498a4e/a13a3b29adb2481f93ca482921decf2e/FLAG51d89e221 [2019-09-10 01:45:31,168 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:45:31,168 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/tree-3.i [2019-09-10 01:45:31,187 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/666498a4e/a13a3b29adb2481f93ca482921decf2e/FLAG51d89e221 [2019-09-10 01:45:31,495 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/666498a4e/a13a3b29adb2481f93ca482921decf2e [2019-09-10 01:45:31,505 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:45:31,506 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:45:31,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:45:31,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:45:31,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:45:31,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:45:31" (1/1) ... [2019-09-10 01:45:31,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69ab725e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:31, skipping insertion in model container [2019-09-10 01:45:31,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:45:31" (1/1) ... [2019-09-10 01:45:31,523 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:45:31,572 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:45:32,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:45:32,026 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:45:32,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:45:32,151 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:45:32,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:32 WrapperNode [2019-09-10 01:45:32,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:45:32,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:45:32,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:45:32,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:45:32,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:32" (1/1) ... [2019-09-10 01:45:32,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:32" (1/1) ... [2019-09-10 01:45:32,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:32" (1/1) ... [2019-09-10 01:45:32,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:32" (1/1) ... [2019-09-10 01:45:32,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:32" (1/1) ... [2019-09-10 01:45:32,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:32" (1/1) ... [2019-09-10 01:45:32,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:32" (1/1) ... [2019-09-10 01:45:32,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:45:32,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:45:32,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:45:32,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:45:32,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:45:32,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:45:32,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:45:32,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-10 01:45:32,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-10 01:45:32,272 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2019-09-10 01:45:32,272 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2019-09-10 01:45:32,272 INFO L138 BoogieDeclarations]: Found implementation of procedure create_tree [2019-09-10 01:45:32,272 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tree [2019-09-10 01:45:32,272 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:45:32,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:45:32,273 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-10 01:45:32,273 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-10 01:45:32,273 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-10 01:45:32,273 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-10 01:45:32,273 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-10 01:45:32,274 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-10 01:45:32,274 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-10 01:45:32,274 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-10 01:45:32,274 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-10 01:45:32,274 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-10 01:45:32,274 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-10 01:45:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-10 01:45:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-10 01:45:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-10 01:45:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-10 01:45:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-10 01:45:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-10 01:45:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-10 01:45:32,276 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-10 01:45:32,276 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-10 01:45:32,276 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-10 01:45:32,276 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-10 01:45:32,276 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-10 01:45:32,276 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-10 01:45:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-10 01:45:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-10 01:45:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-10 01:45:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-10 01:45:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-10 01:45:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-10 01:45:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-10 01:45:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-10 01:45:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-10 01:45:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-10 01:45:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-10 01:45:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-10 01:45:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-10 01:45:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-10 01:45:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-10 01:45:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-10 01:45:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-10 01:45:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-10 01:45:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-10 01:45:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-10 01:45:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-10 01:45:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-10 01:45:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-10 01:45:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-10 01:45:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-10 01:45:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-10 01:45:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-10 01:45:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-10 01:45:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 01:45:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 01:45:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-10 01:45:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 01:45:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-10 01:45:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-10 01:45:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-10 01:45:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-10 01:45:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-10 01:45:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-10 01:45:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-10 01:45:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 01:45:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-10 01:45:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-10 01:45:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-10 01:45:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-10 01:45:32,284 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-10 01:45:32,284 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-10 01:45:32,284 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-10 01:45:32,284 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-10 01:45:32,284 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-10 01:45:32,284 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-10 01:45:32,285 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-10 01:45:32,285 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-10 01:45:32,285 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-10 01:45:32,285 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-10 01:45:32,285 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-10 01:45:32,285 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-10 01:45:32,286 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-10 01:45:32,286 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-10 01:45:32,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-10 01:45:32,286 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-10 01:45:32,286 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-10 01:45:32,286 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-10 01:45:32,288 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-10 01:45:32,288 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-10 01:45:32,288 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-10 01:45:32,289 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-10 01:45:32,289 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-10 01:45:32,289 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-10 01:45:32,289 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-10 01:45:32,289 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-10 01:45:32,289 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-10 01:45:32,290 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-10 01:45:32,290 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-10 01:45:32,290 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-10 01:45:32,290 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-10 01:45:32,290 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-10 01:45:32,290 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-10 01:45:32,290 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-10 01:45:32,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 01:45:32,291 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2019-09-10 01:45:32,291 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2019-09-10 01:45:32,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 01:45:32,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:45:32,291 INFO L130 BoogieDeclarations]: Found specification of procedure create_tree [2019-09-10 01:45:32,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 01:45:32,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 01:45:32,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:45:32,292 INFO L130 BoogieDeclarations]: Found specification of procedure free_tree [2019-09-10 01:45:32,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:45:32,293 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:45:32,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:45:32,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:45:32,970 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:45:32,970 INFO L283 CfgBuilder]: Removed 11 assume(true) statements. [2019-09-10 01:45:32,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:45:32 BoogieIcfgContainer [2019-09-10 01:45:32,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:45:32,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:45:32,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:45:32,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:45:32,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:45:31" (1/3) ... [2019-09-10 01:45:32,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61109a76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:45:32, skipping insertion in model container [2019-09-10 01:45:32,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:32" (2/3) ... [2019-09-10 01:45:32,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61109a76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:45:32, skipping insertion in model container [2019-09-10 01:45:32,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:45:32" (3/3) ... [2019-09-10 01:45:32,979 INFO L109 eAbstractionObserver]: Analyzing ICFG tree-3.i [2019-09-10 01:45:32,989 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:45:32,997 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:45:33,014 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:45:33,041 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:45:33,041 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:45:33,041 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:45:33,041 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:45:33,042 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:45:33,042 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:45:33,042 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:45:33,043 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:45:33,060 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states. [2019-09-10 01:45:33,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-10 01:45:33,070 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:45:33,071 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:45:33,074 INFO L418 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:45:33,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:33,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1482346922, now seen corresponding path program 1 times [2019-09-10 01:45:33,082 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:45:33,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:33,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:45:33,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:33,142 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:45:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:45:33,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:45:33,220 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:45:33,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 01:45:33,221 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:45:33,226 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:45:33,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:45:33,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:45:33,248 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 2 states. [2019-09-10 01:45:33,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:45:33,271 INFO L93 Difference]: Finished difference Result 60 states and 74 transitions. [2019-09-10 01:45:33,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:45:33,273 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2019-09-10 01:45:33,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:45:33,285 INFO L225 Difference]: With dead ends: 60 [2019-09-10 01:45:33,285 INFO L226 Difference]: Without dead ends: 41 [2019-09-10 01:45:33,287 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:45:33,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-09-10 01:45:33,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-09-10 01:45:33,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-09-10 01:45:33,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2019-09-10 01:45:33,326 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 20 [2019-09-10 01:45:33,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:45:33,327 INFO L475 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2019-09-10 01:45:33,327 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:45:33,327 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2019-09-10 01:45:33,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-09-10 01:45:33,328 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:45:33,328 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:45:33,329 INFO L418 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:45:33,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:33,329 INFO L82 PathProgramCache]: Analyzing trace with hash 408252632, now seen corresponding path program 1 times [2019-09-10 01:45:33,330 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:45:33,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:33,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:45:33,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:33,332 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:45:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:45:33,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:45:33,412 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:45:33,412 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 01:45:33,412 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:45:33,414 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 01:45:33,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 01:45:33,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 01:45:33,415 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 3 states. [2019-09-10 01:45:33,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:45:33,480 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2019-09-10 01:45:33,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 01:45:33,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-09-10 01:45:33,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:45:33,483 INFO L225 Difference]: With dead ends: 45 [2019-09-10 01:45:33,483 INFO L226 Difference]: Without dead ends: 45 [2019-09-10 01:45:33,484 INFO L628 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 [2019-09-10 01:45:33,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-09-10 01:45:33,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-09-10 01:45:33,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-09-10 01:45:33,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2019-09-10 01:45:33,491 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 21 [2019-09-10 01:45:33,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:45:33,491 INFO L475 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2019-09-10 01:45:33,492 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 01:45:33,492 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2019-09-10 01:45:33,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-09-10 01:45:33,493 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:45:33,493 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:45:33,493 INFO L418 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:45:33,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:33,494 INFO L82 PathProgramCache]: Analyzing trace with hash 666418070, now seen corresponding path program 1 times [2019-09-10 01:45:33,494 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:45:33,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:33,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:45:33,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:33,496 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:45:33,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:45:33,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:45:33,620 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:45:33,620 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 01:45:33,621 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:45:33,621 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 01:45:33,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 01:45:33,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 01:45:33,622 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. Second operand 6 states. [2019-09-10 01:45:33,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:45:33,688 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2019-09-10 01:45:33,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 01:45:33,689 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2019-09-10 01:45:33,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:45:33,690 INFO L225 Difference]: With dead ends: 57 [2019-09-10 01:45:33,690 INFO L226 Difference]: Without dead ends: 50 [2019-09-10 01:45:33,691 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-10 01:45:33,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-09-10 01:45:33,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 47. [2019-09-10 01:45:33,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-09-10 01:45:33,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions. [2019-09-10 01:45:33,697 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 21 [2019-09-10 01:45:33,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:45:33,698 INFO L475 AbstractCegarLoop]: Abstraction has 47 states and 55 transitions. [2019-09-10 01:45:33,698 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 01:45:33,698 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2019-09-10 01:45:33,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-09-10 01:45:33,700 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:45:33,700 INFO L399 BasicCegarLoop]: trace histogram [2, 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] [2019-09-10 01:45:33,701 INFO L418 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:45:33,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:33,701 INFO L82 PathProgramCache]: Analyzing trace with hash -314025979, now seen corresponding path program 1 times [2019-09-10 01:45:33,701 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:45:33,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:33,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:45:33,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:33,706 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:45:33,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:45:33,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:45:33,801 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:45:33,801 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 01:45:33,801 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:45:33,802 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 01:45:33,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 01:45:33,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 01:45:33,802 INFO L87 Difference]: Start difference. First operand 47 states and 55 transitions. Second operand 3 states. [2019-09-10 01:45:33,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:45:33,860 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2019-09-10 01:45:33,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 01:45:33,860 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-09-10 01:45:33,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:45:33,862 INFO L225 Difference]: With dead ends: 49 [2019-09-10 01:45:33,862 INFO L226 Difference]: Without dead ends: 49 [2019-09-10 01:45:33,862 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 01:45:33,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-09-10 01:45:33,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2019-09-10 01:45:33,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-09-10 01:45:33,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2019-09-10 01:45:33,868 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 29 [2019-09-10 01:45:33,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:45:33,868 INFO L475 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2019-09-10 01:45:33,869 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 01:45:33,869 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2019-09-10 01:45:33,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-09-10 01:45:33,870 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:45:33,870 INFO L399 BasicCegarLoop]: trace histogram [2, 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] [2019-09-10 01:45:33,870 INFO L418 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:45:33,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:33,871 INFO L82 PathProgramCache]: Analyzing trace with hash -154125966, now seen corresponding path program 1 times [2019-09-10 01:45:33,871 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:45:33,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:33,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:45:33,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:33,872 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:45:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:45:34,046 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-10 01:45:34,046 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:45:34,046 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-10 01:45:34,046 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:45:34,047 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-10 01:45:34,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-10 01:45:34,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-09-10 01:45:34,048 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand 11 states. [2019-09-10 01:45:34,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:45:34,379 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2019-09-10 01:45:34,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-10 01:45:34,380 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 32 [2019-09-10 01:45:34,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:45:34,381 INFO L225 Difference]: With dead ends: 60 [2019-09-10 01:45:34,382 INFO L226 Difference]: Without dead ends: 60 [2019-09-10 01:45:34,382 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2019-09-10 01:45:34,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-09-10 01:45:34,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 46. [2019-09-10 01:45:34,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-09-10 01:45:34,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2019-09-10 01:45:34,388 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 32 [2019-09-10 01:45:34,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:45:34,388 INFO L475 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2019-09-10 01:45:34,388 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-10 01:45:34,388 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2019-09-10 01:45:34,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-09-10 01:45:34,389 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:45:34,390 INFO L399 BasicCegarLoop]: trace histogram [2, 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] [2019-09-10 01:45:34,390 INFO L418 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:45:34,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:34,390 INFO L82 PathProgramCache]: Analyzing trace with hash 2017740131, now seen corresponding path program 1 times [2019-09-10 01:45:34,390 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:45:34,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:34,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:45:34,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:34,392 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:45:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:45:34,768 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 37 [2019-09-10 01:45:34,936 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:45:34,936 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:45:34,936 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 01:45:34,937 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 37 with the following transitions: [2019-09-10 01:45:34,939 INFO L207 CegarAbsIntRunner]: [2], [5], [6], [8], [12], [17], [22], [25], [27], [32], [34], [39], [41], [44], [48], [54], [63], [65], [70], [72], [76], [77], [78], [87], [106], [110], [113], [157], [210], [211], [212], [218], [222], [223], [224] [2019-09-10 01:45:34,990 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 01:45:34,991 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 01:45:35,129 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 01:45:35,132 INFO L272 AbstractInterpreter]: Visited 11 different actions 11 times. Never merged. Never widened. Performed 35 root evaluator evaluations with a maximum evaluation depth of 5. Performed 35 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Never found a fixpoint. Largest state had 39 variables. [2019-09-10 01:45:35,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:35,137 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 01:45:35,214 INFO L227 lantSequenceWeakener]: Weakened 10 states. On average, predicates are now at 78.61% of their original sizes. [2019-09-10 01:45:35,214 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 01:45:35,244 INFO L420 sIntCurrentIteration]: We unified 35 AI predicates to 35 [2019-09-10 01:45:35,244 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 01:45:35,245 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 01:45:35,245 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2019-09-10 01:45:35,245 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:45:35,246 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 01:45:35,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 01:45:35,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-09-10 01:45:35,247 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand 6 states. [2019-09-10 01:45:35,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:45:35,261 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2019-09-10 01:45:35,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 01:45:35,261 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2019-09-10 01:45:35,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:45:35,262 INFO L225 Difference]: With dead ends: 9 [2019-09-10 01:45:35,262 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 01:45:35,263 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-09-10 01:45:35,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 01:45:35,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 01:45:35,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 01:45:35,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 01:45:35,264 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2019-09-10 01:45:35,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:45:35,264 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 01:45:35,264 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 01:45:35,264 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 01:45:35,265 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 01:45:35,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:45:35 BoogieIcfgContainer [2019-09-10 01:45:35,275 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:45:35,279 INFO L168 Benchmark]: Toolchain (without parser) took 3770.72 ms. Allocated memory was 133.2 MB in the beginning and 263.7 MB in the end (delta: 130.5 MB). Free memory was 87.7 MB in the beginning and 217.8 MB in the end (delta: -130.1 MB). Peak memory consumption was 405.3 kB. Max. memory is 7.1 GB. [2019-09-10 01:45:35,280 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 133.2 MB. Free memory is still 107.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 01:45:35,283 INFO L168 Benchmark]: CACSL2BoogieTranslator took 644.44 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 87.3 MB in the beginning and 162.7 MB in the end (delta: -75.5 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2019-09-10 01:45:35,284 INFO L168 Benchmark]: Boogie Preprocessor took 65.31 ms. Allocated memory is still 199.8 MB. Free memory was 162.7 MB in the beginning and 160.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:45:35,289 INFO L168 Benchmark]: RCFGBuilder took 754.03 ms. Allocated memory is still 199.8 MB. Free memory was 160.1 MB in the beginning and 108.2 MB in the end (delta: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 7.1 GB. [2019-09-10 01:45:35,290 INFO L168 Benchmark]: TraceAbstraction took 2302.47 ms. Allocated memory was 199.8 MB in the beginning and 263.7 MB in the end (delta: 64.0 MB). Free memory was 107.3 MB in the beginning and 217.8 MB in the end (delta: -110.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 01:45:35,301 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 133.2 MB. Free memory is still 107.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 644.44 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 87.3 MB in the beginning and 162.7 MB in the end (delta: -75.5 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 65.31 ms. Allocated memory is still 199.8 MB. Free memory was 162.7 MB in the beginning and 160.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 754.03 ms. Allocated memory is still 199.8 MB. Free memory was 160.1 MB in the beginning and 108.2 MB in the end (delta: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2302.47 ms. Allocated memory was 199.8 MB in the beginning and 263.7 MB in the end (delta: 64.0 MB). Free memory was 107.3 MB in the beginning and 217.8 MB in the end (delta: -110.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 554]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 69 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 249 SDtfs, 89 SDslu, 476 SDs, 0 SdLazy, 208 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9587301587301588 AbsIntWeakeningRatio, 1.2 AbsIntAvgWeakeningVarsNumRemoved, 0.9428571428571428 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 19 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 30195 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 7/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...