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/forester-heap/sll-sorted-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:07:07,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:07:07,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:07:07,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:07:07,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:07:07,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:07:07,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:07:07,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:07:07,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:07:07,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:07:07,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:07:07,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:07:07,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:07:07,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:07:07,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:07:07,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:07:07,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:07:07,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:07:07,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:07:07,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:07:07,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:07:07,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:07:07,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:07:07,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:07:07,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:07:07,260 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:07:07,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:07:07,261 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:07:07,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:07:07,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:07:07,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:07:07,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:07:07,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:07:07,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:07:07,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:07:07,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:07:07,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:07:07,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:07:07,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:07:07,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:07:07,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:07:07,278 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 [2019-09-16 17:07:07,292 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:07:07,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:07:07,293 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:07:07,293 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:07:07,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:07:07,294 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:07:07,294 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:07:07,294 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:07:07,294 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:07:07,295 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:07:07,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:07:07,295 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:07:07,296 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:07:07,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:07:07,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:07:07,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:07:07,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:07:07,297 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:07:07,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:07:07,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:07:07,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:07:07,297 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:07:07,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:07:07,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:07:07,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:07:07,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:07:07,298 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:07:07,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:07:07,299 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:07:07,299 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:07:07,338 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:07:07,352 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:07:07,361 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:07:07,363 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:07:07,364 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:07:07,366 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-sorted-2.i [2019-09-16 17:07:07,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0469ba106/a9f3fbcf4db94f4081eb7c47d5f2cc54/FLAGb78434a68 [2019-09-16 17:07:07,989 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:07:07,991 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-sorted-2.i [2019-09-16 17:07:08,012 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0469ba106/a9f3fbcf4db94f4081eb7c47d5f2cc54/FLAGb78434a68 [2019-09-16 17:07:08,288 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0469ba106/a9f3fbcf4db94f4081eb7c47d5f2cc54 [2019-09-16 17:07:08,296 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:07:08,298 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:07:08,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:08,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:07:08,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:07:08,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:08" (1/1) ... [2019-09-16 17:07:08,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e0db5b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:08, skipping insertion in model container [2019-09-16 17:07:08,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:08" (1/1) ... [2019-09-16 17:07:08,313 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:07:08,373 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:07:08,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:08,821 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:07:08,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:08,918 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:07:08,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:08 WrapperNode [2019-09-16 17:07:08,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:08,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:07:08,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:07:08,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:07:08,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:08" (1/1) ... [2019-09-16 17:07:08,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:08" (1/1) ... [2019-09-16 17:07:08,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:08" (1/1) ... [2019-09-16 17:07:08,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:08" (1/1) ... [2019-09-16 17:07:08,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:08" (1/1) ... [2019-09-16 17:07:08,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:08" (1/1) ... [2019-09-16 17:07:08,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:08" (1/1) ... [2019-09-16 17:07:09,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:07:09,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:07:09,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:07:09,001 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:07:09,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:08" (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 [2019-09-16 17:07:09,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:07:09,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:07:09,059 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:07:09,060 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-16 17:07:09,060 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-16 17:07:09,060 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-16 17:07:09,060 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-16 17:07:09,060 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-16 17:07:09,060 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-16 17:07:09,060 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-16 17:07:09,061 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-16 17:07:09,061 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-16 17:07:09,061 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-16 17:07:09,061 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-16 17:07:09,061 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-16 17:07:09,062 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-16 17:07:09,062 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-16 17:07:09,062 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-16 17:07:09,062 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-16 17:07:09,062 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-16 17:07:09,062 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-16 17:07:09,063 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-16 17:07:09,063 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-16 17:07:09,063 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-16 17:07:09,063 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-16 17:07:09,063 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-16 17:07:09,063 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-16 17:07:09,064 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-16 17:07:09,064 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-16 17:07:09,064 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-16 17:07:09,064 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-16 17:07:09,064 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-16 17:07:09,064 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-16 17:07:09,064 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-16 17:07:09,065 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-16 17:07:09,065 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-16 17:07:09,065 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-16 17:07:09,065 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-16 17:07:09,065 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-16 17:07:09,065 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-16 17:07:09,066 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-16 17:07:09,066 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-16 17:07:09,066 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-16 17:07:09,066 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-16 17:07:09,066 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-16 17:07:09,066 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-16 17:07:09,067 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-16 17:07:09,067 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-16 17:07:09,067 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-16 17:07:09,067 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-16 17:07:09,067 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-16 17:07:09,067 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-16 17:07:09,068 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-16 17:07:09,068 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:07:09,068 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-16 17:07:09,068 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-16 17:07:09,068 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:07:09,068 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-16 17:07:09,069 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-16 17:07:09,069 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-16 17:07:09,069 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-16 17:07:09,069 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-16 17:07:09,069 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-16 17:07:09,069 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-16 17:07:09,070 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-16 17:07:09,070 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-16 17:07:09,070 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-16 17:07:09,070 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-16 17:07:09,070 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-16 17:07:09,070 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-16 17:07:09,071 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-16 17:07:09,071 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-16 17:07:09,071 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-16 17:07:09,071 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-16 17:07:09,071 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-16 17:07:09,071 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-16 17:07:09,071 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-16 17:07:09,072 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-16 17:07:09,072 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-16 17:07:09,072 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-16 17:07:09,072 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-16 17:07:09,072 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-16 17:07:09,072 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-16 17:07:09,073 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-16 17:07:09,073 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-16 17:07:09,073 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-16 17:07:09,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-16 17:07:09,073 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-16 17:07:09,073 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-16 17:07:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-16 17:07:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-16 17:07:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-16 17:07:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-16 17:07:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-16 17:07:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-16 17:07:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-16 17:07:09,075 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-16 17:07:09,075 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-16 17:07:09,075 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-16 17:07:09,075 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-16 17:07:09,075 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-16 17:07:09,075 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-16 17:07:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-16 17:07:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-16 17:07:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-16 17:07:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-16 17:07:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:07:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:07:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:07:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:07:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:07:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:07:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:07:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:07:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:07:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:07:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:07:09,757 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:07:09,757 INFO L283 CfgBuilder]: Removed 20 assume(true) statements. [2019-09-16 17:07:09,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:09 BoogieIcfgContainer [2019-09-16 17:07:09,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:07:09,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:07:09,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:07:09,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:07:09,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:07:08" (1/3) ... [2019-09-16 17:07:09,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc5dc7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:09, skipping insertion in model container [2019-09-16 17:07:09,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:08" (2/3) ... [2019-09-16 17:07:09,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc5dc7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:09, skipping insertion in model container [2019-09-16 17:07:09,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:09" (3/3) ... [2019-09-16 17:07:09,767 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-sorted-2.i [2019-09-16 17:07:09,778 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:07:09,793 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-09-16 17:07:09,811 INFO L252 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-09-16 17:07:09,834 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:07:09,834 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:07:09,834 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:07:09,834 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:07:09,835 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:07:09,835 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:07:09,835 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:07:09,836 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:07:09,854 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states. [2019-09-16 17:07:09,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-16 17:07:09,865 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:09,866 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:09,868 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:09,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:09,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1220089873, now seen corresponding path program 1 times [2019-09-16 17:07:09,877 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:09,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:09,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:09,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:09,946 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:09,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:10,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:10,038 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:10,039 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:07:10,039 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:10,048 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:07:10,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:07:10,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:10,064 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 2 states. [2019-09-16 17:07:10,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:10,081 INFO L93 Difference]: Finished difference Result 61 states and 72 transitions. [2019-09-16 17:07:10,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:07:10,083 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-09-16 17:07:10,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:10,093 INFO L225 Difference]: With dead ends: 61 [2019-09-16 17:07:10,093 INFO L226 Difference]: Without dead ends: 54 [2019-09-16 17:07:10,095 INFO L636 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 [2019-09-16 17:07:10,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-09-16 17:07:10,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2019-09-16 17:07:10,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-09-16 17:07:10,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2019-09-16 17:07:10,130 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 10 [2019-09-16 17:07:10,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:10,131 INFO L475 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2019-09-16 17:07:10,131 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:07:10,131 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2019-09-16 17:07:10,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-16 17:07:10,132 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:10,132 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:10,132 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:10,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:10,133 INFO L82 PathProgramCache]: Analyzing trace with hash -850008500, now seen corresponding path program 1 times [2019-09-16 17:07:10,133 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:10,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:10,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:10,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:10,138 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:10,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:10,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:10,197 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:10,198 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:07:10,198 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:10,201 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:07:10,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:07:10,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:07:10,202 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand 3 states. [2019-09-16 17:07:10,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:10,260 INFO L93 Difference]: Finished difference Result 59 states and 70 transitions. [2019-09-16 17:07:10,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:07:10,261 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-09-16 17:07:10,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:10,262 INFO L225 Difference]: With dead ends: 59 [2019-09-16 17:07:10,263 INFO L226 Difference]: Without dead ends: 59 [2019-09-16 17:07:10,264 INFO L636 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 [2019-09-16 17:07:10,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-09-16 17:07:10,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2019-09-16 17:07:10,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-09-16 17:07:10,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2019-09-16 17:07:10,272 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 11 [2019-09-16 17:07:10,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:10,273 INFO L475 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2019-09-16 17:07:10,273 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:07:10,273 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2019-09-16 17:07:10,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-16 17:07:10,274 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:10,274 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:10,274 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:10,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:10,275 INFO L82 PathProgramCache]: Analyzing trace with hash -797008223, now seen corresponding path program 1 times [2019-09-16 17:07:10,275 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:10,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:10,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:10,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:10,302 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:10,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-16 17:07:10,448 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:10,448 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:07:10,448 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:10,449 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:07:10,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:07:10,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:07:10,450 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand 4 states. [2019-09-16 17:07:10,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:10,607 INFO L93 Difference]: Finished difference Result 90 states and 108 transitions. [2019-09-16 17:07:10,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:07:10,609 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-09-16 17:07:10,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:10,610 INFO L225 Difference]: With dead ends: 90 [2019-09-16 17:07:10,611 INFO L226 Difference]: Without dead ends: 90 [2019-09-16 17:07:10,611 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:07:10,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-09-16 17:07:10,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 56. [2019-09-16 17:07:10,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-09-16 17:07:10,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2019-09-16 17:07:10,624 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 15 [2019-09-16 17:07:10,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:10,627 INFO L475 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions. [2019-09-16 17:07:10,627 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:07:10,627 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions. [2019-09-16 17:07:10,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-09-16 17:07:10,628 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:10,628 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:10,629 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:10,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:10,629 INFO L82 PathProgramCache]: Analyzing trace with hash -184366883, now seen corresponding path program 1 times [2019-09-16 17:07:10,629 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:10,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:10,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:10,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:10,635 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:10,981 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:10,983 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:07:10,984 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:07:10,984 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2019-09-16 17:07:10,990 INFO L207 CegarAbsIntRunner]: [0], [1], [2], [7], [10], [12], [15], [21], [28], [38], [52], [55], [63], [67], [70], [71], [251], [275], [276], [277] [2019-09-16 17:07:11,027 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:07:11,027 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:07:11,093 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:07:11,095 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 19 root evaluator evaluations with a maximum evaluation depth of 0. Performed 19 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 36 variables. [2019-09-16 17:07:11,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:11,100 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:07:11,137 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-09-16 17:07:11,137 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:07:11,139 INFO L420 sIntCurrentIteration]: We unified 20 AI predicates to 20 [2019-09-16 17:07:11,139 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:07:11,140 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:07:11,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2019-09-16 17:07:11,141 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:11,141 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:07:11,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:07:11,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:11,142 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. Second operand 2 states. [2019-09-16 17:07:11,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:11,143 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-09-16 17:07:11,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:07:11,143 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2019-09-16 17:07:11,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:11,143 INFO L225 Difference]: With dead ends: 6 [2019-09-16 17:07:11,143 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:07:11,144 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:11,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:07:11,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:07:11,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:07:11,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:07:11,145 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2019-09-16 17:07:11,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:11,145 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:07:11,145 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:07:11,146 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:07:11,146 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:07:11,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:07:11 BoogieIcfgContainer [2019-09-16 17:07:11,151 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:07:11,154 INFO L168 Benchmark]: Toolchain (without parser) took 2855.32 ms. Allocated memory was 139.5 MB in the beginning and 222.3 MB in the end (delta: 82.8 MB). Free memory was 84.7 MB in the beginning and 132.6 MB in the end (delta: -47.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:11,155 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 139.5 MB. Free memory was 104.2 MB in the beginning and 104.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:07:11,156 INFO L168 Benchmark]: CACSL2BoogieTranslator took 620.34 ms. Allocated memory was 139.5 MB in the beginning and 198.7 MB in the end (delta: 59.2 MB). Free memory was 84.5 MB in the beginning and 162.6 MB in the end (delta: -78.1 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:11,157 INFO L168 Benchmark]: Boogie Preprocessor took 80.88 ms. Allocated memory is still 198.7 MB. Free memory was 162.6 MB in the beginning and 159.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:11,158 INFO L168 Benchmark]: RCFGBuilder took 758.31 ms. Allocated memory is still 198.7 MB. Free memory was 159.6 MB in the beginning and 107.4 MB in the end (delta: 52.2 MB). Peak memory consumption was 52.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:11,159 INFO L168 Benchmark]: TraceAbstraction took 1391.55 ms. Allocated memory was 198.7 MB in the beginning and 222.3 MB in the end (delta: 23.6 MB). Free memory was 106.8 MB in the beginning and 132.6 MB in the end (delta: -25.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:07:11,163 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 139.5 MB. Free memory was 104.2 MB in the beginning and 104.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 620.34 ms. Allocated memory was 139.5 MB in the beginning and 198.7 MB in the end (delta: 59.2 MB). Free memory was 84.5 MB in the beginning and 162.6 MB in the end (delta: -78.1 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 80.88 ms. Allocated memory is still 198.7 MB. Free memory was 162.6 MB in the beginning and 159.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 758.31 ms. Allocated memory is still 198.7 MB. Free memory was 159.6 MB in the beginning and 107.4 MB in the end (delta: 52.2 MB). Peak memory consumption was 52.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1391.55 ms. Allocated memory was 198.7 MB in the beginning and 222.3 MB in the end (delta: 23.6 MB). Free memory was 106.8 MB in the beginning and 132.6 MB in the end (delta: -25.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1025]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1051]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1044]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1018]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1045]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1013]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1052]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 67 locations, 7 error locations. SAFE Result, 1.3s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 178 SDtfs, 161 SDslu, 58 SDs, 0 SdLazy, 53 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9125 AbsIntWeakeningRatio, 1.45 AbsIntAvgWeakeningVarsNumRemoved, 0.3 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 35 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 5813 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...