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/list-ext3-properties/sll_nondet_insert-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:48:31,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:48:31,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:48:31,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:48:31,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:48:31,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:48:31,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:48:31,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:48:31,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:48:31,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:48:31,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:48:31,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:48:31,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:48:31,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:48:31,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:48:31,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:48:31,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:48:31,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:48:31,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:48:31,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:48:31,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:48:31,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:48:31,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:48:31,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:48:31,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:48:31,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:48:31,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:48:31,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:48:31,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:48:31,233 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:48:31,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:48:31,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:48:31,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:48:31,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:48:31,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:48:31,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:48:31,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:48:31,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:48:31,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:48:31,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:48:31,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:48:31,246 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 01:48:31,260 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:48:31,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:48:31,261 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:48:31,261 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:48:31,262 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:48:31,262 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:48:31,262 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:48:31,263 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:48:31,263 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:48:31,263 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:48:31,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:48:31,264 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:48:31,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:48:31,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:48:31,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:48:31,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:48:31,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:48:31,265 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:48:31,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:48:31,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:48:31,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:48:31,266 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:48:31,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:48:31,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:48:31,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:48:31,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:48:31,267 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:48:31,268 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:48:31,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:48:31,268 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:48:31,296 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:48:31,308 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:48:31,311 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:48:31,313 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:48:31,313 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:48:31,314 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext3-properties/sll_nondet_insert-2.i [2019-09-10 01:48:31,373 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/703ee3454/3ec8a31a81ba4ca586abe4971e66685d/FLAG6040239dc [2019-09-10 01:48:31,868 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:48:31,869 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext3-properties/sll_nondet_insert-2.i [2019-09-10 01:48:31,882 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/703ee3454/3ec8a31a81ba4ca586abe4971e66685d/FLAG6040239dc [2019-09-10 01:48:32,211 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/703ee3454/3ec8a31a81ba4ca586abe4971e66685d [2019-09-10 01:48:32,220 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:48:32,221 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:48:32,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:48:32,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:48:32,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:48:32,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:48:32" (1/1) ... [2019-09-10 01:48:32,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cea3d4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:32, skipping insertion in model container [2019-09-10 01:48:32,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:48:32" (1/1) ... [2019-09-10 01:48:32,238 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:48:32,294 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:48:32,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:48:32,737 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:48:32,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:48:32,865 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:48:32,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:32 WrapperNode [2019-09-10 01:48:32,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:48:32,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:48:32,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:48:32,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:48:32,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:32" (1/1) ... [2019-09-10 01:48:32,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:32" (1/1) ... [2019-09-10 01:48:32,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:32" (1/1) ... [2019-09-10 01:48:32,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:32" (1/1) ... [2019-09-10 01:48:32,925 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:32" (1/1) ... [2019-09-10 01:48:32,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:32" (1/1) ... [2019-09-10 01:48:32,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:32" (1/1) ... [2019-09-10 01:48:32,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:48:32,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:48:32,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:48:32,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:48:32,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:32" (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 01:48:33,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:48:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:48:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-10 01:48:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-10 01:48:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-09-10 01:48:33,011 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2019-09-10 01:48:33,011 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_length [2019-09-10 01:48:33,012 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2019-09-10 01:48:33,012 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_insert [2019-09-10 01:48:33,012 INFO L138 BoogieDeclarations]: Found implementation of procedure _get_nondet_int [2019-09-10 01:48:33,013 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:48:33,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:48:33,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 01:48:33,014 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-10 01:48:33,014 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-10 01:48:33,015 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-10 01:48:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-10 01:48:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-10 01:48:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-10 01:48:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-10 01:48:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-10 01:48:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-10 01:48:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-10 01:48:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-10 01:48:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-10 01:48:33,018 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-10 01:48:33,018 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-10 01:48:33,018 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-10 01:48:33,019 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-10 01:48:33,019 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-10 01:48:33,019 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-10 01:48:33,019 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-10 01:48:33,019 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-10 01:48:33,019 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-10 01:48:33,019 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-10 01:48:33,020 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-10 01:48:33,020 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-10 01:48:33,020 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-10 01:48:33,020 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-10 01:48:33,020 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-10 01:48:33,020 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-10 01:48:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-10 01:48:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-10 01:48:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-10 01:48:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-10 01:48:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-10 01:48:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-10 01:48:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-10 01:48:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-10 01:48:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-10 01:48:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-10 01:48:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-10 01:48:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-10 01:48:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-10 01:48:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-10 01:48:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-10 01:48:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-10 01:48:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-10 01:48:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-10 01:48:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-10 01:48:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-10 01:48:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-10 01:48:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-10 01:48:33,025 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-10 01:48:33,025 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-10 01:48:33,025 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 01:48:33,025 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 01:48:33,026 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-10 01:48:33,026 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 01:48:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-10 01:48:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-10 01:48:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-10 01:48:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-10 01:48:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-10 01:48:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-10 01:48:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-10 01:48:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-10 01:48:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-10 01:48:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 01:48:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-10 01:48:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-10 01:48:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-10 01:48:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-10 01:48:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-10 01:48:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-10 01:48:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-10 01:48:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-10 01:48:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-10 01:48:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-10 01:48:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-10 01:48:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-10 01:48:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-10 01:48:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-10 01:48:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-10 01:48:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-10 01:48:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-10 01:48:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-10 01:48:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-10 01:48:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-10 01:48:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-10 01:48:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-10 01:48:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-10 01:48:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-10 01:48:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-10 01:48:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-10 01:48:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-10 01:48:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-10 01:48:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-10 01:48:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-10 01:48:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-10 01:48:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-10 01:48:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-10 01:48:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-10 01:48:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-10 01:48:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-10 01:48:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-10 01:48:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-10 01:48:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-10 01:48:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-09-10 01:48:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2019-09-10 01:48:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 01:48:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 01:48:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure sll_length [2019-09-10 01:48:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 01:48:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2019-09-10 01:48:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:48:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure sll_insert [2019-09-10 01:48:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure _get_nondet_int [2019-09-10 01:48:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:48:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 01:48:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-10 01:48:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:48:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:48:33,394 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-09-10 01:48:33,652 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:48:33,652 INFO L283 CfgBuilder]: Removed 6 assume(true) statements. [2019-09-10 01:48:33,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:48:33 BoogieIcfgContainer [2019-09-10 01:48:33,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:48:33,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:48:33,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:48:33,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:48:33,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:48:32" (1/3) ... [2019-09-10 01:48:33,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1917cde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:48:33, skipping insertion in model container [2019-09-10 01:48:33,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:32" (2/3) ... [2019-09-10 01:48:33,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1917cde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:48:33, skipping insertion in model container [2019-09-10 01:48:33,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:48:33" (3/3) ... [2019-09-10 01:48:33,675 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_nondet_insert-2.i [2019-09-10 01:48:33,684 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:48:33,693 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:48:33,710 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:48:33,731 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:48:33,731 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:48:33,732 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:48:33,732 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:48:33,732 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:48:33,732 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:48:33,732 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:48:33,732 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:48:33,748 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2019-09-10 01:48:33,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-09-10 01:48:33,760 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:48:33,761 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2019-09-10 01:48:33,763 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:48:33,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:48:33,770 INFO L82 PathProgramCache]: Analyzing trace with hash -87837704, now seen corresponding path program 1 times [2019-09-10 01:48:33,772 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:48:33,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:48:33,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:48:33,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:48:33,823 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:48:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:48:33,941 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 01:48:33,945 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:48:33,947 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 01:48:33,948 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 38 with the following transitions: [2019-09-10 01:48:33,951 INFO L207 CegarAbsIntRunner]: [21], [32], [34], [35], [36], [56], [58], [59], [60], [61], [62], [80], [82], [83], [85], [87], [89], [96], [106], [108], [111], [116], [156], [157], [158], [159], [160], [161], [166], [167], [172], [173], [174] [2019-09-10 01:48:33,996 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 01:48:33,996 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 01:48:34,096 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 01:48:34,097 INFO L272 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Performed 30 root evaluator evaluations with a maximum evaluation depth of 0. Performed 30 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 26 variables. [2019-09-10 01:48:34,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:48:34,101 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 01:48:34,150 INFO L227 lantSequenceWeakener]: Weakened 6 states. On average, predicates are now at 92.59% of their original sizes. [2019-09-10 01:48:34,151 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 01:48:34,165 INFO L420 sIntCurrentIteration]: We unified 36 AI predicates to 36 [2019-09-10 01:48:34,165 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 01:48:34,166 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 01:48:34,166 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [2] total 4 [2019-09-10 01:48:34,166 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:48:34,172 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:48:34,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:48:34,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:48:34,178 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 4 states. [2019-09-10 01:48:34,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:48:34,295 INFO L93 Difference]: Finished difference Result 78 states and 92 transitions. [2019-09-10 01:48:34,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 01:48:34,296 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2019-09-10 01:48:34,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:48:34,307 INFO L225 Difference]: With dead ends: 78 [2019-09-10 01:48:34,307 INFO L226 Difference]: Without dead ends: 64 [2019-09-10 01:48:34,309 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 01:48:34,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-09-10 01:48:34,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 58. [2019-09-10 01:48:34,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-09-10 01:48:34,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2019-09-10 01:48:34,386 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 67 transitions. Word has length 37 [2019-09-10 01:48:34,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:48:34,386 INFO L475 AbstractCegarLoop]: Abstraction has 58 states and 67 transitions. [2019-09-10 01:48:34,387 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:48:34,387 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 67 transitions. [2019-09-10 01:48:34,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-09-10 01:48:34,389 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:48:34,390 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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 01:48:34,390 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:48:34,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:48:34,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1536900415, now seen corresponding path program 1 times [2019-09-10 01:48:34,392 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:48:34,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:48:34,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:48:34,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:48:34,395 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:48:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:48:34,609 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-10 01:48:34,610 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:48:34,610 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 01:48:34,610 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 43 with the following transitions: [2019-09-10 01:48:34,611 INFO L207 CegarAbsIntRunner]: [21], [28], [34], [35], [36], [41], [44], [58], [59], [60], [61], [62], [67], [70], [76], [82], [83], [85], [87], [89], [96], [106], [108], [111], [116], [156], [157], [158], [159], [160], [161], [166], [167], [172], [173], [174] [2019-09-10 01:48:34,615 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 01:48:34,616 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 01:48:34,627 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 01:48:34,627 INFO L272 AbstractInterpreter]: Visited 14 different actions 14 times. Never merged. Never widened. Performed 38 root evaluator evaluations with a maximum evaluation depth of 3. Performed 38 inverse root evaluator evaluations with a maximum inverse evaluation depth of 2. Never found a fixpoint. Largest state had 26 variables. [2019-09-10 01:48:34,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:48:34,627 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 01:48:34,649 INFO L227 lantSequenceWeakener]: Weakened 12 states. On average, predicates are now at 89.35% of their original sizes. [2019-09-10 01:48:34,650 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 01:48:34,679 INFO L420 sIntCurrentIteration]: We unified 41 AI predicates to 41 [2019-09-10 01:48:34,679 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 01:48:34,679 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 01:48:34,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-09-10 01:48:34,680 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:48:34,681 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 01:48:34,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 01:48:34,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 01:48:34,682 INFO L87 Difference]: Start difference. First operand 58 states and 67 transitions. Second operand 7 states. [2019-09-10 01:48:34,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:48:34,803 INFO L93 Difference]: Finished difference Result 65 states and 75 transitions. [2019-09-10 01:48:34,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 01:48:34,803 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2019-09-10 01:48:34,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:48:34,805 INFO L225 Difference]: With dead ends: 65 [2019-09-10 01:48:34,805 INFO L226 Difference]: Without dead ends: 61 [2019-09-10 01:48:34,806 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-09-10 01:48:34,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-09-10 01:48:34,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2019-09-10 01:48:34,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-09-10 01:48:34,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 71 transitions. [2019-09-10 01:48:34,815 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 71 transitions. Word has length 42 [2019-09-10 01:48:34,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:48:34,815 INFO L475 AbstractCegarLoop]: Abstraction has 61 states and 71 transitions. [2019-09-10 01:48:34,815 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 01:48:34,816 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 71 transitions. [2019-09-10 01:48:34,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-09-10 01:48:34,817 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:48:34,817 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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] [2019-09-10 01:48:34,818 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:48:34,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:48:34,818 INFO L82 PathProgramCache]: Analyzing trace with hash 860400722, now seen corresponding path program 1 times [2019-09-10 01:48:34,818 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:48:34,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:48:34,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:48:34,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:48:34,820 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:48:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:48:35,137 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-10 01:48:35,138 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:48:35,138 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 01:48:35,138 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:48:35,139 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 01:48:35,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 01:48:35,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-09-10 01:48:35,143 INFO L87 Difference]: Start difference. First operand 61 states and 71 transitions. Second operand 10 states. [2019-09-10 01:48:35,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:48:35,440 INFO L93 Difference]: Finished difference Result 92 states and 116 transitions. [2019-09-10 01:48:35,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 01:48:35,441 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 45 [2019-09-10 01:48:35,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:48:35,444 INFO L225 Difference]: With dead ends: 92 [2019-09-10 01:48:35,444 INFO L226 Difference]: Without dead ends: 92 [2019-09-10 01:48:35,445 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2019-09-10 01:48:35,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-09-10 01:48:35,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 74. [2019-09-10 01:48:35,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-09-10 01:48:35,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 89 transitions. [2019-09-10 01:48:35,467 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 89 transitions. Word has length 45 [2019-09-10 01:48:35,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:48:35,468 INFO L475 AbstractCegarLoop]: Abstraction has 74 states and 89 transitions. [2019-09-10 01:48:35,468 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 01:48:35,468 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 89 transitions. [2019-09-10 01:48:35,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-09-10 01:48:35,471 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:48:35,471 INFO L399 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 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] [2019-09-10 01:48:35,473 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:48:35,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:48:35,474 INFO L82 PathProgramCache]: Analyzing trace with hash -727947180, now seen corresponding path program 1 times [2019-09-10 01:48:35,475 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:48:35,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:48:35,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:48:35,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:48:35,477 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:48:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:48:35,630 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-10 01:48:35,631 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:48:35,631 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 01:48:35,631 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 46 with the following transitions: [2019-09-10 01:48:35,632 INFO L207 CegarAbsIntRunner]: [21], [28], [34], [35], [36], [41], [44], [58], [59], [60], [61], [62], [67], [70], [72], [76], [78], [82], [83], [85], [87], [89], [96], [106], [108], [111], [116], [156], [157], [158], [159], [160], [161], [166], [167], [172], [173], [174] [2019-09-10 01:48:35,636 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 01:48:35,637 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 01:48:35,730 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 01:48:35,732 INFO L272 AbstractInterpreter]: Visited 16 different actions 90 times. Merged at 8 different actions 56 times. Widened at 1 different actions 2 times. Performed 235 root evaluator evaluations with a maximum evaluation depth of 3. Performed 235 inverse root evaluator evaluations with a maximum inverse evaluation depth of 2. Found 12 fixpoints after 3 different actions. Largest state had 26 variables. [2019-09-10 01:48:35,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:48:35,732 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 01:48:35,767 INFO L227 lantSequenceWeakener]: Weakened 15 states. On average, predicates are now at 86.96% of their original sizes. [2019-09-10 01:48:35,767 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 01:48:35,790 INFO L420 sIntCurrentIteration]: We unified 44 AI predicates to 44 [2019-09-10 01:48:35,791 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 01:48:35,791 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 01:48:35,792 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2019-09-10 01:48:35,792 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:48:35,793 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 01:48:35,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 01:48:35,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 01:48:35,794 INFO L87 Difference]: Start difference. First operand 74 states and 89 transitions. Second operand 7 states. [2019-09-10 01:48:35,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:48:35,861 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2019-09-10 01:48:35,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 01:48:35,862 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2019-09-10 01:48:35,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:48:35,862 INFO L225 Difference]: With dead ends: 17 [2019-09-10 01:48:35,862 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 01:48:35,863 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-09-10 01:48:35,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 01:48:35,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 01:48:35,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 01:48:35,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 01:48:35,863 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2019-09-10 01:48:35,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:48:35,864 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 01:48:35,864 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 01:48:35,864 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 01:48:35,864 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 01:48:35,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:48:35 BoogieIcfgContainer [2019-09-10 01:48:35,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:48:35,871 INFO L168 Benchmark]: Toolchain (without parser) took 3649.39 ms. Allocated memory was 134.7 MB in the beginning and 256.4 MB in the end (delta: 121.6 MB). Free memory was 89.6 MB in the beginning and 214.3 MB in the end (delta: -124.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 01:48:35,872 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 134.7 MB. Free memory was 109.3 MB in the beginning and 109.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:48:35,874 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.48 ms. Allocated memory was 134.7 MB in the beginning and 201.3 MB in the end (delta: 66.6 MB). Free memory was 89.2 MB in the beginning and 164.0 MB in the end (delta: -74.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2019-09-10 01:48:35,874 INFO L168 Benchmark]: Boogie Preprocessor took 76.41 ms. Allocated memory is still 201.3 MB. Free memory was 164.0 MB in the beginning and 161.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2019-09-10 01:48:35,875 INFO L168 Benchmark]: RCFGBuilder took 711.24 ms. Allocated memory is still 201.3 MB. Free memory was 161.0 MB in the beginning and 112.8 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:48:35,876 INFO L168 Benchmark]: TraceAbstraction took 2214.15 ms. Allocated memory was 201.3 MB in the beginning and 256.4 MB in the end (delta: 55.1 MB). Free memory was 112.2 MB in the beginning and 214.3 MB in the end (delta: -102.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 01:48:35,880 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 134.7 MB. Free memory was 109.3 MB in the beginning and 109.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 643.48 ms. Allocated memory was 134.7 MB in the beginning and 201.3 MB in the end (delta: 66.6 MB). Free memory was 89.2 MB in the beginning and 164.0 MB in the end (delta: -74.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 76.41 ms. Allocated memory is still 201.3 MB. Free memory was 164.0 MB in the beginning and 161.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 711.24 ms. Allocated memory is still 201.3 MB. Free memory was 161.0 MB in the beginning and 112.8 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2214.15 ms. Allocated memory was 201.3 MB in the beginning and 256.4 MB in the end (delta: 55.1 MB). Free memory was 112.2 MB in the beginning and 214.3 MB in the end (delta: -102.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 630]: 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 11 procedures, 72 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 187 SDtfs, 97 SDslu, 767 SDs, 0 SdLazy, 142 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9554637281910008 AbsIntWeakeningRatio, 1.0991735537190082 AbsIntAvgWeakeningVarsNumRemoved, 1.3801652892561984 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 165 ConstructedInterpolants, 0 QuantifiedInterpolants, 14119 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 20/38 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...