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-simple/sll2n_insert_unequal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:30:38,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:30:38,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:30:38,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:30:38,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:30:38,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:30:38,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:30:38,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:30:38,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:30:38,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:30:38,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:30:38,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:30:38,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:30:38,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:30:38,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:30:38,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:30:38,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:30:38,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:30:38,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:30:38,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:30:38,930 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:30:38,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:30:38,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:30:38,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:30:38,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:30:38,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:30:38,941 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:30:38,946 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:30:38,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:30:38,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:30:38,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:30:38,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:30:38,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:30:38,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:30:38,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:30:38,954 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:30:38,955 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:30:38,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:30:38,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:30:38,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:30:38,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:30:38,958 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 [2019-10-03 02:30:38,993 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:30:38,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:30:38,994 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:30:38,994 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:30:38,995 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:30:38,996 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:30:38,996 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:30:38,996 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:30:38,997 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:30:38,997 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:30:39,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:30:39,001 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:30:39,001 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:30:39,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:30:39,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:30:39,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:30:39,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:30:39,002 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:30:39,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:30:39,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:30:39,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:30:39,004 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:30:39,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:30:39,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:30:39,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:30:39,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:30:39,005 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:30:39,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:30:39,005 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:30:39,006 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:30:39,082 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:30:39,105 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:30:39,110 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:30:39,112 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:30:39,113 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:30:39,115 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2n_insert_unequal.i [2019-10-03 02:30:39,201 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/929e75eaa/ec88c6bc4a434772a5283b76efacaf6b/FLAGc87dc0c10 [2019-10-03 02:30:39,917 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:30:39,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2n_insert_unequal.i [2019-10-03 02:30:39,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/929e75eaa/ec88c6bc4a434772a5283b76efacaf6b/FLAGc87dc0c10 [2019-10-03 02:30:40,055 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/929e75eaa/ec88c6bc4a434772a5283b76efacaf6b [2019-10-03 02:30:40,066 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:30:40,068 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:30:40,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:30:40,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:30:40,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:30:40,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:30:40" (1/1) ... [2019-10-03 02:30:40,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bd37c52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:40, skipping insertion in model container [2019-10-03 02:30:40,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:30:40" (1/1) ... [2019-10-03 02:30:40,086 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:30:40,149 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:30:40,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:30:40,875 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:30:40,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:30:40,995 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:30:40,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:40 WrapperNode [2019-10-03 02:30:40,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:30:40,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:30:40,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:30:40,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:30:41,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:40" (1/1) ... [2019-10-03 02:30:41,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:40" (1/1) ... [2019-10-03 02:30:41,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:40" (1/1) ... [2019-10-03 02:30:41,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:40" (1/1) ... [2019-10-03 02:30:41,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:40" (1/1) ... [2019-10-03 02:30:41,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:40" (1/1) ... [2019-10-03 02:30:41,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:40" (1/1) ... [2019-10-03 02:30:41,088 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:30:41,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:30:41,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:30:41,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:30:41,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:40" (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 [2019-10-03 02:30:41,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:30:41,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:30:41,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-03 02:30:41,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-03 02:30:41,163 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-03 02:30:41,163 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-03 02:30:41,163 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2019-10-03 02:30:41,164 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2019-10-03 02:30:41,165 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_insert [2019-10-03 02:30:41,165 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:30:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:30:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:30:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-03 02:30:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-03 02:30:41,168 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-03 02:30:41,169 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-03 02:30:41,169 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-03 02:30:41,169 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-03 02:30:41,170 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-03 02:30:41,170 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-03 02:30:41,170 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-03 02:30:41,170 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-03 02:30:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-03 02:30:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-03 02:30:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-03 02:30:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-03 02:30:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-03 02:30:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-03 02:30:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-03 02:30:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-03 02:30:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-03 02:30:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-03 02:30:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-03 02:30:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-03 02:30:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-03 02:30:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-03 02:30:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-03 02:30:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-03 02:30:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-03 02:30:41,178 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-03 02:30:41,178 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-03 02:30:41,178 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-03 02:30:41,178 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-03 02:30:41,178 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-03 02:30:41,179 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-03 02:30:41,179 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-03 02:30:41,179 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-03 02:30:41,179 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-03 02:30:41,179 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-03 02:30:41,179 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-03 02:30:41,179 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-03 02:30:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-03 02:30:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-03 02:30:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-03 02:30:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-03 02:30:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-03 02:30:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-03 02:30:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-03 02:30:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-03 02:30:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-03 02:30:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-03 02:30:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-03 02:30:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-03 02:30:41,182 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-03 02:30:41,182 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:30:41,182 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-03 02:30:41,183 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-03 02:30:41,184 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:30:41,184 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-03 02:30:41,184 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-03 02:30:41,184 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-03 02:30:41,185 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-03 02:30:41,185 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-03 02:30:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-03 02:30:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-03 02:30:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-03 02:30:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-03 02:30:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-03 02:30:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-03 02:30:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-03 02:30:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-03 02:30:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-03 02:30:41,189 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-03 02:30:41,189 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-03 02:30:41,189 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-03 02:30:41,190 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-03 02:30:41,191 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-03 02:30:41,192 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-03 02:30:41,192 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-03 02:30:41,192 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-03 02:30:41,192 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-03 02:30:41,192 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-03 02:30:41,193 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-03 02:30:41,193 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-03 02:30:41,193 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-03 02:30:41,193 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-03 02:30:41,193 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-03 02:30:41,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-03 02:30:41,194 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-03 02:30:41,194 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-03 02:30:41,194 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-03 02:30:41,194 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-03 02:30:41,194 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-03 02:30:41,194 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-03 02:30:41,194 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-03 02:30:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-03 02:30:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-03 02:30:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-03 02:30:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-03 02:30:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-03 02:30:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-03 02:30:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-03 02:30:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-03 02:30:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-03 02:30:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-03 02:30:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-03 02:30:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-03 02:30:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-03 02:30:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-03 02:30:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:30:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:30:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:30:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2019-10-03 02:30:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2019-10-03 02:30:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:30:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:30:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure sll_insert [2019-10-03 02:30:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:30:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:30:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-03 02:30:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:30:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:30:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:30:41,637 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-03 02:30:41,937 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:30:41,937 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:30:41,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:30:41 BoogieIcfgContainer [2019-10-03 02:30:41,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:30:41,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:30:41,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:30:41,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:30:41,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:30:40" (1/3) ... [2019-10-03 02:30:41,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f5feaa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:30:41, skipping insertion in model container [2019-10-03 02:30:41,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:40" (2/3) ... [2019-10-03 02:30:41,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f5feaa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:30:41, skipping insertion in model container [2019-10-03 02:30:41,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:30:41" (3/3) ... [2019-10-03 02:30:41,951 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2n_insert_unequal.i [2019-10-03 02:30:41,965 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:30:41,976 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:30:42,000 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:30:42,038 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:30:42,038 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:30:42,038 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:30:42,038 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:30:42,039 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:30:42,039 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:30:42,039 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:30:42,039 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:30:42,061 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2019-10-03 02:30:42,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-03 02:30:42,077 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:30:42,079 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:30:42,082 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:30:42,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:30:42,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1925718240, now seen corresponding path program 1 times [2019-10-03 02:30:42,094 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:30:42,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:42,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:30:42,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:42,184 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:30:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:30:42,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:30:42,335 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:30:42,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:30:42,335 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:30:42,342 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:30:42,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:30:42,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:30:42,365 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 2 states. [2019-10-03 02:30:42,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:30:42,394 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2019-10-03 02:30:42,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:30:42,396 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 31 [2019-10-03 02:30:42,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:30:42,409 INFO L225 Difference]: With dead ends: 53 [2019-10-03 02:30:42,409 INFO L226 Difference]: Without dead ends: 40 [2019-10-03 02:30:42,412 INFO L640 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 [2019-10-03 02:30:42,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-10-03 02:30:42,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-10-03 02:30:42,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-10-03 02:30:42,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2019-10-03 02:30:42,466 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 31 [2019-10-03 02:30:42,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:30:42,467 INFO L475 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2019-10-03 02:30:42,467 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:30:42,467 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2019-10-03 02:30:42,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-03 02:30:42,470 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:30:42,470 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:30:42,471 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:30:42,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:30:42,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1001067800, now seen corresponding path program 1 times [2019-10-03 02:30:42,472 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:30:42,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:42,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:30:42,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:42,478 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:30:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:30:42,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:30:42,668 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:30:42,668 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:30:42,668 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:30:42,670 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:30:42,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:30:42,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:30:42,672 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 3 states. [2019-10-03 02:30:42,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:30:42,703 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2019-10-03 02:30:42,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:30:42,731 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2019-10-03 02:30:42,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:30:42,735 INFO L225 Difference]: With dead ends: 45 [2019-10-03 02:30:42,736 INFO L226 Difference]: Without dead ends: 45 [2019-10-03 02:30:42,737 INFO L640 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 [2019-10-03 02:30:42,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-10-03 02:30:42,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2019-10-03 02:30:42,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-10-03 02:30:42,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2019-10-03 02:30:42,758 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 31 [2019-10-03 02:30:42,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:30:42,762 INFO L475 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2019-10-03 02:30:42,762 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:30:42,762 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2019-10-03 02:30:42,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-03 02:30:42,764 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:30:42,765 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:30:42,765 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:30:42,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:30:42,767 INFO L82 PathProgramCache]: Analyzing trace with hash 191721174, now seen corresponding path program 1 times [2019-10-03 02:30:42,768 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:30:42,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:42,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:30:42,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:42,780 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:30:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:30:43,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:30:43,088 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:30:43,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-03 02:30:43,089 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:30:43,089 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-03 02:30:43,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-03 02:30:43,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:30:43,091 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand 9 states. [2019-10-03 02:30:43,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:30:43,278 INFO L93 Difference]: Finished difference Result 52 states and 62 transitions. [2019-10-03 02:30:43,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:30:43,279 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2019-10-03 02:30:43,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:30:43,281 INFO L225 Difference]: With dead ends: 52 [2019-10-03 02:30:43,281 INFO L226 Difference]: Without dead ends: 49 [2019-10-03 02:30:43,282 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-03 02:30:43,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-10-03 02:30:43,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2019-10-03 02:30:43,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-03 02:30:43,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2019-10-03 02:30:43,290 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 31 [2019-10-03 02:30:43,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:30:43,290 INFO L475 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2019-10-03 02:30:43,291 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-03 02:30:43,291 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2019-10-03 02:30:43,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-10-03 02:30:43,293 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:30:43,293 INFO L411 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, 1, 1, 1] [2019-10-03 02:30:43,293 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:30:43,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:30:43,294 INFO L82 PathProgramCache]: Analyzing trace with hash -833744621, now seen corresponding path program 1 times [2019-10-03 02:30:43,294 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:30:43,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:43,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:30:43,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:43,299 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:30:43,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:30:43,511 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-03 02:30:43,511 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:30:43,512 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:30:43,513 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 41 with the following transitions: [2019-10-03 02:30:43,516 INFO L207 CegarAbsIntRunner]: [21], [27], [29], [31], [33], [37], [38], [39], [45], [47], [48], [49], [50], [51], [53], [55], [64], [67], [103], [108], [110], [117], [127], [129], [130], [134], [135], [138], [139], [140], [141], [144], [145], [146], [147], [148] [2019-10-03 02:30:43,564 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:30:43,565 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:30:43,666 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:30:43,669 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 21 root evaluator evaluations with a maximum evaluation depth of 0. Performed 21 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 34 variables. [2019-10-03 02:30:43,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:30:43,676 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:30:43,772 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-03 02:30:43,774 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:30:43,777 INFO L420 sIntCurrentIteration]: We unified 39 AI predicates to 39 [2019-10-03 02:30:43,781 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:30:43,782 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:30:43,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [10] total 10 [2019-10-03 02:30:43,783 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:30:43,783 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:30:43,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:30:43,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:30:43,786 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. Second operand 2 states. [2019-10-03 02:30:43,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:30:43,788 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-10-03 02:30:43,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:30:43,788 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 40 [2019-10-03 02:30:43,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:30:43,789 INFO L225 Difference]: With dead ends: 6 [2019-10-03 02:30:43,789 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:30:43,790 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:30:43,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:30:43,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:30:43,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:30:43,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:30:43,793 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2019-10-03 02:30:43,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:30:43,795 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:30:43,795 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:30:43,795 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:30:43,795 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:30:43,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:30:43 BoogieIcfgContainer [2019-10-03 02:30:43,804 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:30:43,809 INFO L168 Benchmark]: Toolchain (without parser) took 3738.07 ms. Allocated memory was 130.5 MB in the beginning and 220.2 MB in the end (delta: 89.7 MB). Free memory was 84.8 MB in the beginning and 129.3 MB in the end (delta: -44.5 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:30:43,811 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 130.5 MB. Free memory is still 104.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 02:30:43,813 INFO L168 Benchmark]: CACSL2BoogieTranslator took 928.30 ms. Allocated memory was 130.5 MB in the beginning and 200.8 MB in the end (delta: 70.3 MB). Free memory was 84.8 MB in the beginning and 160.8 MB in the end (delta: -76.0 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:30:43,815 INFO L168 Benchmark]: Boogie Preprocessor took 90.69 ms. Allocated memory is still 200.8 MB. Free memory was 160.8 MB in the beginning and 157.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:30:43,816 INFO L168 Benchmark]: RCFGBuilder took 851.13 ms. Allocated memory is still 200.8 MB. Free memory was 157.9 MB in the beginning and 106.1 MB in the end (delta: 51.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:30:43,818 INFO L168 Benchmark]: TraceAbstraction took 1862.62 ms. Allocated memory was 200.8 MB in the beginning and 220.2 MB in the end (delta: 19.4 MB). Free memory was 106.1 MB in the beginning and 129.3 MB in the end (delta: -23.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 02:30:43,833 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 130.5 MB. Free memory is still 104.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 928.30 ms. Allocated memory was 130.5 MB in the beginning and 200.8 MB in the end (delta: 70.3 MB). Free memory was 84.8 MB in the beginning and 160.8 MB in the end (delta: -76.0 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.69 ms. Allocated memory is still 200.8 MB. Free memory was 160.8 MB in the beginning and 157.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 851.13 ms. Allocated memory is still 200.8 MB. Free memory was 157.9 MB in the beginning and 106.1 MB in the end (delta: 51.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1862.62 ms. Allocated memory was 200.8 MB in the beginning and 220.2 MB in the end (delta: 19.4 MB). Free memory was 106.1 MB in the beginning and 129.3 MB in the end (delta: -23.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 640]: 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 10 procedures, 60 locations, 1 error locations. SAFE Result, 1.7s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 156 SDtfs, 27 SDslu, 275 SDs, 0 SdLazy, 69 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred 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, 0.9743589743589743 AbsIntWeakeningRatio, 1.7179487179487178 AbsIntAvgWeakeningVarsNumRemoved, 0.15384615384615385 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 6903 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 5/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...