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_update_all.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:06,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:06,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:06,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:06,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:06,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:06,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:06,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:06,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:06,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:06,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:06,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:06,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:06,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:06,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:06,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:06,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:06,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:06,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:06,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:06,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:06,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:06,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:06,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:06,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:06,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:06,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:06,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:06,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:06,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:06,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:06,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:06,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:06,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:06,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:06,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:06,101 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:06,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:06,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:06,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:06,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:06,104 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 [2019-09-20 13:29:06,125 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:06,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:06,126 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:06,126 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:06,127 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:06,127 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:06,127 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:06,127 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:06,128 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:06,128 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:06,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:06,129 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:06,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:06,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:06,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:06,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:06,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:06,130 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:06,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:06,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:06,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:06,131 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:06,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:06,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:06,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:06,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:06,132 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:06,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:06,132 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:06,132 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:06,162 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:06,179 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:06,183 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:06,185 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:06,185 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:06,186 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2n_update_all.i [2019-09-20 13:29:06,262 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb58d62dc/f260a188d2e14146bde579a81bd0d32e/FLAGbad0dab3a [2019-09-20 13:29:06,740 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:06,740 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2n_update_all.i [2019-09-20 13:29:06,757 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb58d62dc/f260a188d2e14146bde579a81bd0d32e/FLAGbad0dab3a [2019-09-20 13:29:07,096 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb58d62dc/f260a188d2e14146bde579a81bd0d32e [2019-09-20 13:29:07,107 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:07,108 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:07,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:07,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:07,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:07,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:07" (1/1) ... [2019-09-20 13:29:07,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7393497c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:07, skipping insertion in model container [2019-09-20 13:29:07,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:07" (1/1) ... [2019-09-20 13:29:07,127 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:07,173 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:07,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:07,726 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:07,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:07,864 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:07,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:07 WrapperNode [2019-09-20 13:29:07,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:07,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:07,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:07,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:07,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:07" (1/1) ... [2019-09-20 13:29:07,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:07" (1/1) ... [2019-09-20 13:29:07,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:07" (1/1) ... [2019-09-20 13:29:07,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:07" (1/1) ... [2019-09-20 13:29:07,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:07" (1/1) ... [2019-09-20 13:29:07,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:07" (1/1) ... [2019-09-20 13:29:07,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:07" (1/1) ... [2019-09-20 13:29:07,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:07,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:07,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:07,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:07,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:07" (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 [2019-09-20 13:29:08,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-20 13:29:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-20 13:29:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-09-20 13:29:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-09-20 13:29:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2019-09-20 13:29:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2019-09-20 13:29:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_get_data_at [2019-09-20 13:29:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_update_at [2019-09-20 13:29:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:08,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:08,018 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-20 13:29:08,018 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-20 13:29:08,018 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-20 13:29:08,018 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-20 13:29:08,018 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-20 13:29:08,019 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-20 13:29:08,019 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-20 13:29:08,019 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-20 13:29:08,019 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-20 13:29:08,019 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-20 13:29:08,020 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-20 13:29:08,020 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-20 13:29:08,020 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-20 13:29:08,020 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-20 13:29:08,020 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-20 13:29:08,020 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-20 13:29:08,021 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-20 13:29:08,021 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-20 13:29:08,021 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-20 13:29:08,021 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-20 13:29:08,021 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-20 13:29:08,022 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-20 13:29:08,022 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-20 13:29:08,022 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-20 13:29:08,022 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-20 13:29:08,022 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-20 13:29:08,022 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-20 13:29:08,023 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-20 13:29:08,023 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-20 13:29:08,023 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-20 13:29:08,023 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-20 13:29:08,023 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-20 13:29:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-20 13:29:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-20 13:29:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-20 13:29:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-20 13:29:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-20 13:29:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-20 13:29:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-20 13:29:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-20 13:29:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-20 13:29:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-20 13:29:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-20 13:29:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-20 13:29:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-20 13:29:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-20 13:29:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-20 13:29:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-20 13:29:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-20 13:29:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-20 13:29:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-20 13:29:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-20 13:29:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-20 13:29:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-20 13:29:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:08,028 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-20 13:29:08,028 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-20 13:29:08,028 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-20 13:29:08,028 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-20 13:29:08,028 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-20 13:29:08,028 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-20 13:29:08,029 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-20 13:29:08,029 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-20 13:29:08,029 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-20 13:29:08,029 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-20 13:29:08,029 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-20 13:29:08,029 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-20 13:29:08,030 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-20 13:29:08,030 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-20 13:29:08,030 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-20 13:29:08,030 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-20 13:29:08,030 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-20 13:29:08,030 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-20 13:29:08,030 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-20 13:29:08,031 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-20 13:29:08,031 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-20 13:29:08,031 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-20 13:29:08,031 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-20 13:29:08,031 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-20 13:29:08,031 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-20 13:29:08,032 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-20 13:29:08,032 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-20 13:29:08,032 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-20 13:29:08,032 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-20 13:29:08,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-20 13:29:08,032 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-20 13:29:08,033 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-20 13:29:08,033 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-20 13:29:08,033 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-20 13:29:08,033 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-20 13:29:08,033 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-20 13:29:08,033 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-20 13:29:08,033 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-20 13:29:08,034 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-20 13:29:08,034 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-20 13:29:08,034 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-20 13:29:08,034 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-20 13:29:08,034 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-20 13:29:08,034 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-20 13:29:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-20 13:29:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-20 13:29:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-20 13:29:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-20 13:29:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-20 13:29:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-09-20 13:29:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-09-20 13:29:08,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:08,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:08,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:08,036 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2019-09-20 13:29:08,036 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2019-09-20 13:29:08,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:08,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure sll_get_data_at [2019-09-20 13:29:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure sll_update_at [2019-09-20 13:29:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:08,504 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-09-20 13:29:08,710 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:08,711 INFO L283 CfgBuilder]: Removed 6 assume(true) statements. [2019-09-20 13:29:08,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:08 BoogieIcfgContainer [2019-09-20 13:29:08,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:08,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:08,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:08,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:08,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:07" (1/3) ... [2019-09-20 13:29:08,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8a9d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:08, skipping insertion in model container [2019-09-20 13:29:08,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:07" (2/3) ... [2019-09-20 13:29:08,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8a9d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:08, skipping insertion in model container [2019-09-20 13:29:08,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:08" (3/3) ... [2019-09-20 13:29:08,740 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2n_update_all.i [2019-09-20 13:29:08,765 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:08,783 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:08,803 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:08,830 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:08,830 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:08,830 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:08,830 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:08,830 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:08,831 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:08,831 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:08,831 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:08,847 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2019-09-20 13:29:08,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-09-20 13:29:08,858 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:08,859 INFO L407 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] [2019-09-20 13:29:08,861 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:08,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:08,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1559034541, now seen corresponding path program 1 times [2019-09-20 13:29:08,869 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:08,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:08,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:08,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:08,940 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:09,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:09,038 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:09,038 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:09,039 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:09,044 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:09,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:09,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:09,058 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2019-09-20 13:29:09,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:09,075 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2019-09-20 13:29:09,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:09,076 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2019-09-20 13:29:09,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:09,085 INFO L225 Difference]: With dead ends: 55 [2019-09-20 13:29:09,086 INFO L226 Difference]: Without dead ends: 42 [2019-09-20 13:29:09,087 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:09,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-09-20 13:29:09,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-09-20 13:29:09,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-09-20 13:29:09,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2019-09-20 13:29:09,125 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 25 [2019-09-20 13:29:09,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:09,126 INFO L475 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2019-09-20 13:29:09,126 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:09,126 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2019-09-20 13:29:09,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-09-20 13:29:09,127 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:09,127 INFO L407 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] [2019-09-20 13:29:09,128 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:09,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:09,128 INFO L82 PathProgramCache]: Analyzing trace with hash -404189262, now seen corresponding path program 1 times [2019-09-20 13:29:09,129 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:09,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:09,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:09,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:09,134 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:09,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:09,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:09,236 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:09,236 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:29:09,237 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:09,238 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:29:09,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:29:09,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:29:09,239 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 5 states. [2019-09-20 13:29:09,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:09,299 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2019-09-20 13:29:09,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:29:09,300 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-09-20 13:29:09,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:09,303 INFO L225 Difference]: With dead ends: 49 [2019-09-20 13:29:09,303 INFO L226 Difference]: Without dead ends: 46 [2019-09-20 13:29:09,304 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:09,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-09-20 13:29:09,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2019-09-20 13:29:09,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-09-20 13:29:09,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2019-09-20 13:29:09,319 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 25 [2019-09-20 13:29:09,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:09,320 INFO L475 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2019-09-20 13:29:09,320 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:29:09,320 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2019-09-20 13:29:09,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-09-20 13:29:09,322 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:09,322 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:09,322 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:09,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:09,323 INFO L82 PathProgramCache]: Analyzing trace with hash 965527869, now seen corresponding path program 1 times [2019-09-20 13:29:09,323 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:09,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:09,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:09,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:09,328 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:09,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:09,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:09,495 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:29:09,495 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:29:09,496 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 35 with the following transitions: [2019-09-20 13:29:09,498 INFO L207 CegarAbsIntRunner]: [34], [41], [47], [48], [51], [57], [59], [61], [63], [67], [68], [69], [75], [77], [78], [79], [80], [81], [83], [89], [98], [106], [108], [111], [121], [129], [130], [133], [134], [137], [138], [141], [142], [143] [2019-09-20 13:29:09,540 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:29:09,540 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:29:09,635 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:29:09,636 INFO L272 AbstractInterpreter]: Visited 12 different actions 12 times. Never merged. Never widened. Performed 47 root evaluator evaluations with a maximum evaluation depth of 4. Performed 47 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Never found a fixpoint. Largest state had 29 variables. [2019-09-20 13:29:09,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:09,639 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:29:09,697 INFO L227 lantSequenceWeakener]: Weakened 10 states. On average, predicates are now at 80.33% of their original sizes. [2019-09-20 13:29:09,698 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:29:09,742 INFO L420 sIntCurrentIteration]: We unified 33 AI predicates to 33 [2019-09-20 13:29:09,742 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:29:09,743 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:29:09,743 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2019-09-20 13:29:09,743 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:09,743 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:09,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:09,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:09,744 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 7 states. [2019-09-20 13:29:09,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:09,771 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-09-20 13:29:09,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:29:09,772 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-09-20 13:29:09,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:09,772 INFO L225 Difference]: With dead ends: 11 [2019-09-20 13:29:09,772 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:09,773 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:29:09,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:09,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:09,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:09,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:09,774 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-09-20 13:29:09,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:09,774 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:09,774 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:09,775 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:09,775 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:09,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:09 BoogieIcfgContainer [2019-09-20 13:29:09,780 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:09,782 INFO L168 Benchmark]: Toolchain (without parser) took 2673.78 ms. Allocated memory was 139.5 MB in the beginning and 224.4 MB in the end (delta: 84.9 MB). Free memory was 84.5 MB in the beginning and 165.9 MB in the end (delta: -81.3 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:09,783 INFO L168 Benchmark]: CDTParser took 1.25 ms. Allocated memory is still 139.5 MB. Free memory was 104.1 MB in the beginning and 103.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:09,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 755.46 ms. Allocated memory was 139.5 MB in the beginning and 200.3 MB in the end (delta: 60.8 MB). Free memory was 84.1 MB in the beginning and 164.0 MB in the end (delta: -79.9 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:09,785 INFO L168 Benchmark]: Boogie Preprocessor took 68.49 ms. Allocated memory is still 200.3 MB. Free memory was 164.0 MB in the beginning and 161.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:09,786 INFO L168 Benchmark]: RCFGBuilder took 786.08 ms. Allocated memory is still 200.3 MB. Free memory was 161.0 MB in the beginning and 114.3 MB in the end (delta: 46.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:09,787 INFO L168 Benchmark]: TraceAbstraction took 1058.51 ms. Allocated memory was 200.3 MB in the beginning and 224.4 MB in the end (delta: 24.1 MB). Free memory was 113.7 MB in the beginning and 165.9 MB in the end (delta: -52.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:29:09,790 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.25 ms. Allocated memory is still 139.5 MB. Free memory was 104.1 MB in the beginning and 103.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 755.46 ms. Allocated memory was 139.5 MB in the beginning and 200.3 MB in the end (delta: 60.8 MB). Free memory was 84.1 MB in the beginning and 164.0 MB in the end (delta: -79.9 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 68.49 ms. Allocated memory is still 200.3 MB. Free memory was 164.0 MB in the beginning and 161.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 786.08 ms. Allocated memory is still 200.3 MB. Free memory was 161.0 MB in the beginning and 114.3 MB in the end (delta: 46.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1058.51 ms. Allocated memory was 200.3 MB in the beginning and 224.4 MB in the end (delta: 24.1 MB). Free memory was 113.7 MB in the beginning and 165.9 MB in the end (delta: -52.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 619]: 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, 62 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 110 SDtfs, 19 SDslu, 135 SDs, 0 SdLazy, 24 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred 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, 0.9212121212121211 AbsIntWeakeningRatio, 1.2424242424242424 AbsIntAvgWeakeningVarsNumRemoved, 1.121212121212121 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 3141 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/1 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...