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-properties/list_flag-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:28:13,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:28:13,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:28:13,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:28:13,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:28:13,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:28:13,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:28:13,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:28:13,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:28:13,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:28:13,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:28:13,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:28:13,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:28:13,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:28:13,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:28:13,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:28:13,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:28:13,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:28:13,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:28:13,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:28:13,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:28:13,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:28:13,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:28:13,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:28:13,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:28:13,187 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:28:13,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:28:13,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:28:13,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:28:13,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:28:13,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:28:13,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:28:13,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:28:13,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:28:13,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:28:13,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:28:13,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:28:13,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:28:13,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:28:13,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:28:13,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:28:13,199 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 13:28:13,215 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:28:13,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:28:13,216 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:28:13,216 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:28:13,216 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:28:13,217 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:28:13,217 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:28:13,217 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:28:13,217 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:28:13,218 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:28:13,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:28:13,221 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:28:13,221 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:28:13,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:28:13,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:28:13,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:28:13,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:28:13,222 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:28:13,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:28:13,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:28:13,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:28:13,222 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:28:13,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:28:13,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:28:13,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:28:13,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:28:13,224 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:28:13,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:28:13,225 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:28:13,225 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:28:13,267 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:28:13,280 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:28:13,284 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:28:13,286 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:28:13,287 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:28:13,287 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list_flag-2.i [2019-09-20 13:28:13,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bdb6aac9/94915b1c25f94c0290313e8137dd31ea/FLAG398f0ff3b [2019-09-20 13:28:13,894 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:28:13,895 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/list_flag-2.i [2019-09-20 13:28:13,910 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bdb6aac9/94915b1c25f94c0290313e8137dd31ea/FLAG398f0ff3b [2019-09-20 13:28:14,207 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bdb6aac9/94915b1c25f94c0290313e8137dd31ea [2019-09-20 13:28:14,218 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:28:14,219 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:28:14,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:14,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:28:14,228 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:28:14,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:14" (1/1) ... [2019-09-20 13:28:14,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25fad862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:14, skipping insertion in model container [2019-09-20 13:28:14,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:14" (1/1) ... [2019-09-20 13:28:14,242 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:28:14,299 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:28:14,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:14,825 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:28:14,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:14,958 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:28:14,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:14 WrapperNode [2019-09-20 13:28:14,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:14,960 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:28:14,960 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:28:14,960 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:28:14,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:14" (1/1) ... [2019-09-20 13:28:14,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:14" (1/1) ... [2019-09-20 13:28:14,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:14" (1/1) ... [2019-09-20 13:28:14,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:14" (1/1) ... [2019-09-20 13:28:15,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:14" (1/1) ... [2019-09-20 13:28:15,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:14" (1/1) ... [2019-09-20 13:28:15,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:14" (1/1) ... [2019-09-20 13:28:15,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:28:15,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:28:15,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:28:15,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:28:15,036 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:14" (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 13:28:15,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:28:15,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:28:15,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-20 13:28:15,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-20 13:28:15,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-09-20 13:28:15,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-09-20 13:28:15,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-09-20 13:28:15,097 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-09-20 13:28:15,098 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:28:15,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:28:15,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:28:15,098 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-20 13:28:15,098 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-20 13:28:15,098 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-20 13:28:15,099 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-20 13:28:15,099 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-20 13:28:15,099 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-20 13:28:15,099 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-20 13:28:15,099 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-20 13:28:15,100 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-20 13:28:15,100 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-20 13:28:15,100 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-20 13:28:15,100 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-20 13:28:15,100 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-20 13:28:15,100 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-20 13:28:15,100 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-20 13:28:15,101 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-20 13:28:15,101 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-20 13:28:15,101 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-20 13:28:15,101 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-09-20 13:28:15,101 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-09-20 13:28:15,101 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-09-20 13:28:15,102 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-20 13:28:15,102 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-20 13:28:15,102 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-20 13:28:15,102 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-20 13:28:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-20 13:28:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-20 13:28:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-20 13:28:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-20 13:28:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-20 13:28:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-20 13:28:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-20 13:28:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-20 13:28:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-20 13:28:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-20 13:28:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-20 13:28:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-20 13:28:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-20 13:28:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-20 13:28:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-20 13:28:15,106 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-20 13:28:15,106 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-20 13:28:15,106 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-20 13:28:15,106 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-20 13:28:15,106 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-20 13:28:15,107 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-20 13:28:15,107 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-20 13:28:15,107 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-20 13:28:15,107 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-20 13:28:15,107 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-20 13:28:15,107 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-20 13:28:15,107 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-20 13:28:15,108 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-20 13:28:15,108 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-20 13:28:15,108 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-20 13:28:15,108 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:28:15,109 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-20 13:28:15,110 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-20 13:28:15,110 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:28:15,110 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-20 13:28:15,110 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-20 13:28:15,110 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-20 13:28:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-20 13:28:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-20 13:28:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-20 13:28:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-20 13:28:15,112 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-20 13:28:15,112 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-20 13:28:15,113 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-20 13:28:15,113 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-20 13:28:15,113 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-20 13:28:15,113 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-20 13:28:15,113 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-20 13:28:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-20 13:28:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-20 13:28:15,115 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-20 13:28:15,115 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-20 13:28:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-20 13:28:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-20 13:28:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-20 13:28:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-20 13:28:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-20 13:28:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-20 13:28:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-20 13:28:15,117 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-20 13:28:15,117 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-20 13:28:15,117 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-20 13:28:15,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-20 13:28:15,117 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-20 13:28:15,117 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-20 13:28:15,117 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-20 13:28:15,118 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-20 13:28:15,118 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-20 13:28:15,118 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-20 13:28:15,118 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-20 13:28:15,118 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-20 13:28:15,118 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-20 13:28:15,118 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-20 13:28:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-20 13:28:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-20 13:28:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-20 13:28:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-20 13:28:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-20 13:28:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-20 13:28:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-20 13:28:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-20 13:28:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-20 13:28:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-09-20 13:28:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:28:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:28:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:28:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:28:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:28:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:28:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:28:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:28:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:28:15,531 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-09-20 13:28:15,701 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:28:15,702 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-09-20 13:28:15,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:15 BoogieIcfgContainer [2019-09-20 13:28:15,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:28:15,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:28:15,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:28:15,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:28:15,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:28:14" (1/3) ... [2019-09-20 13:28:15,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc7fffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:28:15, skipping insertion in model container [2019-09-20 13:28:15,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:14" (2/3) ... [2019-09-20 13:28:15,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc7fffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:28:15, skipping insertion in model container [2019-09-20 13:28:15,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:15" (3/3) ... [2019-09-20 13:28:15,720 INFO L109 eAbstractionObserver]: Analyzing ICFG list_flag-2.i [2019-09-20 13:28:15,731 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:28:15,740 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:28:15,760 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:28:15,788 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:28:15,789 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:28:15,789 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:28:15,789 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:28:15,789 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:28:15,789 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:28:15,790 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:28:15,790 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:28:15,802 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-09-20 13:28:15,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-20 13:28:15,813 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:15,814 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:15,816 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:15,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:15,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1184417696, now seen corresponding path program 1 times [2019-09-20 13:28:15,826 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:15,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:15,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:15,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:15,892 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:15,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:15,982 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 13:28:15,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:15,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:28:15,984 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:15,990 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:28:16,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:28:16,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:28:16,008 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2019-09-20 13:28:16,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:16,030 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2019-09-20 13:28:16,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:28:16,031 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-09-20 13:28:16,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:16,038 INFO L225 Difference]: With dead ends: 32 [2019-09-20 13:28:16,038 INFO L226 Difference]: Without dead ends: 24 [2019-09-20 13:28:16,040 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 13:28:16,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-09-20 13:28:16,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-09-20 13:28:16,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-09-20 13:28:16,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2019-09-20 13:28:16,075 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 15 [2019-09-20 13:28:16,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:16,076 INFO L475 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2019-09-20 13:28:16,076 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:28:16,076 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2019-09-20 13:28:16,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-20 13:28:16,077 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:16,077 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:16,078 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:16,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:16,078 INFO L82 PathProgramCache]: Analyzing trace with hash -218242506, now seen corresponding path program 1 times [2019-09-20 13:28:16,079 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:16,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:16,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:16,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:16,086 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:16,241 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 13:28:16,241 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:16,241 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:28:16,242 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:16,246 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:28:16,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:28:16,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:28:16,250 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 5 states. [2019-09-20 13:28:16,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:16,389 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2019-09-20 13:28:16,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:28:16,389 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-09-20 13:28:16,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:16,391 INFO L225 Difference]: With dead ends: 46 [2019-09-20 13:28:16,391 INFO L226 Difference]: Without dead ends: 44 [2019-09-20 13:28:16,392 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:28:16,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-09-20 13:28:16,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 32. [2019-09-20 13:28:16,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-09-20 13:28:16,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2019-09-20 13:28:16,399 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 17 [2019-09-20 13:28:16,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:16,399 INFO L475 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2019-09-20 13:28:16,399 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:28:16,400 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2019-09-20 13:28:16,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-20 13:28:16,400 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:16,401 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:16,401 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:16,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:16,401 INFO L82 PathProgramCache]: Analyzing trace with hash 771025649, now seen corresponding path program 1 times [2019-09-20 13:28:16,402 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:16,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:16,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:16,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:16,407 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:16,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:28:16,559 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:16,559 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:28:16,560 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:16,560 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:28:16,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:28:16,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:28:16,561 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 5 states. [2019-09-20 13:28:16,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:16,686 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2019-09-20 13:28:16,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:28:16,687 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-09-20 13:28:16,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:16,688 INFO L225 Difference]: With dead ends: 44 [2019-09-20 13:28:16,688 INFO L226 Difference]: Without dead ends: 42 [2019-09-20 13:28:16,689 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:28:16,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-09-20 13:28:16,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 30. [2019-09-20 13:28:16,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-09-20 13:28:16,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2019-09-20 13:28:16,698 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 19 [2019-09-20 13:28:16,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:16,698 INFO L475 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2019-09-20 13:28:16,699 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:28:16,699 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2019-09-20 13:28:16,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-20 13:28:16,702 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:16,702 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:16,702 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:16,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:16,703 INFO L82 PathProgramCache]: Analyzing trace with hash -472715872, now seen corresponding path program 1 times [2019-09-20 13:28:16,703 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:16,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:16,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:16,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:16,718 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:16,813 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:28:16,813 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:16,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:28:16,814 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:16,815 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:28:16,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:28:16,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:28:16,816 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand 5 states. [2019-09-20 13:28:16,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:16,901 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2019-09-20 13:28:16,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:28:16,901 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-09-20 13:28:16,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:16,902 INFO L225 Difference]: With dead ends: 42 [2019-09-20 13:28:16,902 INFO L226 Difference]: Without dead ends: 38 [2019-09-20 13:28:16,903 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:28:16,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-09-20 13:28:16,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 26. [2019-09-20 13:28:16,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-09-20 13:28:16,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2019-09-20 13:28:16,907 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 19 [2019-09-20 13:28:16,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:16,908 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2019-09-20 13:28:16,908 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:28:16,908 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2019-09-20 13:28:16,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-09-20 13:28:16,909 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:16,909 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:16,909 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:16,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:16,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1962636917, now seen corresponding path program 1 times [2019-09-20 13:28:16,910 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:16,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:16,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:16,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:16,914 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:16,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:28:16,987 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:16,987 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:28:16,987 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:16,987 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:28:16,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:28:16,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:28:16,988 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 3 states. [2019-09-20 13:28:17,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:17,002 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2019-09-20 13:28:17,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:28:17,003 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-09-20 13:28:17,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:17,004 INFO L225 Difference]: With dead ends: 38 [2019-09-20 13:28:17,004 INFO L226 Difference]: Without dead ends: 38 [2019-09-20 13:28:17,004 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:28:17,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-09-20 13:28:17,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2019-09-20 13:28:17,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-09-20 13:28:17,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2019-09-20 13:28:17,009 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 23 [2019-09-20 13:28:17,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:17,009 INFO L475 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2019-09-20 13:28:17,010 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:28:17,010 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2019-09-20 13:28:17,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-09-20 13:28:17,010 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:17,011 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:17,011 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:17,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:17,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1888593434, now seen corresponding path program 1 times [2019-09-20 13:28:17,011 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:17,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:17,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:17,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:17,015 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:17,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:28:17,137 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:28:17,137 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:28:17,138 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2019-09-20 13:28:17,140 INFO L207 CegarAbsIntRunner]: [11], [12], [13], [19], [21], [26], [29], [31], [34], [38], [44], [46], [50], [53], [58], [61], [82], [85], [87], [104], [105], [106] [2019-09-20 13:28:17,177 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:28:17,177 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:28:17,254 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:28:17,255 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 21 root evaluator evaluations with a maximum evaluation depth of 2. Performed 21 inverse root evaluator evaluations with a maximum inverse evaluation depth of 2. Never found a fixpoint. Largest state had 33 variables. [2019-09-20 13:28:17,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:17,260 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:28:17,293 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-09-20 13:28:17,294 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:28:17,295 INFO L420 sIntCurrentIteration]: We unified 22 AI predicates to 22 [2019-09-20 13:28:17,296 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:28:17,297 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:28:17,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2019-09-20 13:28:17,297 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:17,297 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:28:17,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:28:17,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:28:17,298 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand 2 states. [2019-09-20 13:28:17,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:17,299 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-09-20 13:28:17,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:28:17,299 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2019-09-20 13:28:17,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:17,300 INFO L225 Difference]: With dead ends: 6 [2019-09-20 13:28:17,300 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:28:17,300 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 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 13:28:17,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:28:17,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:28:17,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:28:17,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:28:17,301 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2019-09-20 13:28:17,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:17,301 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:28:17,301 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:28:17,301 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:28:17,301 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:28:17,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:28:17 BoogieIcfgContainer [2019-09-20 13:28:17,306 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:28:17,308 INFO L168 Benchmark]: Toolchain (without parser) took 3088.25 ms. Allocated memory was 132.1 MB in the beginning and 222.3 MB in the end (delta: 90.2 MB). Free memory was 86.6 MB in the beginning and 122.2 MB in the end (delta: -35.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:17,309 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 132.1 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:28:17,311 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.52 ms. Allocated memory was 132.1 MB in the beginning and 199.8 MB in the end (delta: 67.6 MB). Free memory was 86.4 MB in the beginning and 163.3 MB in the end (delta: -77.0 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:17,311 INFO L168 Benchmark]: Boogie Preprocessor took 71.55 ms. Allocated memory is still 199.8 MB. Free memory was 163.3 MB in the beginning and 160.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:17,312 INFO L168 Benchmark]: RCFGBuilder took 673.80 ms. Allocated memory is still 199.8 MB. Free memory was 160.8 MB in the beginning and 116.9 MB in the end (delta: 43.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:17,313 INFO L168 Benchmark]: TraceAbstraction took 1598.28 ms. Allocated memory was 199.8 MB in the beginning and 222.3 MB in the end (delta: 22.5 MB). Free memory was 116.3 MB in the beginning and 122.2 MB in the end (delta: -5.9 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:17,318 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 132.1 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 738.52 ms. Allocated memory was 132.1 MB in the beginning and 199.8 MB in the end (delta: 67.6 MB). Free memory was 86.4 MB in the beginning and 163.3 MB in the end (delta: -77.0 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 71.55 ms. Allocated memory is still 199.8 MB. Free memory was 163.3 MB in the beginning and 160.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 673.80 ms. Allocated memory is still 199.8 MB. Free memory was 160.8 MB in the beginning and 116.9 MB in the end (delta: 43.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1598.28 ms. Allocated memory was 199.8 MB in the beginning and 222.3 MB in the end (delta: 22.5 MB). Free memory was 116.3 MB in the beginning and 122.2 MB in the end (delta: -5.9 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 546]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 48 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 135 SDtfs, 71 SDslu, 179 SDs, 0 SdLazy, 132 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=5, 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, 0.8977272727272727 AbsIntWeakeningRatio, 0.9545454545454546 AbsIntAvgWeakeningVarsNumRemoved, 0.2727272727272727 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 40 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 7664 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 6/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...