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-ext2-properties/simple_search_value-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:28:56,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:28:56,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:28:56,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:28:56,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:28:56,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:28:56,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:28:56,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:28:56,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:28:56,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:28:56,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:28:56,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:28:56,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:28:56,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:28:56,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:28:56,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:28:56,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:28:56,155 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:28:56,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:28:56,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:28:56,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:28:56,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:28:56,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:28:56,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:28:56,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:28:56,166 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:28:56,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:28:56,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:28:56,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:28:56,169 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:28:56,169 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:28:56,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:28:56,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:28:56,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:28:56,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:28:56,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:28:56,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:28:56,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:28:56,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:28:56,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:28:56,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:28:56,182 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 13:28:56,205 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:28:56,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:28:56,206 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:28:56,206 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:28:56,207 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:28:56,207 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:28:56,207 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:28:56,207 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:28:56,208 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:28:56,208 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:28:56,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:28:56,210 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:28:56,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:28:56,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:28:56,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:28:56,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:28:56,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:28:56,212 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:28:56,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:28:56,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:28:56,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:28:56,213 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:28:56,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:28:56,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:28:56,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:28:56,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:28:56,214 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:28:56,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:28:56,215 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:28:56,215 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:28:56,265 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:28:56,276 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:28:56,279 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:28:56,281 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:28:56,281 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:28:56,282 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext2-properties/simple_search_value-1.i [2019-09-20 13:28:56,343 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27b875b78/d726ee213c8e4de2a76d5699704ef77b/FLAGe6e4abf9c [2019-09-20 13:28:56,871 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:28:56,872 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext2-properties/simple_search_value-1.i [2019-09-20 13:28:56,888 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27b875b78/d726ee213c8e4de2a76d5699704ef77b/FLAGe6e4abf9c [2019-09-20 13:28:57,202 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27b875b78/d726ee213c8e4de2a76d5699704ef77b [2019-09-20 13:28:57,211 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:28:57,213 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:28:57,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:57,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:28:57,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:28:57,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:57" (1/1) ... [2019-09-20 13:28:57,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e964ed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:57, skipping insertion in model container [2019-09-20 13:28:57,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:57" (1/1) ... [2019-09-20 13:28:57,231 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:28:57,284 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:28:57,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:57,796 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:28:57,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:57,905 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:28:57,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:57 WrapperNode [2019-09-20 13:28:57,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:57,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:28:57,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:28:57,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:28:57,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:57" (1/1) ... [2019-09-20 13:28:57,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:57" (1/1) ... [2019-09-20 13:28:57,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:57" (1/1) ... [2019-09-20 13:28:57,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:57" (1/1) ... [2019-09-20 13:28:57,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:57" (1/1) ... [2019-09-20 13:28:57,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:57" (1/1) ... [2019-09-20 13:28:57,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:57" (1/1) ... [2019-09-20 13:28:57,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:28:57,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:28:57,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:28:57,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:28:57,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:57" (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 13:28:58,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:28:58,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:28:58,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-20 13:28:58,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-20 13:28:58,051 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-09-20 13:28:58,051 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:28:58,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:28:58,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:28:58,052 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-20 13:28:58,052 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-20 13:28:58,052 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-20 13:28:58,052 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-20 13:28:58,052 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-20 13:28:58,053 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-20 13:28:58,053 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-20 13:28:58,053 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-20 13:28:58,053 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-20 13:28:58,053 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-20 13:28:58,053 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-20 13:28:58,054 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-20 13:28:58,054 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-20 13:28:58,054 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-20 13:28:58,054 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-20 13:28:58,054 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-20 13:28:58,054 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-20 13:28:58,055 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-20 13:28:58,055 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-20 13:28:58,055 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-20 13:28:58,055 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-20 13:28:58,055 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-20 13:28:58,055 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-20 13:28:58,056 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-20 13:28:58,056 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-20 13:28:58,056 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-20 13:28:58,056 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-20 13:28:58,056 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-20 13:28:58,056 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-20 13:28:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-20 13:28:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-20 13:28:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-20 13:28:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-20 13:28:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-20 13:28:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-20 13:28:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-20 13:28:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-20 13:28:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-20 13:28:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-20 13:28:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-20 13:28:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-20 13:28:58,059 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-20 13:28:58,059 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-20 13:28:58,059 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-20 13:28:58,059 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-20 13:28:58,059 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-20 13:28:58,059 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-20 13:28:58,059 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-20 13:28:58,060 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-20 13:28:58,060 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-20 13:28:58,060 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-20 13:28:58,060 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-20 13:28:58,060 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:28:58,060 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-20 13:28:58,061 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-20 13:28:58,061 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:28:58,061 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-20 13:28:58,061 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-20 13:28:58,061 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-20 13:28:58,061 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-20 13:28:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-20 13:28:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-20 13:28:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-20 13:28:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-20 13:28:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-20 13:28:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-20 13:28:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-20 13:28:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-20 13:28:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-20 13:28:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-20 13:28:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-20 13:28:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-20 13:28:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-20 13:28:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-20 13:28:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-20 13:28:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-20 13:28:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-20 13:28:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-20 13:28:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-20 13:28:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-20 13:28:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-20 13:28:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-20 13:28:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-20 13:28:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-20 13:28:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-20 13:28:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-20 13:28:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-20 13:28:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-20 13:28:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-20 13:28:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-20 13:28:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-20 13:28:58,067 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-20 13:28:58,067 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-20 13:28:58,067 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-20 13:28:58,067 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-20 13:28:58,067 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-20 13:28:58,067 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-20 13:28:58,067 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-20 13:28:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-20 13:28:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-20 13:28:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-20 13:28:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-20 13:28:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-20 13:28:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-20 13:28:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-20 13:28:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-09-20 13:28:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:28:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:28:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:28:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:28:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:28:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:28:58,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:28:58,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:28:58,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:28:58,428 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-09-20 13:28:58,626 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:28:58,627 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-20 13:28:58,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:58 BoogieIcfgContainer [2019-09-20 13:28:58,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:28:58,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:28:58,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:28:58,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:28:58,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:28:57" (1/3) ... [2019-09-20 13:28:58,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@181548b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:28:58, skipping insertion in model container [2019-09-20 13:28:58,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:57" (2/3) ... [2019-09-20 13:28:58,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@181548b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:28:58, skipping insertion in model container [2019-09-20 13:28:58,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:58" (3/3) ... [2019-09-20 13:28:58,637 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_search_value-1.i [2019-09-20 13:28:58,647 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:28:58,656 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:28:58,674 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:28:58,701 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:28:58,702 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:28:58,702 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:28:58,702 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:28:58,702 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:28:58,703 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:28:58,703 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:28:58,703 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:28:58,715 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-09-20 13:28:58,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-20 13:28:58,725 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:58,726 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:58,728 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:58,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:58,732 INFO L82 PathProgramCache]: Analyzing trace with hash -2052998842, now seen corresponding path program 1 times [2019-09-20 13:28:58,734 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:58,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:58,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:58,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:58,786 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:58,873 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 13:28:58,875 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:58,876 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:28:58,876 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:58,881 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:28:58,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:28:58,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:28:58,901 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2019-09-20 13:28:58,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:58,925 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2019-09-20 13:28:58,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:28:58,928 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-09-20 13:28:58,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:58,937 INFO L225 Difference]: With dead ends: 31 [2019-09-20 13:28:58,937 INFO L226 Difference]: Without dead ends: 22 [2019-09-20 13:28:58,940 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 13:28:58,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-09-20 13:28:58,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-09-20 13:28:58,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-09-20 13:28:58,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2019-09-20 13:28:58,984 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 13 [2019-09-20 13:28:58,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:58,985 INFO L475 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2019-09-20 13:28:58,985 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:28:58,986 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-09-20 13:28:58,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-20 13:28:58,986 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:58,987 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:58,987 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:58,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:58,988 INFO L82 PathProgramCache]: Analyzing trace with hash 702499287, now seen corresponding path program 1 times [2019-09-20 13:28:58,988 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:58,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:58,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:58,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:58,993 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:59,075 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 13:28:59,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:59,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:28:59,076 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:59,079 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:28:59,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:28:59,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:28:59,084 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 3 states. [2019-09-20 13:28:59,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:59,117 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2019-09-20 13:28:59,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:28:59,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-09-20 13:28:59,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:59,120 INFO L225 Difference]: With dead ends: 23 [2019-09-20 13:28:59,120 INFO L226 Difference]: Without dead ends: 23 [2019-09-20 13:28:59,123 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 13:28:59,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-09-20 13:28:59,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-09-20 13:28:59,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-09-20 13:28:59,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2019-09-20 13:28:59,131 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 15 [2019-09-20 13:28:59,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:59,131 INFO L475 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2019-09-20 13:28:59,131 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:28:59,132 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2019-09-20 13:28:59,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-20 13:28:59,133 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:59,133 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:59,133 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:59,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:59,134 INFO L82 PathProgramCache]: Analyzing trace with hash 759757589, now seen corresponding path program 1 times [2019-09-20 13:28:59,134 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:59,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:59,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:59,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:59,142 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:59,229 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 13:28:59,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:59,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:28:59,230 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:59,230 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:28:59,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:28:59,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:28:59,233 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 4 states. [2019-09-20 13:28:59,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:59,287 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2019-09-20 13:28:59,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:28:59,288 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-09-20 13:28:59,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:59,289 INFO L225 Difference]: With dead ends: 28 [2019-09-20 13:28:59,289 INFO L226 Difference]: Without dead ends: 28 [2019-09-20 13:28:59,290 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:28:59,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-09-20 13:28:59,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2019-09-20 13:28:59,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-09-20 13:28:59,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2019-09-20 13:28:59,295 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 15 [2019-09-20 13:28:59,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:59,295 INFO L475 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2019-09-20 13:28:59,296 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:28:59,296 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2019-09-20 13:28:59,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-20 13:28:59,297 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:59,297 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:59,297 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:59,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:59,298 INFO L82 PathProgramCache]: Analyzing trace with hash 299645265, now seen corresponding path program 1 times [2019-09-20 13:28:59,298 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:59,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:59,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:59,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:59,302 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:59,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:59,377 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:28:59,378 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:59,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:28:59,378 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:59,379 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:28:59,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:28:59,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:28:59,380 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand 4 states. [2019-09-20 13:28:59,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:59,460 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2019-09-20 13:28:59,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:28:59,460 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-09-20 13:28:59,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:59,461 INFO L225 Difference]: With dead ends: 33 [2019-09-20 13:28:59,461 INFO L226 Difference]: Without dead ends: 33 [2019-09-20 13:28:59,462 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:28:59,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-09-20 13:28:59,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 26. [2019-09-20 13:28:59,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-09-20 13:28:59,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2019-09-20 13:28:59,466 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 20 [2019-09-20 13:28:59,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:59,466 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2019-09-20 13:28:59,467 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:28:59,467 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2019-09-20 13:28:59,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-09-20 13:28:59,468 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:59,468 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, 1, 1] [2019-09-20 13:28:59,468 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:59,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:59,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1130545059, now seen corresponding path program 1 times [2019-09-20 13:28:59,469 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:59,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:59,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:59,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:59,472 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:59,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:59,585 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:28:59,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:59,586 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:28:59,586 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:59,587 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:28:59,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:28:59,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:28:59,587 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 5 states. [2019-09-20 13:28:59,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:59,667 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2019-09-20 13:28:59,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:28:59,668 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-09-20 13:28:59,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:59,669 INFO L225 Difference]: With dead ends: 29 [2019-09-20 13:28:59,669 INFO L226 Difference]: Without dead ends: 29 [2019-09-20 13:28:59,670 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 13:28:59,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-09-20 13:28:59,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2019-09-20 13:28:59,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-09-20 13:28:59,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2019-09-20 13:28:59,677 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 25 [2019-09-20 13:28:59,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:59,678 INFO L475 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2019-09-20 13:28:59,678 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:28:59,682 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2019-09-20 13:28:59,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-09-20 13:28:59,683 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:59,683 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, 1, 1] [2019-09-20 13:28:59,684 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:59,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:59,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1128698017, now seen corresponding path program 1 times [2019-09-20 13:28:59,685 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:59,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:59,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:59,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:59,689 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:59,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:59,763 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-20 13:28:59,764 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:28:59,764 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:28:59,765 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 26 with the following transitions: [2019-09-20 13:28:59,767 INFO L207 CegarAbsIntRunner]: [7], [8], [9], [15], [17], [22], [25], [27], [31], [33], [39], [41], [45], [52], [54], [57], [61], [66], [68], [74], [76], [92], [93], [94] [2019-09-20 13:28:59,810 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:28:59,811 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:28:59,878 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:28:59,880 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 19 root evaluator evaluations with a maximum evaluation depth of 0. Performed 19 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 38 variables. [2019-09-20 13:28:59,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:59,884 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:28:59,917 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-09-20 13:28:59,917 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:28:59,919 INFO L420 sIntCurrentIteration]: We unified 24 AI predicates to 24 [2019-09-20 13:28:59,919 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:28:59,920 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:28:59,920 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2019-09-20 13:28:59,921 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:59,921 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:28:59,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:28:59,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:28:59,922 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 2 states. [2019-09-20 13:28:59,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:59,923 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-09-20 13:28:59,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:28:59,923 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2019-09-20 13:28:59,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:59,923 INFO L225 Difference]: With dead ends: 6 [2019-09-20 13:28:59,924 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:28:59,924 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 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 13:28:59,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:28:59,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:28:59,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:28:59,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:28:59,925 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2019-09-20 13:28:59,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:59,925 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:28:59,925 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:28:59,926 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:28:59,926 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:28:59,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:28:59 BoogieIcfgContainer [2019-09-20 13:28:59,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:28:59,934 INFO L168 Benchmark]: Toolchain (without parser) took 2720.10 ms. Allocated memory was 138.9 MB in the beginning and 221.2 MB in the end (delta: 82.3 MB). Free memory was 84.9 MB in the beginning and 152.7 MB in the end (delta: -67.7 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:59,935 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 104.8 MB in the beginning and 104.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-09-20 13:28:59,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 692.39 ms. Allocated memory was 138.9 MB in the beginning and 198.7 MB in the end (delta: 59.8 MB). Free memory was 84.7 MB in the beginning and 163.6 MB in the end (delta: -78.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:59,937 INFO L168 Benchmark]: Boogie Preprocessor took 75.85 ms. Allocated memory is still 198.7 MB. Free memory was 163.6 MB in the beginning and 161.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:59,938 INFO L168 Benchmark]: RCFGBuilder took 645.35 ms. Allocated memory is still 198.7 MB. Free memory was 161.0 MB in the beginning and 119.3 MB in the end (delta: 41.7 MB). Peak memory consumption was 41.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:59,938 INFO L168 Benchmark]: TraceAbstraction took 1301.59 ms. Allocated memory was 198.7 MB in the beginning and 221.2 MB in the end (delta: 22.5 MB). Free memory was 118.7 MB in the beginning and 152.7 MB in the end (delta: -34.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:28:59,942 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 104.8 MB in the beginning and 104.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 692.39 ms. Allocated memory was 138.9 MB in the beginning and 198.7 MB in the end (delta: 59.8 MB). Free memory was 84.7 MB in the beginning and 163.6 MB in the end (delta: -78.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 75.85 ms. Allocated memory is still 198.7 MB. Free memory was 163.6 MB in the beginning and 161.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 645.35 ms. Allocated memory is still 198.7 MB. Free memory was 161.0 MB in the beginning and 119.3 MB in the end (delta: 41.7 MB). Peak memory consumption was 41.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1301.59 ms. Allocated memory was 198.7 MB in the beginning and 221.2 MB in the end (delta: 22.5 MB). Free memory was 118.7 MB in the beginning and 152.7 MB in the end (delta: -34.0 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 565]: 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 6 procedures, 38 locations, 1 error locations. SAFE Result, 1.2s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 128 SDtfs, 32 SDslu, 135 SDs, 0 SdLazy, 63 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 0.9583333333333334 AbsIntWeakeningRatio, 1.2083333333333333 AbsIntAvgWeakeningVarsNumRemoved, 0.25 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 3385 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 9/11 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...