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/heap-data/hash_fun.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:48:20,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:48:20,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:48:20,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:48:20,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:48:20,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:48:20,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:48:20,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:48:20,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:48:20,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:48:20,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:48:20,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:48:20,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:48:20,214 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:48:20,215 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:48:20,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:48:20,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:48:20,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:48:20,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:48:20,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:48:20,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:48:20,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:48:20,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:48:20,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:48:20,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:48:20,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:48:20,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:48:20,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:48:20,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:48:20,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:48:20,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:48:20,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:48:20,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:48:20,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:48:20,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:48:20,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:48:20,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:48:20,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:48:20,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:48:20,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:48:20,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:48:20,236 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 01:48:20,250 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:48:20,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:48:20,250 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:48:20,250 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:48:20,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:48:20,251 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:48:20,251 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:48:20,252 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:48:20,252 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:48:20,252 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:48:20,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:48:20,253 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:48:20,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:48:20,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:48:20,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:48:20,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:48:20,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:48:20,254 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:48:20,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:48:20,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:48:20,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:48:20,255 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:48:20,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:48:20,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:48:20,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:48:20,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:48:20,256 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:48:20,256 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:48:20,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:48:20,256 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:48:20,292 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:48:20,309 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:48:20,314 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:48:20,315 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:48:20,316 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:48:20,318 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/hash_fun.i [2019-09-10 01:48:20,388 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ce002810/fec8cedefd1e457d8c3fd10ac4c9dc15/FLAG7720f73e1 [2019-09-10 01:48:20,869 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:48:20,869 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/hash_fun.i [2019-09-10 01:48:20,882 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ce002810/fec8cedefd1e457d8c3fd10ac4c9dc15/FLAG7720f73e1 [2019-09-10 01:48:21,229 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ce002810/fec8cedefd1e457d8c3fd10ac4c9dc15 [2019-09-10 01:48:21,238 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:48:21,239 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:48:21,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:48:21,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:48:21,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:48:21,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:48:21" (1/1) ... [2019-09-10 01:48:21,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4556da18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:21, skipping insertion in model container [2019-09-10 01:48:21,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:48:21" (1/1) ... [2019-09-10 01:48:21,254 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:48:21,303 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:48:21,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:48:21,773 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:48:21,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:48:21,905 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:48:21,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:21 WrapperNode [2019-09-10 01:48:21,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:48:21,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:48:21,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:48:21,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:48:21,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:21" (1/1) ... [2019-09-10 01:48:21,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:21" (1/1) ... [2019-09-10 01:48:21,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:21" (1/1) ... [2019-09-10 01:48:21,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:21" (1/1) ... [2019-09-10 01:48:21,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:21" (1/1) ... [2019-09-10 01:48:21,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:21" (1/1) ... [2019-09-10 01:48:21,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:21" (1/1) ... [2019-09-10 01:48:21,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:48:21,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:48:21,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:48:21,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:48:21,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:48:22,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:48:22,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:48:22,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-10 01:48:22,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-10 01:48:22,026 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_fun [2019-09-10 01:48:22,026 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_list [2019-09-10 01:48:22,026 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:48:22,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 01:48:22,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:48:22,027 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-10 01:48:22,027 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-10 01:48:22,027 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-10 01:48:22,027 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-10 01:48:22,028 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-10 01:48:22,028 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-10 01:48:22,028 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-10 01:48:22,028 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-10 01:48:22,028 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-10 01:48:22,028 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-10 01:48:22,029 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-10 01:48:22,029 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-10 01:48:22,029 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-10 01:48:22,029 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-10 01:48:22,029 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-10 01:48:22,029 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-10 01:48:22,030 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-10 01:48:22,030 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-10 01:48:22,030 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-10 01:48:22,030 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-10 01:48:22,030 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-10 01:48:22,030 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-10 01:48:22,031 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-10 01:48:22,031 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-10 01:48:22,031 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-10 01:48:22,031 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-10 01:48:22,031 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-10 01:48:22,031 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-10 01:48:22,031 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-10 01:48:22,032 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-10 01:48:22,032 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-10 01:48:22,032 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-10 01:48:22,032 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-10 01:48:22,032 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-10 01:48:22,032 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-10 01:48:22,032 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-10 01:48:22,033 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-10 01:48:22,033 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-10 01:48:22,033 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-10 01:48:22,033 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-10 01:48:22,033 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-10 01:48:22,033 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-10 01:48:22,034 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-10 01:48:22,034 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-10 01:48:22,034 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-10 01:48:22,034 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-10 01:48:22,034 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-10 01:48:22,034 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-10 01:48:22,034 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-10 01:48:22,035 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-10 01:48:22,035 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-10 01:48:22,035 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-10 01:48:22,035 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 01:48:22,035 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 01:48:22,035 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-10 01:48:22,036 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 01:48:22,036 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-10 01:48:22,036 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-10 01:48:22,036 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-10 01:48:22,036 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-10 01:48:22,036 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-10 01:48:22,036 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-10 01:48:22,037 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-10 01:48:22,037 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-10 01:48:22,037 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-10 01:48:22,037 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 01:48:22,037 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-10 01:48:22,037 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-10 01:48:22,038 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-10 01:48:22,038 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-10 01:48:22,038 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-10 01:48:22,038 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-10 01:48:22,038 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-10 01:48:22,038 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-10 01:48:22,039 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-10 01:48:22,039 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-10 01:48:22,039 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-10 01:48:22,039 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-10 01:48:22,039 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-10 01:48:22,039 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-10 01:48:22,039 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-10 01:48:22,040 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-10 01:48:22,040 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-10 01:48:22,040 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-10 01:48:22,040 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-10 01:48:22,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-10 01:48:22,040 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-10 01:48:22,041 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-10 01:48:22,041 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-10 01:48:22,041 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-10 01:48:22,041 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-10 01:48:22,041 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-10 01:48:22,041 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-10 01:48:22,041 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-10 01:48:22,042 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-10 01:48:22,042 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-10 01:48:22,042 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-10 01:48:22,042 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-10 01:48:22,042 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-10 01:48:22,042 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-10 01:48:22,042 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-10 01:48:22,043 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-10 01:48:22,043 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-10 01:48:22,043 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-10 01:48:22,043 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-10 01:48:22,043 INFO L130 BoogieDeclarations]: Found specification of procedure hash_fun [2019-09-10 01:48:22,043 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_list [2019-09-10 01:48:22,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 01:48:22,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 01:48:22,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 01:48:22,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:48:22,044 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:48:22,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 01:48:22,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-10 01:48:22,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:48:22,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:48:22,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:48:22,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:48:22,561 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:48:22,561 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-10 01:48:22,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:48:22 BoogieIcfgContainer [2019-09-10 01:48:22,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:48:22,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:48:22,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:48:22,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:48:22,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:48:21" (1/3) ... [2019-09-10 01:48:22,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f4e3ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:48:22, skipping insertion in model container [2019-09-10 01:48:22,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:21" (2/3) ... [2019-09-10 01:48:22,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f4e3ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:48:22, skipping insertion in model container [2019-09-10 01:48:22,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:48:22" (3/3) ... [2019-09-10 01:48:22,577 INFO L109 eAbstractionObserver]: Analyzing ICFG hash_fun.i [2019-09-10 01:48:22,587 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:48:22,597 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:48:22,615 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:48:22,651 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:48:22,651 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:48:22,651 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:48:22,651 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:48:22,652 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:48:22,652 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:48:22,652 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:48:22,652 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:48:22,666 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-09-10 01:48:22,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-10 01:48:22,675 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:48:22,676 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:48:22,678 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:48:22,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:48:22,684 INFO L82 PathProgramCache]: Analyzing trace with hash 58523941, now seen corresponding path program 1 times [2019-09-10 01:48:22,686 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:48:22,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:48:22,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:48:22,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:48:22,736 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:48:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:48:22,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:48:22,814 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:48:22,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 01:48:22,815 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:48:22,819 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:48:22,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:48:22,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:48:22,836 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2019-09-10 01:48:22,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:48:22,850 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2019-09-10 01:48:22,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:48:22,851 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-09-10 01:48:22,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:48:22,862 INFO L225 Difference]: With dead ends: 31 [2019-09-10 01:48:22,862 INFO L226 Difference]: Without dead ends: 26 [2019-09-10 01:48:22,864 INFO L628 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 [2019-09-10 01:48:22,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-09-10 01:48:22,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-09-10 01:48:22,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-09-10 01:48:22,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2019-09-10 01:48:22,898 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 12 [2019-09-10 01:48:22,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:48:22,898 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2019-09-10 01:48:22,898 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:48:22,898 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2019-09-10 01:48:22,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-10 01:48:22,899 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:48:22,899 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:48:22,899 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:48:22,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:48:22,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1222839633, now seen corresponding path program 1 times [2019-09-10 01:48:22,900 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:48:22,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:48:22,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:48:22,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:48:22,903 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:48:22,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:48:23,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:48:23,012 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:48:23,013 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 01:48:23,013 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:48:23,014 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:48:23,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:48:23,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:48:23,015 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 4 states. [2019-09-10 01:48:23,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:48:23,078 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2019-09-10 01:48:23,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 01:48:23,079 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-09-10 01:48:23,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:48:23,081 INFO L225 Difference]: With dead ends: 35 [2019-09-10 01:48:23,081 INFO L226 Difference]: Without dead ends: 33 [2019-09-10 01:48:23,082 INFO L628 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 [2019-09-10 01:48:23,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-09-10 01:48:23,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2019-09-10 01:48:23,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-09-10 01:48:23,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2019-09-10 01:48:23,093 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 13 [2019-09-10 01:48:23,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:48:23,094 INFO L475 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2019-09-10 01:48:23,094 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:48:23,094 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2019-09-10 01:48:23,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-09-10 01:48:23,096 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:48:23,096 INFO L399 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, 1] [2019-09-10 01:48:23,097 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:48:23,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:48:23,097 INFO L82 PathProgramCache]: Analyzing trace with hash 479588754, now seen corresponding path program 1 times [2019-09-10 01:48:23,097 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:48:23,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:48:23,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:48:23,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:48:23,100 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:48:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:48:23,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:48:23,308 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:48:23,308 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 01:48:23,309 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 27 with the following transitions: [2019-09-10 01:48:23,311 INFO L207 CegarAbsIntRunner]: [0], [1], [4], [5], [6], [11], [14], [16], [19], [21], [24], [38], [43], [48], [52], [53], [66], [67], [71], [72], [73], [74], [75], [76], [77] [2019-09-10 01:48:23,347 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 01:48:23,347 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 01:48:23,406 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 01:48:23,408 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 32 variables. [2019-09-10 01:48:23,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:48:23,411 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 01:48:23,446 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-09-10 01:48:23,446 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 01:48:23,448 INFO L420 sIntCurrentIteration]: We unified 25 AI predicates to 25 [2019-09-10 01:48:23,448 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 01:48:23,449 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 01:48:23,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-10 01:48:23,449 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:48:23,450 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:48:23,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:48:23,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:48:23,451 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand 2 states. [2019-09-10 01:48:23,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:48:23,451 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-09-10 01:48:23,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:48:23,452 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 26 [2019-09-10 01:48:23,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:48:23,452 INFO L225 Difference]: With dead ends: 6 [2019-09-10 01:48:23,452 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 01:48:23,453 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:48:23,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 01:48:23,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 01:48:23,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 01:48:23,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 01:48:23,454 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2019-09-10 01:48:23,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:48:23,454 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 01:48:23,454 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:48:23,454 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 01:48:23,454 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 01:48:23,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:48:23 BoogieIcfgContainer [2019-09-10 01:48:23,459 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:48:23,462 INFO L168 Benchmark]: Toolchain (without parser) took 2222.14 ms. Allocated memory was 134.2 MB in the beginning and 228.1 MB in the end (delta: 93.8 MB). Free memory was 89.2 MB in the beginning and 180.8 MB in the end (delta: -91.6 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:48:23,463 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 134.2 MB. Free memory was 108.8 MB in the beginning and 108.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:48:23,464 INFO L168 Benchmark]: CACSL2BoogieTranslator took 666.76 ms. Allocated memory was 134.2 MB in the beginning and 201.3 MB in the end (delta: 67.1 MB). Free memory was 89.0 MB in the beginning and 165.5 MB in the end (delta: -76.5 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:48:23,465 INFO L168 Benchmark]: Boogie Preprocessor took 58.36 ms. Allocated memory is still 201.3 MB. Free memory was 165.5 MB in the beginning and 162.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2019-09-10 01:48:23,466 INFO L168 Benchmark]: RCFGBuilder took 597.41 ms. Allocated memory is still 201.3 MB. Free memory was 162.4 MB in the beginning and 121.0 MB in the end (delta: 41.4 MB). Peak memory consumption was 41.4 MB. Max. memory is 7.1 GB. [2019-09-10 01:48:23,467 INFO L168 Benchmark]: TraceAbstraction took 895.69 ms. Allocated memory was 201.3 MB in the beginning and 228.1 MB in the end (delta: 26.7 MB). Free memory was 120.4 MB in the beginning and 180.8 MB in the end (delta: -60.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 01:48:23,471 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 134.2 MB. Free memory was 108.8 MB in the beginning and 108.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 666.76 ms. Allocated memory was 134.2 MB in the beginning and 201.3 MB in the end (delta: 67.1 MB). Free memory was 89.0 MB in the beginning and 165.5 MB in the end (delta: -76.5 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 58.36 ms. Allocated memory is still 201.3 MB. Free memory was 165.5 MB in the beginning and 162.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 597.41 ms. Allocated memory is still 201.3 MB. Free memory was 162.4 MB in the beginning and 121.0 MB in the end (delta: 41.4 MB). Peak memory consumption was 41.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 895.69 ms. Allocated memory was 201.3 MB in the beginning and 228.1 MB in the end (delta: 26.7 MB). Free memory was 120.4 MB in the beginning and 180.8 MB in the end (delta: -60.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 581]: 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 7 procedures, 37 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 71 SDtfs, 7 SDslu, 52 SDs, 0 SdLazy, 11 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=2, 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, 0.97 AbsIntWeakeningRatio, 1.28 AbsIntAvgWeakeningVarsNumRemoved, 0.24 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 4916 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...