java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/list-properties/splice-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:45:46,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:45:46,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:45:46,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:45:46,142 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:45:46,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:45:46,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:45:46,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:45:46,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:45:46,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:45:46,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:45:46,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:45:46,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:45:46,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:45:46,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:45:46,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:45:46,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:45:46,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:45:46,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:45:46,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:45:46,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:45:46,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:45:46,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:45:46,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:45:46,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:45:46,166 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:45:46,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:45:46,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:45:46,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:45:46,168 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:45:46,168 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:45:46,169 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:45:46,170 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:45:46,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:45:46,172 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:45:46,172 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:45:46,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:45:46,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:45:46,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:45:46,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:45:46,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:45:46,175 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 01:45:46,190 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:45:46,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:45:46,190 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:45:46,191 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:45:46,191 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:45:46,192 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:45:46,192 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:45:46,192 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:45:46,192 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:45:46,192 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:45:46,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:45:46,193 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:45:46,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:45:46,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:45:46,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:45:46,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:45:46,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:45:46,194 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:45:46,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:45:46,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:45:46,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:45:46,195 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:45:46,195 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:45:46,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:45:46,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:45:46,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:45:46,196 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:45:46,196 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:45:46,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:45:46,197 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:45:46,226 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:45:46,239 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:45:46,243 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:45:46,244 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:45:46,245 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:45:46,245 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/splice-2.i [2019-09-10 01:45:46,308 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4c58d84b/3e38f1904e3342938767d3e758fbdaed/FLAGd34ff0243 [2019-09-10 01:45:46,828 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:45:46,828 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/splice-2.i [2019-09-10 01:45:46,850 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4c58d84b/3e38f1904e3342938767d3e758fbdaed/FLAGd34ff0243 [2019-09-10 01:45:47,174 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4c58d84b/3e38f1904e3342938767d3e758fbdaed [2019-09-10 01:45:47,183 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:45:47,185 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:45:47,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:45:47,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:45:47,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:45:47,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:45:47" (1/1) ... [2019-09-10 01:45:47,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@412c5ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:47, skipping insertion in model container [2019-09-10 01:45:47,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:45:47" (1/1) ... [2019-09-10 01:45:47,202 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:45:47,253 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:45:47,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:45:47,762 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:45:47,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:45:47,861 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:45:47,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:47 WrapperNode [2019-09-10 01:45:47,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:45:47,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:45:47,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:45:47,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:45:47,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:47" (1/1) ... [2019-09-10 01:45:47,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:47" (1/1) ... [2019-09-10 01:45:47,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:47" (1/1) ... [2019-09-10 01:45:47,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:47" (1/1) ... [2019-09-10 01:45:47,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:47" (1/1) ... [2019-09-10 01:45:47,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:47" (1/1) ... [2019-09-10 01:45:47,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:47" (1/1) ... [2019-09-10 01:45:47,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:45:47,929 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:45:47,929 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:45:47,929 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:45:47,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:47" (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 01:45:47,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:45:47,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:45:47,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-10 01:45:47,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-10 01:45:47,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-09-10 01:45:47,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-09-10 01:45:47,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-09-10 01:45:47,996 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-09-10 01:45:47,996 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:45:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:45:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 01:45:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-10 01:45:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-10 01:45:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-10 01:45:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-10 01:45:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-10 01:45:47,998 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-10 01:45:47,998 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-10 01:45:47,998 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-10 01:45:47,998 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-10 01:45:47,998 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-10 01:45:47,998 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-10 01:45:47,999 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-10 01:45:47,999 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-10 01:45:47,999 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-10 01:45:47,999 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-10 01:45:47,999 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-10 01:45:47,999 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-10 01:45:48,000 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-10 01:45:48,000 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-09-10 01:45:48,000 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-09-10 01:45:48,000 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-09-10 01:45:48,000 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-10 01:45:48,000 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-10 01:45:48,001 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-10 01:45:48,001 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-10 01:45:48,001 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-10 01:45:48,001 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-10 01:45:48,001 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-10 01:45:48,001 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-10 01:45:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-10 01:45:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-10 01:45:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-10 01:45:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-10 01:45:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-10 01:45:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-10 01:45:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-10 01:45:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-10 01:45:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-10 01:45:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-10 01:45:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-10 01:45:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-10 01:45:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-10 01:45:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-10 01:45:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-10 01:45:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-10 01:45:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-10 01:45:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-10 01:45:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-10 01:45:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-10 01:45:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-10 01:45:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-10 01:45:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-10 01:45:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-10 01:45:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-10 01:45:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-10 01:45:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 01:45:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 01:45:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-10 01:45:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 01:45:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-10 01:45:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-10 01:45:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-10 01:45:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-10 01:45:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-10 01:45:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-10 01:45:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-10 01:45:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-10 01:45:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 01:45:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-10 01:45:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-10 01:45:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-10 01:45:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-10 01:45:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-10 01:45:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-10 01:45:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-10 01:45:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-10 01:45:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-10 01:45:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-10 01:45:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-10 01:45:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-10 01:45:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-10 01:45:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-10 01:45:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-10 01:45:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-10 01:45:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-10 01:45:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-10 01:45:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-10 01:45:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-10 01:45:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-10 01:45:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-10 01:45:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-10 01:45:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-10 01:45:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-10 01:45:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-10 01:45:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-10 01:45:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-10 01:45:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-10 01:45:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-10 01:45:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-10 01:45:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-10 01:45:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-10 01:45:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-10 01:45:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-10 01:45:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-10 01:45:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-10 01:45:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-10 01:45:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-10 01:45:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-09-10 01:45:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:45:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 01:45:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:45:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 01:45:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 01:45:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:45:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:45:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:45:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:45:48,374 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-09-10 01:45:48,652 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:45:48,652 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-10 01:45:48,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:45:48 BoogieIcfgContainer [2019-09-10 01:45:48,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:45:48,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:45:48,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:45:48,666 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:45:48,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:45:47" (1/3) ... [2019-09-10 01:45:48,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2621f153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:45:48, skipping insertion in model container [2019-09-10 01:45:48,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:47" (2/3) ... [2019-09-10 01:45:48,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2621f153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:45:48, skipping insertion in model container [2019-09-10 01:45:48,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:45:48" (3/3) ... [2019-09-10 01:45:48,675 INFO L109 eAbstractionObserver]: Analyzing ICFG splice-2.i [2019-09-10 01:45:48,696 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:45:48,705 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:45:48,722 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:45:48,749 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:45:48,749 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:45:48,749 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:45:48,749 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:45:48,750 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:45:48,750 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:45:48,750 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:45:48,750 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:45:48,762 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-09-10 01:45:48,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-10 01:45:48,772 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:45:48,773 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:45:48,775 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:45:48,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:48,780 INFO L82 PathProgramCache]: Analyzing trace with hash 661731879, now seen corresponding path program 1 times [2019-09-10 01:45:48,782 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:45:48,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:48,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:45:48,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:48,841 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:45:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:45:48,926 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 01:45:48,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:45:48,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 01:45:48,929 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:45:48,933 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:45:48,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:45:48,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:45:48,947 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-09-10 01:45:48,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:45:48,969 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2019-09-10 01:45:48,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:45:48,971 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-09-10 01:45:48,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:45:48,980 INFO L225 Difference]: With dead ends: 36 [2019-09-10 01:45:48,980 INFO L226 Difference]: Without dead ends: 27 [2019-09-10 01:45:48,982 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 01:45:49,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-09-10 01:45:49,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-09-10 01:45:49,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-09-10 01:45:49,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2019-09-10 01:45:49,027 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 16 [2019-09-10 01:45:49,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:45:49,027 INFO L475 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2019-09-10 01:45:49,027 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:45:49,028 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2019-09-10 01:45:49,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-10 01:45:49,029 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:45:49,029 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:45:49,029 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:45:49,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:49,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1973627133, now seen corresponding path program 1 times [2019-09-10 01:45:49,030 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:45:49,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:49,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:45:49,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:49,033 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:45:49,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:45:49,167 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 01:45:49,167 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:45:49,168 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 01:45:49,173 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:45:49,175 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:45:49,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:45:49,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:45:49,179 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. Second operand 4 states. [2019-09-10 01:45:49,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:45:49,275 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2019-09-10 01:45:49,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 01:45:49,276 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-09-10 01:45:49,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:45:49,277 INFO L225 Difference]: With dead ends: 37 [2019-09-10 01:45:49,277 INFO L226 Difference]: Without dead ends: 37 [2019-09-10 01:45:49,279 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 01:45:49,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-09-10 01:45:49,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 32. [2019-09-10 01:45:49,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-09-10 01:45:49,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2019-09-10 01:45:49,292 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 18 [2019-09-10 01:45:49,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:45:49,292 INFO L475 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2019-09-10 01:45:49,292 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:45:49,292 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2019-09-10 01:45:49,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-10 01:45:49,294 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:45:49,294 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:45:49,295 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:45:49,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:49,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1721544590, now seen corresponding path program 1 times [2019-09-10 01:45:49,295 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:45:49,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:49,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:45:49,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:49,299 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:45:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:45:49,442 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 01:45:49,443 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:45:49,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 01:45:49,443 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:45:49,444 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:45:49,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:45:49,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:45:49,445 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand 4 states. [2019-09-10 01:45:49,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:45:49,518 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2019-09-10 01:45:49,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 01:45:49,521 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-09-10 01:45:49,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:45:49,523 INFO L225 Difference]: With dead ends: 47 [2019-09-10 01:45:49,524 INFO L226 Difference]: Without dead ends: 43 [2019-09-10 01:45:49,524 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 01:45:49,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-09-10 01:45:49,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2019-09-10 01:45:49,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-09-10 01:45:49,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2019-09-10 01:45:49,531 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 53 transitions. Word has length 20 [2019-09-10 01:45:49,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:45:49,531 INFO L475 AbstractCegarLoop]: Abstraction has 41 states and 53 transitions. [2019-09-10 01:45:49,531 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:45:49,532 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2019-09-10 01:45:49,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-09-10 01:45:49,533 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:45:49,533 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] [2019-09-10 01:45:49,533 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:45:49,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:49,534 INFO L82 PathProgramCache]: Analyzing trace with hash -918584693, now seen corresponding path program 1 times [2019-09-10 01:45:49,534 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:45:49,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:49,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:45:49,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:49,536 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:45:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:45:49,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:45:49,603 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:45:49,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 01:45:49,604 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:45:49,604 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 01:45:49,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 01:45:49,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 01:45:49,605 INFO L87 Difference]: Start difference. First operand 41 states and 53 transitions. Second operand 6 states. [2019-09-10 01:45:49,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:45:49,755 INFO L93 Difference]: Finished difference Result 51 states and 64 transitions. [2019-09-10 01:45:49,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 01:45:49,756 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2019-09-10 01:45:49,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:45:49,757 INFO L225 Difference]: With dead ends: 51 [2019-09-10 01:45:49,757 INFO L226 Difference]: Without dead ends: 47 [2019-09-10 01:45:49,757 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-09-10 01:45:49,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-09-10 01:45:49,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2019-09-10 01:45:49,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-09-10 01:45:49,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2019-09-10 01:45:49,763 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 55 transitions. Word has length 21 [2019-09-10 01:45:49,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:45:49,763 INFO L475 AbstractCegarLoop]: Abstraction has 43 states and 55 transitions. [2019-09-10 01:45:49,764 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 01:45:49,764 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions. [2019-09-10 01:45:49,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-09-10 01:45:49,765 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:45:49,765 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:45:49,765 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:45:49,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:49,766 INFO L82 PathProgramCache]: Analyzing trace with hash -743556192, now seen corresponding path program 1 times [2019-09-10 01:45:49,766 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:45:49,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:49,767 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:45:49,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:49,768 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:45:49,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:45:49,876 ERROR L253 erpolLogProxyWrapper]: Interpolant 13 not inductive: (Check returned sat) [2019-09-10 01:45:49,906 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:969) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:168) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:183) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getTraceCheck(BaseTaipanRefinementStrategy.java:215) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:453) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:371) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-09-10 01:45:49,913 INFO L168 Benchmark]: Toolchain (without parser) took 2726.88 ms. Allocated memory was 142.6 MB in the beginning and 233.3 MB in the end (delta: 90.7 MB). Free memory was 89.2 MB in the beginning and 159.6 MB in the end (delta: -70.4 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-09-10 01:45:49,914 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 142.6 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 01:45:49,916 INFO L168 Benchmark]: CACSL2BoogieTranslator took 675.77 ms. Allocated memory was 142.6 MB in the beginning and 203.4 MB in the end (delta: 60.8 MB). Free memory was 89.0 MB in the beginning and 168.1 MB in the end (delta: -79.2 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2019-09-10 01:45:49,918 INFO L168 Benchmark]: Boogie Preprocessor took 66.28 ms. Allocated memory is still 203.4 MB. Free memory was 168.1 MB in the beginning and 165.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2019-09-10 01:45:49,919 INFO L168 Benchmark]: RCFGBuilder took 724.91 ms. Allocated memory is still 203.4 MB. Free memory was 165.2 MB in the beginning and 120.6 MB in the end (delta: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 7.1 GB. [2019-09-10 01:45:49,921 INFO L168 Benchmark]: TraceAbstraction took 1247.83 ms. Allocated memory was 203.4 MB in the beginning and 233.3 MB in the end (delta: 29.9 MB). Free memory was 120.1 MB in the beginning and 159.6 MB in the end (delta: -39.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 01:45:49,931 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 142.6 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 675.77 ms. Allocated memory was 142.6 MB in the beginning and 203.4 MB in the end (delta: 60.8 MB). Free memory was 89.0 MB in the beginning and 168.1 MB in the end (delta: -79.2 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 66.28 ms. Allocated memory is still 203.4 MB. Free memory was 168.1 MB in the beginning and 165.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 724.91 ms. Allocated memory is still 203.4 MB. Free memory was 165.2 MB in the beginning and 120.6 MB in the end (delta: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1247.83 ms. Allocated memory was 203.4 MB in the beginning and 233.3 MB in the end (delta: 29.9 MB). Free memory was 120.1 MB in the beginning and 159.6 MB in the end (delta: -39.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:969) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...