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/forester-heap/sll-buckets-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:28:50,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:28:50,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:28:50,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:28:50,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:28:50,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:28:50,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:28:50,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:28:50,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:28:50,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:28:50,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:28:50,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:28:50,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:28:50,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:28:50,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:28:50,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:28:50,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:28:50,411 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:28:50,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:28:50,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:28:50,419 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:28:50,421 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:28:50,422 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:28:50,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:28:50,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:28:50,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:28:50,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:28:50,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:28:50,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:28:50,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:28:50,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:28:50,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:28:50,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:28:50,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:28:50,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:28:50,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:28:50,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:28:50,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:28:50,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:28:50,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:28:50,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:28:50,445 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:28:50,465 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:28:50,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:28:50,466 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:28:50,466 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:28:50,467 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:28:50,467 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:28:50,467 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:28:50,468 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:28:50,468 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:28:50,468 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:28:50,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:28:50,469 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:28:50,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:28:50,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:28:50,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:28:50,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:28:50,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:28:50,470 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:28:50,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:28:50,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:28:50,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:28:50,471 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:28:50,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:28:50,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:28:50,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:28:50,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:28:50,472 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:28:50,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:28:50,472 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:28:50,473 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:28:50,502 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:28:50,515 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:28:50,519 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:28:50,520 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:28:50,521 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:28:50,522 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-buckets-1.i [2019-09-20 13:28:50,590 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26d853762/1606cfecfdda48b5ad76a4f320d679e6/FLAG1dff306a2 [2019-09-20 13:28:51,053 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:28:51,053 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-buckets-1.i [2019-09-20 13:28:51,065 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26d853762/1606cfecfdda48b5ad76a4f320d679e6/FLAG1dff306a2 [2019-09-20 13:28:51,423 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26d853762/1606cfecfdda48b5ad76a4f320d679e6 [2019-09-20 13:28:51,435 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:28:51,437 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:28:51,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:51,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:28:51,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:28:51,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:51" (1/1) ... [2019-09-20 13:28:51,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ab3a841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:51, skipping insertion in model container [2019-09-20 13:28:51,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:51" (1/1) ... [2019-09-20 13:28:51,451 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:28:51,498 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:28:51,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:51,889 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:28:51,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:51,996 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:28:51,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:51 WrapperNode [2019-09-20 13:28:51,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:51,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:28:51,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:28:51,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:28:52,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:51" (1/1) ... [2019-09-20 13:28:52,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:51" (1/1) ... [2019-09-20 13:28:52,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:51" (1/1) ... [2019-09-20 13:28:52,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:51" (1/1) ... [2019-09-20 13:28:52,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:51" (1/1) ... [2019-09-20 13:28:52,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:51" (1/1) ... [2019-09-20 13:28:52,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:51" (1/1) ... [2019-09-20 13:28:52,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:28:52,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:28:52,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:28:52,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:28:52,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:28:52,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:28:52,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:28:52,130 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:28:52,130 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-20 13:28:52,130 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-20 13:28:52,130 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-20 13:28:52,130 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-20 13:28:52,130 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-20 13:28:52,130 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-20 13:28:52,131 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-20 13:28:52,131 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-20 13:28:52,131 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-20 13:28:52,131 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-20 13:28:52,131 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-20 13:28:52,131 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-20 13:28:52,132 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-20 13:28:52,132 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-20 13:28:52,132 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-20 13:28:52,132 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-20 13:28:52,132 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-20 13:28:52,132 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-20 13:28:52,133 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-20 13:28:52,133 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-20 13:28:52,133 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-20 13:28:52,133 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-20 13:28:52,133 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-20 13:28:52,133 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-20 13:28:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-20 13:28:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-20 13:28:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-20 13:28:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-20 13:28:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-20 13:28:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-20 13:28:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-20 13:28:52,135 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-20 13:28:52,135 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-20 13:28:52,135 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-20 13:28:52,135 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-20 13:28:52,135 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-20 13:28:52,135 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-20 13:28:52,135 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-20 13:28:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-20 13:28:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-20 13:28:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-20 13:28:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-20 13:28:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-20 13:28:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-20 13:28:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-20 13:28:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-20 13:28:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-20 13:28:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-20 13:28:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-20 13:28:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-20 13:28:52,138 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:28:52,138 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-20 13:28:52,138 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-20 13:28:52,138 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:28:52,138 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-20 13:28:52,138 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-20 13:28:52,138 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-20 13:28:52,139 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-20 13:28:52,139 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-20 13:28:52,139 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-20 13:28:52,139 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-20 13:28:52,139 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-20 13:28:52,139 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-20 13:28:52,140 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-20 13:28:52,140 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-20 13:28:52,140 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-20 13:28:52,140 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-20 13:28:52,140 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-20 13:28:52,140 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-20 13:28:52,140 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-20 13:28:52,141 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-20 13:28:52,141 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-20 13:28:52,141 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-20 13:28:52,141 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-20 13:28:52,141 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-20 13:28:52,141 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-20 13:28:52,142 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-20 13:28:52,142 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-20 13:28:52,142 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-20 13:28:52,142 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-20 13:28:52,142 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-20 13:28:52,142 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-20 13:28:52,142 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-20 13:28:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-20 13:28:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-20 13:28:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-20 13:28:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-20 13:28:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-20 13:28:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-20 13:28:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-20 13:28:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-20 13:28:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-20 13:28:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-20 13:28:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-20 13:28:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-20 13:28:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-20 13:28:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-20 13:28:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-20 13:28:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-20 13:28:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-20 13:28:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-20 13:28:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-20 13:28:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-20 13:28:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:28:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:28:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:28:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:28:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:28:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:28:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:28:52,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:28:52,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:28:52,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:28:52,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:28:52,885 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:28:52,885 INFO L283 CfgBuilder]: Removed 15 assume(true) statements. [2019-09-20 13:28:52,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:52 BoogieIcfgContainer [2019-09-20 13:28:52,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:28:52,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:28:52,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:28:52,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:28:52,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:28:51" (1/3) ... [2019-09-20 13:28:52,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc1a092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:28:52, skipping insertion in model container [2019-09-20 13:28:52,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:51" (2/3) ... [2019-09-20 13:28:52,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc1a092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:28:52, skipping insertion in model container [2019-09-20 13:28:52,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:52" (3/3) ... [2019-09-20 13:28:52,895 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-buckets-1.i [2019-09-20 13:28:52,902 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:28:52,910 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-09-20 13:28:52,927 INFO L252 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-09-20 13:28:52,955 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:28:52,955 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:28:52,955 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:28:52,955 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:28:52,956 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:28:52,956 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:28:52,956 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:28:52,956 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:28:52,972 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2019-09-20 13:28:52,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-20 13:28:52,983 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:52,984 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:52,986 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:52,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:52,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1374691092, now seen corresponding path program 1 times [2019-09-20 13:28:52,995 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:53,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:53,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:53,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:53,062 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:53,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:28:53,249 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:53,249 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:28:53,250 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:53,255 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:28:53,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:28:53,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:28:53,273 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 4 states. [2019-09-20 13:28:53,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:53,378 INFO L93 Difference]: Finished difference Result 67 states and 81 transitions. [2019-09-20 13:28:53,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:28:53,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-09-20 13:28:53,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:53,390 INFO L225 Difference]: With dead ends: 67 [2019-09-20 13:28:53,390 INFO L226 Difference]: Without dead ends: 62 [2019-09-20 13:28:53,392 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:28:53,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-09-20 13:28:53,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 40. [2019-09-20 13:28:53,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-09-20 13:28:53,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2019-09-20 13:28:53,432 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 12 [2019-09-20 13:28:53,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:53,433 INFO L475 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2019-09-20 13:28:53,433 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:28:53,433 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2019-09-20 13:28:53,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-20 13:28:53,434 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:53,434 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:53,434 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:53,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:53,435 INFO L82 PathProgramCache]: Analyzing trace with hash 370514649, now seen corresponding path program 1 times [2019-09-20 13:28:53,435 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:53,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:53,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:53,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:53,440 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:53,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:53,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:28:53,558 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:53,558 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:28:53,559 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:53,560 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:28:53,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:28:53,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:28:53,560 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 3 states. [2019-09-20 13:28:53,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:53,601 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2019-09-20 13:28:53,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:28:53,601 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-09-20 13:28:53,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:53,602 INFO L225 Difference]: With dead ends: 42 [2019-09-20 13:28:53,603 INFO L226 Difference]: Without dead ends: 42 [2019-09-20 13:28:53,603 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:28:53,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-09-20 13:28:53,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2019-09-20 13:28:53,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-09-20 13:28:53,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2019-09-20 13:28:53,609 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 13 [2019-09-20 13:28:53,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:53,609 INFO L475 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2019-09-20 13:28:53,609 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:28:53,610 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2019-09-20 13:28:53,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-20 13:28:53,610 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:53,610 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:53,611 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:53,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:53,611 INFO L82 PathProgramCache]: Analyzing trace with hash 334257712, now seen corresponding path program 1 times [2019-09-20 13:28:53,611 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:53,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:53,615 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:53,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:53,615 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:53,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:53,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:28:53,688 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:53,688 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:28:53,688 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:53,688 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:28:53,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:28:53,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:28:53,689 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand 3 states. [2019-09-20 13:28:53,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:53,772 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2019-09-20 13:28:53,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:28:53,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-09-20 13:28:53,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:53,774 INFO L225 Difference]: With dead ends: 40 [2019-09-20 13:28:53,774 INFO L226 Difference]: Without dead ends: 40 [2019-09-20 13:28:53,775 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:28:53,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-09-20 13:28:53,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2019-09-20 13:28:53,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-09-20 13:28:53,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2019-09-20 13:28:53,782 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 13 [2019-09-20 13:28:53,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:53,783 INFO L475 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2019-09-20 13:28:53,783 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:28:53,783 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2019-09-20 13:28:53,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-09-20 13:28:53,784 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:53,785 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:53,785 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:53,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:53,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1398911794, now seen corresponding path program 1 times [2019-09-20 13:28:53,785 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:53,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:53,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:53,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:53,792 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:53,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:53,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:28:53,982 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:53,982 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:28:53,982 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:53,983 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:28:53,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:28:53,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:28:53,984 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 5 states. [2019-09-20 13:28:54,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:54,150 INFO L93 Difference]: Finished difference Result 46 states and 57 transitions. [2019-09-20 13:28:54,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:28:54,150 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-09-20 13:28:54,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:54,153 INFO L225 Difference]: With dead ends: 46 [2019-09-20 13:28:54,153 INFO L226 Difference]: Without dead ends: 46 [2019-09-20 13:28:54,154 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:28:54,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-09-20 13:28:54,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2019-09-20 13:28:54,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-09-20 13:28:54,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2019-09-20 13:28:54,160 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 14 [2019-09-20 13:28:54,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:54,160 INFO L475 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2019-09-20 13:28:54,160 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:28:54,161 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2019-09-20 13:28:54,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-20 13:28:54,162 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:54,162 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:54,162 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:54,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:54,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1155909333, now seen corresponding path program 1 times [2019-09-20 13:28:54,163 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:54,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:54,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:54,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:54,167 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:54,574 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:28:54,574 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:28:54,574 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:28:54,575 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2019-09-20 13:28:54,577 INFO L207 CegarAbsIntRunner]: [0], [1], [2], [7], [10], [113], [122], [129], [131], [135], [138], [139], [163], [191], [196], [197], [198] [2019-09-20 13:28:54,625 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:28:54,625 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:28:54,707 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:28:54,709 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 43 variables. [2019-09-20 13:28:54,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:54,713 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:28:54,744 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-09-20 13:28:54,744 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:28:54,745 INFO L420 sIntCurrentIteration]: We unified 17 AI predicates to 17 [2019-09-20 13:28:54,746 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:28:54,746 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:28:54,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-20 13:28:54,747 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:54,747 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:28:54,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:28:54,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:28:54,748 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 2 states. [2019-09-20 13:28:54,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:54,749 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-09-20 13:28:54,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:28:54,749 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-09-20 13:28:54,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:54,749 INFO L225 Difference]: With dead ends: 6 [2019-09-20 13:28:54,749 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:28:54,750 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:28:54,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:28:54,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:28:54,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:28:54,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:28:54,751 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-09-20 13:28:54,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:54,751 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:28:54,751 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:28:54,751 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:28:54,752 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:28:54,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:28:54 BoogieIcfgContainer [2019-09-20 13:28:54,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:28:54,759 INFO L168 Benchmark]: Toolchain (without parser) took 3321.61 ms. Allocated memory was 130.0 MB in the beginning and 216.0 MB in the end (delta: 86.0 MB). Free memory was 84.0 MB in the beginning and 74.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 95.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:54,760 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 130.0 MB. Free memory was 104.2 MB in the beginning and 104.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:28:54,762 INFO L168 Benchmark]: CACSL2BoogieTranslator took 559.11 ms. Allocated memory was 130.0 MB in the beginning and 197.7 MB in the end (delta: 67.6 MB). Free memory was 83.8 MB in the beginning and 161.4 MB in the end (delta: -77.6 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:54,762 INFO L168 Benchmark]: Boogie Preprocessor took 70.01 ms. Allocated memory is still 197.7 MB. Free memory was 161.4 MB in the beginning and 158.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:54,763 INFO L168 Benchmark]: RCFGBuilder took 819.45 ms. Allocated memory is still 197.7 MB. Free memory was 158.1 MB in the beginning and 103.5 MB in the end (delta: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:54,764 INFO L168 Benchmark]: TraceAbstraction took 1868.96 ms. Allocated memory was 197.7 MB in the beginning and 216.0 MB in the end (delta: 18.4 MB). Free memory was 102.9 MB in the beginning and 74.7 MB in the end (delta: 28.2 MB). Peak memory consumption was 46.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:54,769 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 130.0 MB. Free memory was 104.2 MB in the beginning and 104.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 559.11 ms. Allocated memory was 130.0 MB in the beginning and 197.7 MB in the end (delta: 67.6 MB). Free memory was 83.8 MB in the beginning and 161.4 MB in the end (delta: -77.6 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.01 ms. Allocated memory is still 197.7 MB. Free memory was 161.4 MB in the beginning and 158.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 819.45 ms. Allocated memory is still 197.7 MB. Free memory was 158.1 MB in the beginning and 103.5 MB in the end (delta: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1868.96 ms. Allocated memory was 197.7 MB in the beginning and 216.0 MB in the end (delta: 18.4 MB). Free memory was 102.9 MB in the beginning and 74.7 MB in the end (delta: 28.2 MB). Peak memory consumption was 46.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1024]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1023]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1050]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1027]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1053]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 49 locations, 5 error locations. SAFE Result, 1.8s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 153 SDtfs, 128 SDslu, 151 SDs, 0 SdLazy, 110 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.7352941176470589 AbsIntWeakeningRatio, 2.3529411764705883 AbsIntAvgWeakeningVarsNumRemoved, 0.35294117647058826 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 35 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 11289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 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...