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 0.1.24-112bae1 [2019-09-10 01:47:13,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:47:13,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:47:13,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:47:13,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:47:13,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:47:13,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:47:13,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:47:13,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:47:13,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:47:13,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:47:13,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:47:13,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:47:13,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:47:13,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:47:13,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:47:13,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:47:13,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:47:13,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:47:13,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:47:13,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:47:13,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:47:13,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:47:13,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:47:13,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:47:13,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:47:13,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:47:13,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:47:13,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:47:13,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:47:13,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:47:13,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:47:13,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:47:13,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:47:13,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:47:13,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:47:13,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:47:13,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:47:13,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:47:13,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:47:13,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:47:13,567 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 01:47:13,583 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:47:13,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:47:13,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:47:13,584 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:47:13,584 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:47:13,584 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:47:13,585 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:47:13,585 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:47:13,585 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:47:13,585 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:47:13,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:47:13,586 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:47:13,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:47:13,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:47:13,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:47:13,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:47:13,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:47:13,587 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:47:13,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:47:13,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:47:13,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:47:13,590 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:47:13,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:47:13,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:47:13,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:47:13,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:47:13,591 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:47:13,592 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:47:13,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:47:13,592 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:47:13,633 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:47:13,645 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:47:13,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:47:13,650 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:47:13,650 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:47:13,651 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-buckets-1.i [2019-09-10 01:47:13,718 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbe16a71b/98d4a65a89f44e2d9772e98d081e04c6/FLAGbc00fa626 [2019-09-10 01:47:14,253 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:47:14,253 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-buckets-1.i [2019-09-10 01:47:14,267 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbe16a71b/98d4a65a89f44e2d9772e98d081e04c6/FLAGbc00fa626 [2019-09-10 01:47:14,569 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbe16a71b/98d4a65a89f44e2d9772e98d081e04c6 [2019-09-10 01:47:14,581 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:47:14,582 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:47:14,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:47:14,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:47:14,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:47:14,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:47:14" (1/1) ... [2019-09-10 01:47:14,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7330d48b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:14, skipping insertion in model container [2019-09-10 01:47:14,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:47:14" (1/1) ... [2019-09-10 01:47:14,599 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:47:14,657 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:47:15,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:47:15,122 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:47:15,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:47:15,233 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:47:15,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:15 WrapperNode [2019-09-10 01:47:15,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:47:15,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:47:15,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:47:15,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:47:15,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:15" (1/1) ... [2019-09-10 01:47:15,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:15" (1/1) ... [2019-09-10 01:47:15,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:15" (1/1) ... [2019-09-10 01:47:15,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:15" (1/1) ... [2019-09-10 01:47:15,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:15" (1/1) ... [2019-09-10 01:47:15,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:15" (1/1) ... [2019-09-10 01:47:15,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:15" (1/1) ... [2019-09-10 01:47:15,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:47:15,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:47:15,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:47:15,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:47:15,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:15" (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 01:47:15,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:47:15,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:47:15,349 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:47:15,350 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-10 01:47:15,350 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-10 01:47:15,350 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-10 01:47:15,350 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-10 01:47:15,350 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-10 01:47:15,350 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-10 01:47:15,351 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-10 01:47:15,351 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-10 01:47:15,351 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-10 01:47:15,351 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-10 01:47:15,351 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-10 01:47:15,351 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-10 01:47:15,352 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-10 01:47:15,352 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-10 01:47:15,352 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-10 01:47:15,352 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-10 01:47:15,352 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-10 01:47:15,352 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-10 01:47:15,353 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-10 01:47:15,353 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-10 01:47:15,353 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-10 01:47:15,353 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-10 01:47:15,353 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-10 01:47:15,353 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-10 01:47:15,354 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-10 01:47:15,354 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-10 01:47:15,354 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-10 01:47:15,354 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-10 01:47:15,354 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-10 01:47:15,354 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-10 01:47:15,354 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-10 01:47:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-10 01:47:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-10 01:47:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-10 01:47:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-10 01:47:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-10 01:47:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-10 01:47:15,356 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-10 01:47:15,356 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-10 01:47:15,356 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-10 01:47:15,356 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-10 01:47:15,356 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-10 01:47:15,356 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-10 01:47:15,356 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-10 01:47:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-10 01:47:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-10 01:47:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-10 01:47:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-10 01:47:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-10 01:47:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-10 01:47:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 01:47:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 01:47:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-10 01:47:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 01:47:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-10 01:47:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-10 01:47:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-10 01:47:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-10 01:47:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-10 01:47:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-10 01:47:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-10 01:47:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-10 01:47:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-10 01:47:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 01:47:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-10 01:47:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-10 01:47:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-10 01:47:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-10 01:47:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-10 01:47:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-10 01:47:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-10 01:47:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-10 01:47:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-10 01:47:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-10 01:47:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-10 01:47:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-10 01:47:15,362 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-10 01:47:15,362 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-10 01:47:15,362 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-10 01:47:15,362 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-10 01:47:15,362 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-10 01:47:15,362 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-10 01:47:15,363 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-10 01:47:15,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-10 01:47:15,363 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-10 01:47:15,363 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-10 01:47:15,363 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-10 01:47:15,363 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-10 01:47:15,364 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-10 01:47:15,364 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-10 01:47:15,364 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-10 01:47:15,364 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-10 01:47:15,364 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-10 01:47:15,364 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-10 01:47:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-10 01:47:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-10 01:47:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-10 01:47:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-10 01:47:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-10 01:47:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-10 01:47:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-10 01:47:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-10 01:47:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-10 01:47:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 01:47:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:47:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:47:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 01:47:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:47:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 01:47:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 01:47:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:47:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:47:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:47:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:47:16,074 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:47:16,075 INFO L283 CfgBuilder]: Removed 15 assume(true) statements. [2019-09-10 01:47:16,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:47:16 BoogieIcfgContainer [2019-09-10 01:47:16,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:47:16,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:47:16,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:47:16,080 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:47:16,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:47:14" (1/3) ... [2019-09-10 01:47:16,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31429675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:47:16, skipping insertion in model container [2019-09-10 01:47:16,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:15" (2/3) ... [2019-09-10 01:47:16,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31429675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:47:16, skipping insertion in model container [2019-09-10 01:47:16,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:47:16" (3/3) ... [2019-09-10 01:47:16,084 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-buckets-1.i [2019-09-10 01:47:16,094 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:47:16,102 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-09-10 01:47:16,120 INFO L252 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-09-10 01:47:16,147 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:47:16,147 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:47:16,148 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:47:16,148 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:47:16,148 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:47:16,148 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:47:16,149 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:47:16,149 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:47:16,165 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2019-09-10 01:47:16,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-10 01:47:16,175 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:16,177 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:16,179 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:16,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:16,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1374691092, now seen corresponding path program 1 times [2019-09-10 01:47:16,188 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:16,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:16,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:16,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:16,248 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:16,450 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 01:47:16,453 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:16,453 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 01:47:16,454 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:16,459 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:47:16,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:47:16,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:47:16,477 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 4 states. [2019-09-10 01:47:16,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:16,583 INFO L93 Difference]: Finished difference Result 67 states and 81 transitions. [2019-09-10 01:47:16,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 01:47:16,585 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-09-10 01:47:16,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:16,600 INFO L225 Difference]: With dead ends: 67 [2019-09-10 01:47:16,600 INFO L226 Difference]: Without dead ends: 62 [2019-09-10 01:47:16,603 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 01:47:16,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-09-10 01:47:16,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 40. [2019-09-10 01:47:16,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-09-10 01:47:16,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2019-09-10 01:47:16,658 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 12 [2019-09-10 01:47:16,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:16,659 INFO L475 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2019-09-10 01:47:16,659 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:47:16,659 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2019-09-10 01:47:16,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-10 01:47:16,662 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:16,662 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:16,662 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:16,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:16,664 INFO L82 PathProgramCache]: Analyzing trace with hash 370514649, now seen corresponding path program 1 times [2019-09-10 01:47:16,665 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:16,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:16,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:16,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:16,668 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:16,830 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 01:47:16,830 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:16,830 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 01:47:16,830 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:16,834 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 01:47:16,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 01:47:16,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 01:47:16,835 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 3 states. [2019-09-10 01:47:16,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:16,882 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2019-09-10 01:47:16,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 01:47:16,883 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-09-10 01:47:16,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:16,884 INFO L225 Difference]: With dead ends: 42 [2019-09-10 01:47:16,884 INFO L226 Difference]: Without dead ends: 42 [2019-09-10 01:47:16,885 INFO L628 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 [2019-09-10 01:47:16,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-09-10 01:47:16,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2019-09-10 01:47:16,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-09-10 01:47:16,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2019-09-10 01:47:16,894 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 13 [2019-09-10 01:47:16,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:16,895 INFO L475 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2019-09-10 01:47:16,897 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 01:47:16,897 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2019-09-10 01:47:16,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-10 01:47:16,899 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:16,899 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:16,899 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:16,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:16,899 INFO L82 PathProgramCache]: Analyzing trace with hash 334257712, now seen corresponding path program 1 times [2019-09-10 01:47:16,900 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:16,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:16,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:16,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:16,902 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:16,989 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 01:47:16,990 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:16,990 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 01:47:16,990 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:16,991 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 01:47:16,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 01:47:16,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 01:47:16,991 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand 3 states. [2019-09-10 01:47:17,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:17,062 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2019-09-10 01:47:17,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 01:47:17,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-09-10 01:47:17,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:17,064 INFO L225 Difference]: With dead ends: 40 [2019-09-10 01:47:17,064 INFO L226 Difference]: Without dead ends: 40 [2019-09-10 01:47:17,064 INFO L628 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 [2019-09-10 01:47:17,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-09-10 01:47:17,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2019-09-10 01:47:17,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-09-10 01:47:17,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2019-09-10 01:47:17,069 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 13 [2019-09-10 01:47:17,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:17,069 INFO L475 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2019-09-10 01:47:17,070 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 01:47:17,070 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2019-09-10 01:47:17,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-09-10 01:47:17,070 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:17,071 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:17,071 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:17,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:17,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1398911794, now seen corresponding path program 1 times [2019-09-10 01:47:17,072 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:17,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:17,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:17,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:17,074 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:17,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:17,220 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 01:47:17,221 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:17,221 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 01:47:17,221 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:17,221 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 01:47:17,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 01:47:17,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 01:47:17,222 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 5 states. [2019-09-10 01:47:17,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:17,399 INFO L93 Difference]: Finished difference Result 46 states and 57 transitions. [2019-09-10 01:47:17,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 01:47:17,399 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-09-10 01:47:17,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:17,402 INFO L225 Difference]: With dead ends: 46 [2019-09-10 01:47:17,402 INFO L226 Difference]: Without dead ends: 46 [2019-09-10 01:47:17,403 INFO L628 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 [2019-09-10 01:47:17,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-09-10 01:47:17,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2019-09-10 01:47:17,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-09-10 01:47:17,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2019-09-10 01:47:17,409 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 14 [2019-09-10 01:47:17,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:17,409 INFO L475 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2019-09-10 01:47:17,409 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 01:47:17,409 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2019-09-10 01:47:17,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-10 01:47:17,410 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:17,410 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:17,411 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:17,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:17,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1155909333, now seen corresponding path program 1 times [2019-09-10 01:47:17,411 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:17,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:17,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:17,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:17,413 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:17,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:47:17,779 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:47:17,779 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 01:47:17,780 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2019-09-10 01:47:17,782 INFO L207 CegarAbsIntRunner]: [0], [1], [2], [7], [10], [113], [122], [129], [131], [135], [138], [139], [163], [191], [196], [197], [198] [2019-09-10 01:47:17,827 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 01:47:17,828 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 01:47:17,937 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 01:47:17,939 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. [2019-09-10 01:47:17,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:17,946 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 01:47:17,983 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-09-10 01:47:17,983 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 01:47:17,985 INFO L420 sIntCurrentIteration]: We unified 17 AI predicates to 17 [2019-09-10 01:47:17,985 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 01:47:17,986 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 01:47:17,986 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2019-09-10 01:47:17,986 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:17,986 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:47:17,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:47:17,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:47:17,987 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 2 states. [2019-09-10 01:47:17,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:17,988 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-09-10 01:47:17,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:47:17,989 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-09-10 01:47:17,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:17,989 INFO L225 Difference]: With dead ends: 6 [2019-09-10 01:47:17,989 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 01:47:17,990 INFO L628 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 [2019-09-10 01:47:17,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 01:47:17,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 01:47:17,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 01:47:17,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 01:47:17,991 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-09-10 01:47:17,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:17,991 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 01:47:17,991 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:47:17,991 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 01:47:17,991 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 01:47:17,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:47:17 BoogieIcfgContainer [2019-09-10 01:47:17,997 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:47:18,000 INFO L168 Benchmark]: Toolchain (without parser) took 3416.17 ms. Allocated memory was 131.6 MB in the beginning and 221.2 MB in the end (delta: 89.7 MB). Free memory was 86.5 MB in the beginning and 86.7 MB in the end (delta: -170.3 kB). Peak memory consumption was 89.5 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:18,002 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 131.6 MB. Free memory was 106.1 MB in the beginning and 105.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:47:18,004 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.85 ms. Allocated memory was 131.6 MB in the beginning and 199.8 MB in the end (delta: 68.2 MB). Free memory was 86.1 MB in the beginning and 163.3 MB in the end (delta: -77.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:18,006 INFO L168 Benchmark]: Boogie Preprocessor took 63.03 ms. Allocated memory is still 199.8 MB. Free memory was 163.3 MB in the beginning and 160.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:18,008 INFO L168 Benchmark]: RCFGBuilder took 777.80 ms. Allocated memory is still 199.8 MB. Free memory was 160.1 MB in the beginning and 106.4 MB in the end (delta: 53.6 MB). Peak memory consumption was 53.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:18,009 INFO L168 Benchmark]: TraceAbstraction took 1920.06 ms. Allocated memory was 199.8 MB in the beginning and 221.2 MB in the end (delta: 21.5 MB). Free memory was 106.4 MB in the beginning and 86.7 MB in the end (delta: 19.8 MB). Peak memory consumption was 41.3 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:18,019 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 131.6 MB. Free memory was 106.1 MB in the beginning and 105.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 650.85 ms. Allocated memory was 131.6 MB in the beginning and 199.8 MB in the end (delta: 68.2 MB). Free memory was 86.1 MB in the beginning and 163.3 MB in the end (delta: -77.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 63.03 ms. Allocated memory is still 199.8 MB. Free memory was 163.3 MB in the beginning and 160.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 777.80 ms. Allocated memory is still 199.8 MB. Free memory was 160.1 MB in the beginning and 106.4 MB in the end (delta: 53.6 MB). Peak memory consumption was 53.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1920.06 ms. Allocated memory was 199.8 MB in the beginning and 221.2 MB in the end (delta: 21.5 MB). Free memory was 106.4 MB in the beginning and 86.7 MB in the end (delta: 19.8 MB). Peak memory consumption was 41.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - PositiveResult [Line: 1023]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1024]: 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 - 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, 10830 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...