/usr/bin/java -ea -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-simple-white-blue-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:32:10,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:32:10,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:32:10,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:32:10,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:32:10,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:32:10,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:32:10,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:32:10,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:32:10,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:32:10,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:32:10,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:32:10,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:32:10,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:32:10,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:32:10,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:32:10,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:32:10,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:32:10,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:32:10,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:32:10,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:32:10,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:32:10,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:32:10,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:32:10,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 22:32:10,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 22:32:10,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 22:32:10,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 22:32:10,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 22:32:10,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 22:32:10,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 22:32:10,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 22:32:10,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 22:32:10,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 22:32:10,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 22:32:10,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 22:32:10,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 22:32:10,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 22:32:10,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:32:10,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:32:10,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:32:10,300 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 22:32:10,314 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:32:10,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:32:10,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:32:10,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:32:10,316 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:32:10,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:32:10,316 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:32:10,317 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:32:10,317 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:32:10,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:32:10,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:32:10,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:32:10,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:32:10,318 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:32:10,318 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:32:10,318 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:32:10,318 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:32:10,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:32:10,319 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:32:10,319 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:32:10,319 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:32:10,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:32:10,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:32:10,320 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:32:10,320 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:32:10,320 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:32:10,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:32:10,320 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:32:10,321 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:32:10,321 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:32:10,616 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:32:10,634 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:32:10,637 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:32:10,639 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:32:10,639 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:32:10,640 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-simple-white-blue-2.i [2020-07-17 22:32:10,735 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fc30c3b5/d976fa31c8614a4886a76dc5a3034321/FLAGde48b93a3 [2020-07-17 22:32:11,251 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:32:11,252 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-simple-white-blue-2.i [2020-07-17 22:32:11,279 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fc30c3b5/d976fa31c8614a4886a76dc5a3034321/FLAGde48b93a3 [2020-07-17 22:32:11,550 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fc30c3b5/d976fa31c8614a4886a76dc5a3034321 [2020-07-17 22:32:11,560 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:32:11,563 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:32:11,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:32:11,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:32:11,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:32:11,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:32:11" (1/1) ... [2020-07-17 22:32:11,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48bc879d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:32:11, skipping insertion in model container [2020-07-17 22:32:11,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:32:11" (1/1) ... [2020-07-17 22:32:11,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:32:11,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:32:12,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:32:12,097 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:32:12,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:32:12,245 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:32:12,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:32:12 WrapperNode [2020-07-17 22:32:12,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:32:12,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:32:12,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:32:12,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:32:12,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:32:12" (1/1) ... [2020-07-17 22:32:12,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:32:12" (1/1) ... [2020-07-17 22:32:12,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:32:12" (1/1) ... [2020-07-17 22:32:12,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:32:12" (1/1) ... [2020-07-17 22:32:12,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:32:12" (1/1) ... [2020-07-17 22:32:12,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:32:12" (1/1) ... [2020-07-17 22:32:12,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:32:12" (1/1) ... [2020-07-17 22:32:12,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:32:12,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:32:12,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:32:12,333 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:32:12,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:32:12" (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 [2020-07-17 22:32:12,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:32:12,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:32:12,397 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:32:12,397 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-17 22:32:12,397 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-17 22:32:12,397 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-17 22:32:12,398 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-17 22:32:12,398 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-17 22:32:12,398 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-17 22:32:12,398 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-17 22:32:12,398 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-17 22:32:12,398 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-17 22:32:12,398 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-17 22:32:12,399 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-17 22:32:12,399 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-17 22:32:12,399 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-17 22:32:12,399 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-17 22:32:12,399 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-17 22:32:12,400 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-17 22:32:12,400 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-17 22:32:12,400 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-17 22:32:12,400 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-17 22:32:12,400 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-17 22:32:12,400 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-17 22:32:12,401 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-17 22:32:12,401 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-17 22:32:12,401 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-17 22:32:12,401 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-17 22:32:12,401 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-17 22:32:12,401 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-17 22:32:12,401 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-17 22:32:12,402 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-17 22:32:12,402 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-17 22:32:12,402 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-17 22:32:12,402 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-17 22:32:12,402 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-17 22:32:12,402 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-17 22:32:12,402 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-17 22:32:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-17 22:32:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-17 22:32:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-17 22:32:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-17 22:32:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-17 22:32:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-17 22:32:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-17 22:32:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-17 22:32:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-17 22:32:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-17 22:32:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-17 22:32:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-17 22:32:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-17 22:32:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-17 22:32:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-17 22:32:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 22:32:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-17 22:32:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-17 22:32:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 22:32:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-17 22:32:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-17 22:32:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-17 22:32:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-17 22:32:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-17 22:32:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-17 22:32:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-17 22:32:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-17 22:32:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-17 22:32:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-17 22:32:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-17 22:32:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-17 22:32:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-17 22:32:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-17 22:32:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-17 22:32:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-17 22:32:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-17 22:32:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-17 22:32:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-17 22:32:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-17 22:32:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-17 22:32:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-17 22:32:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-17 22:32:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-17 22:32:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-17 22:32:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-17 22:32:12,409 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-17 22:32:12,409 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-17 22:32:12,409 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-17 22:32:12,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-17 22:32:12,409 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-17 22:32:12,409 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-17 22:32:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-17 22:32:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-17 22:32:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-17 22:32:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-17 22:32:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-17 22:32:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-17 22:32:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-17 22:32:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-17 22:32:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-17 22:32:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-17 22:32:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-17 22:32:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-17 22:32:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-17 22:32:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-17 22:32:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-17 22:32:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-17 22:32:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-17 22:32:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 22:32:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:32:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:32:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 22:32:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 22:32:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 22:32:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 22:32:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 22:32:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 22:32:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:32:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:32:13,128 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:32:13,129 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-17 22:32:13,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:32:13 BoogieIcfgContainer [2020-07-17 22:32:13,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:32:13,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:32:13,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:32:13,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:32:13,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:32:11" (1/3) ... [2020-07-17 22:32:13,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b95828b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:32:13, skipping insertion in model container [2020-07-17 22:32:13,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:32:12" (2/3) ... [2020-07-17 22:32:13,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b95828b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:32:13, skipping insertion in model container [2020-07-17 22:32:13,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:32:13" (3/3) ... [2020-07-17 22:32:13,142 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-simple-white-blue-2.i [2020-07-17 22:32:13,153 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:32:13,161 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:32:13,176 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:32:13,201 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:32:13,201 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:32:13,201 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:32:13,201 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:32:13,202 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:32:13,202 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:32:13,202 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:32:13,202 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:32:13,222 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-07-17 22:32:13,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-17 22:32:13,229 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:32:13,230 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:32:13,230 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:32:13,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:32:13,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1759752198, now seen corresponding path program 1 times [2020-07-17 22:32:13,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:32:13,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207192141] [2020-07-17 22:32:13,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:32:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:32:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:32:13,466 INFO L280 TraceCheckUtils]: 0: Hoare triple {39#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {34#true} is VALID [2020-07-17 22:32:13,467 INFO L280 TraceCheckUtils]: 1: Hoare triple {34#true} assume true; {34#true} is VALID [2020-07-17 22:32:13,467 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {34#true} {34#true} #112#return; {34#true} is VALID [2020-07-17 22:32:13,471 INFO L263 TraceCheckUtils]: 0: Hoare triple {34#true} call ULTIMATE.init(); {39#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-17 22:32:13,472 INFO L280 TraceCheckUtils]: 1: Hoare triple {39#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {34#true} is VALID [2020-07-17 22:32:13,473 INFO L280 TraceCheckUtils]: 2: Hoare triple {34#true} assume true; {34#true} is VALID [2020-07-17 22:32:13,473 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {34#true} {34#true} #112#return; {34#true} is VALID [2020-07-17 22:32:13,474 INFO L263 TraceCheckUtils]: 4: Hoare triple {34#true} call #t~ret19 := main(); {34#true} is VALID [2020-07-17 22:32:13,474 INFO L280 TraceCheckUtils]: 5: Hoare triple {34#true} call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(8);~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset;call write~$Pointer$(0, 0, ~head~0.base, ~head~0.offset, 4);call write~int(0, ~head~0.base, 4 + ~head~0.offset, 4);~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset; {34#true} is VALID [2020-07-17 22:32:13,476 INFO L280 TraceCheckUtils]: 6: Hoare triple {34#true} assume !true; {35#false} is VALID [2020-07-17 22:32:13,476 INFO L280 TraceCheckUtils]: 7: Hoare triple {35#false} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {35#false} is VALID [2020-07-17 22:32:13,476 INFO L280 TraceCheckUtils]: 8: Hoare triple {35#false} assume 0 != #t~nondet4;havoc #t~nondet4;call #t~malloc5.base, #t~malloc5.offset := #Ultimate.allocOnHeap(8);~x~0.base, ~x~0.offset := #t~malloc5.base, #t~malloc5.offset;call write~int(1, ~x~0.base, 4 + ~x~0.offset, 4);call write~$Pointer$(~head~0.base, ~head~0.offset, ~x~0.base, ~x~0.offset, 4);~head~0.base, ~head~0.offset := ~x~0.base, ~x~0.offset; {35#false} is VALID [2020-07-17 22:32:13,477 INFO L280 TraceCheckUtils]: 9: Hoare triple {35#false} ~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset; {35#false} is VALID [2020-07-17 22:32:13,477 INFO L280 TraceCheckUtils]: 10: Hoare triple {35#false} assume !true; {35#false} is VALID [2020-07-17 22:32:13,478 INFO L280 TraceCheckUtils]: 11: Hoare triple {35#false} call #t~mem15.base, #t~mem15.offset := read~$Pointer$(~x~0.base, ~x~0.offset, 4);~x~0.base, ~x~0.offset := #t~mem15.base, #t~mem15.offset;havoc #t~mem15.base, #t~mem15.offset; {35#false} is VALID [2020-07-17 22:32:13,478 INFO L280 TraceCheckUtils]: 12: Hoare triple {35#false} assume !!(~x~0.base != 0 || ~x~0.offset != 0);call #t~mem16 := read~int(~x~0.base, 4 + ~x~0.offset, 4); {35#false} is VALID [2020-07-17 22:32:13,478 INFO L280 TraceCheckUtils]: 13: Hoare triple {35#false} assume 1 != #t~mem16;havoc #t~mem16; {35#false} is VALID [2020-07-17 22:32:13,479 INFO L280 TraceCheckUtils]: 14: Hoare triple {35#false} assume !false; {35#false} is VALID [2020-07-17 22:32:13,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:32:13,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207192141] [2020-07-17 22:32:13,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:32:13,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 22:32:13,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174663509] [2020-07-17 22:32:13,492 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-07-17 22:32:13,496 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:32:13,501 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-17 22:32:13,561 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:32:13,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 22:32:13,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:32:13,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 22:32:13,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 22:32:13,577 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 3 states. [2020-07-17 22:32:13,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:32:13,793 INFO L93 Difference]: Finished difference Result 53 states and 80 transitions. [2020-07-17 22:32:13,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 22:32:13,794 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-07-17 22:32:13,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:32:13,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-17 22:32:13,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2020-07-17 22:32:13,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-17 22:32:13,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2020-07-17 22:32:13,812 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 80 transitions. [2020-07-17 22:32:13,923 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 80 edges. 80 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:32:13,934 INFO L225 Difference]: With dead ends: 53 [2020-07-17 22:32:13,935 INFO L226 Difference]: Without dead ends: 23 [2020-07-17 22:32:13,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 22:32:13,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-07-17 22:32:13,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-07-17 22:32:13,984 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:32:13,984 INFO L82 GeneralOperation]: Start isEquivalent. First operand 23 states. Second operand 23 states. [2020-07-17 22:32:13,985 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 23 states. [2020-07-17 22:32:13,985 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 23 states. [2020-07-17 22:32:13,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:32:13,989 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2020-07-17 22:32:13,989 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2020-07-17 22:32:13,990 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:32:13,990 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:32:13,990 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 23 states. [2020-07-17 22:32:13,990 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 23 states. [2020-07-17 22:32:13,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:32:13,994 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2020-07-17 22:32:13,994 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2020-07-17 22:32:13,995 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:32:13,995 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:32:13,995 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:32:13,995 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:32:13,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-07-17 22:32:13,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2020-07-17 22:32:13,999 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 15 [2020-07-17 22:32:14,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:32:14,000 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2020-07-17 22:32:14,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 22:32:14,000 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2020-07-17 22:32:14,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-17 22:32:14,001 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:32:14,001 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:32:14,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:32:14,002 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:32:14,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:32:14,002 INFO L82 PathProgramCache]: Analyzing trace with hash -666433660, now seen corresponding path program 1 times [2020-07-17 22:32:14,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:32:14,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258546699] [2020-07-17 22:32:14,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:32:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:32:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:32:14,119 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 22:32:14,120 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 22:32:14,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:32:14,152 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-17 22:32:14,152 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:32:14,152 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:32:14,152 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-17 22:32:14,153 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:32:14,153 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:32:14,153 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:32:14,153 WARN L170 areAnnotationChecker]: L995-3 has no Hoare annotation [2020-07-17 22:32:14,153 WARN L170 areAnnotationChecker]: L995-3 has no Hoare annotation [2020-07-17 22:32:14,153 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:32:14,154 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:32:14,154 WARN L170 areAnnotationChecker]: L995-4 has no Hoare annotation [2020-07-17 22:32:14,154 WARN L170 areAnnotationChecker]: L995-1 has no Hoare annotation [2020-07-17 22:32:14,154 WARN L170 areAnnotationChecker]: L995-1 has no Hoare annotation [2020-07-17 22:32:14,154 WARN L170 areAnnotationChecker]: L1005 has no Hoare annotation [2020-07-17 22:32:14,154 WARN L170 areAnnotationChecker]: L1005 has no Hoare annotation [2020-07-17 22:32:14,154 WARN L170 areAnnotationChecker]: L1005-2 has no Hoare annotation [2020-07-17 22:32:14,155 WARN L170 areAnnotationChecker]: L1015-3 has no Hoare annotation [2020-07-17 22:32:14,155 WARN L170 areAnnotationChecker]: L1015-3 has no Hoare annotation [2020-07-17 22:32:14,155 WARN L170 areAnnotationChecker]: L1032-3 has no Hoare annotation [2020-07-17 22:32:14,155 WARN L170 areAnnotationChecker]: L1032-3 has no Hoare annotation [2020-07-17 22:32:14,155 WARN L170 areAnnotationChecker]: L1015-4 has no Hoare annotation [2020-07-17 22:32:14,155 WARN L170 areAnnotationChecker]: L1015-1 has no Hoare annotation [2020-07-17 22:32:14,156 WARN L170 areAnnotationChecker]: L1015-1 has no Hoare annotation [2020-07-17 22:32:14,156 WARN L170 areAnnotationChecker]: L1032-4 has no Hoare annotation [2020-07-17 22:32:14,156 WARN L170 areAnnotationChecker]: L1032-1 has no Hoare annotation [2020-07-17 22:32:14,156 WARN L170 areAnnotationChecker]: L1032-1 has no Hoare annotation [2020-07-17 22:32:14,156 WARN L170 areAnnotationChecker]: L1017 has no Hoare annotation [2020-07-17 22:32:14,156 WARN L170 areAnnotationChecker]: L1017 has no Hoare annotation [2020-07-17 22:32:14,156 WARN L170 areAnnotationChecker]: L1039-2 has no Hoare annotation [2020-07-17 22:32:14,157 WARN L170 areAnnotationChecker]: L1039-2 has no Hoare annotation [2020-07-17 22:32:14,157 WARN L170 areAnnotationChecker]: L1039-2 has no Hoare annotation [2020-07-17 22:32:14,157 WARN L170 areAnnotationChecker]: L1039-3 has no Hoare annotation [2020-07-17 22:32:14,157 WARN L170 areAnnotationChecker]: L1041 has no Hoare annotation [2020-07-17 22:32:14,157 WARN L170 areAnnotationChecker]: L1041 has no Hoare annotation [2020-07-17 22:32:14,157 WARN L170 areAnnotationChecker]: L1048-2 has no Hoare annotation [2020-07-17 22:32:14,157 WARN L170 areAnnotationChecker]: L1048-2 has no Hoare annotation [2020-07-17 22:32:14,158 WARN L170 areAnnotationChecker]: L1048-2 has no Hoare annotation [2020-07-17 22:32:14,158 WARN L170 areAnnotationChecker]: L1042-3 has no Hoare annotation [2020-07-17 22:32:14,158 WARN L170 areAnnotationChecker]: L1042-3 has no Hoare annotation [2020-07-17 22:32:14,158 WARN L170 areAnnotationChecker]: L1042-3 has no Hoare annotation [2020-07-17 22:32:14,158 WARN L170 areAnnotationChecker]: L1042-3 has no Hoare annotation [2020-07-17 22:32:14,158 WARN L170 areAnnotationChecker]: L1041-1 has no Hoare annotation [2020-07-17 22:32:14,159 WARN L170 areAnnotationChecker]: L1048-3 has no Hoare annotation [2020-07-17 22:32:14,159 WARN L170 areAnnotationChecker]: L1042-2 has no Hoare annotation [2020-07-17 22:32:14,159 WARN L170 areAnnotationChecker]: L1042-2 has no Hoare annotation [2020-07-17 22:32:14,159 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:32:14,159 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:32:14,159 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-17 22:32:14,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:32:14 BoogieIcfgContainer [2020-07-17 22:32:14,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:32:14,166 INFO L168 Benchmark]: Toolchain (without parser) took 2603.40 ms. Allocated memory was 135.3 MB in the beginning and 227.0 MB in the end (delta: 91.8 MB). Free memory was 98.8 MB in the beginning and 141.1 MB in the end (delta: -42.3 MB). Peak memory consumption was 49.4 MB. Max. memory is 7.1 GB. [2020-07-17 22:32:14,166 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 135.3 MB. Free memory is still 118.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 22:32:14,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 682.36 ms. Allocated memory was 135.3 MB in the beginning and 199.8 MB in the end (delta: 64.5 MB). Free memory was 98.4 MB in the beginning and 165.3 MB in the end (delta: -66.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2020-07-17 22:32:14,168 INFO L168 Benchmark]: Boogie Preprocessor took 85.84 ms. Allocated memory is still 199.8 MB. Free memory was 165.3 MB in the beginning and 162.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2020-07-17 22:32:14,169 INFO L168 Benchmark]: RCFGBuilder took 799.52 ms. Allocated memory is still 199.8 MB. Free memory was 162.1 MB in the beginning and 104.5 MB in the end (delta: 57.5 MB). Peak memory consumption was 57.5 MB. Max. memory is 7.1 GB. [2020-07-17 22:32:14,170 INFO L168 Benchmark]: TraceAbstraction took 1028.48 ms. Allocated memory was 199.8 MB in the beginning and 227.0 MB in the end (delta: 27.3 MB). Free memory was 103.5 MB in the beginning and 141.1 MB in the end (delta: -37.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 22:32:14,174 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 135.3 MB. Free memory is still 118.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 682.36 ms. Allocated memory was 135.3 MB in the beginning and 199.8 MB in the end (delta: 64.5 MB). Free memory was 98.4 MB in the beginning and 165.3 MB in the end (delta: -66.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.84 ms. Allocated memory is still 199.8 MB. Free memory was 165.3 MB in the beginning and 162.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 799.52 ms. Allocated memory is still 199.8 MB. Free memory was 162.1 MB in the beginning and 104.5 MB in the end (delta: 57.5 MB). Peak memory consumption was 57.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1028.48 ms. Allocated memory was 199.8 MB in the beginning and 227.0 MB in the end (delta: 27.3 MB). Free memory was 103.5 MB in the beginning and 141.1 MB in the end (delta: -37.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1042]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L988] SLL* head = malloc(sizeof(SLL)); [L989] head->next = ((void*)0) [L990] head->data = 0 [L992] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L995] COND FALSE !(__VERIFIER_nondet_int()) [L1005] COND TRUE __VERIFIER_nondet_int() [L1006] x = malloc(sizeof(SLL)) [L1007] x->data = 1 [L1008] x->next = head [L1009] head = x VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}] [L1029] x = head VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}] [L1032] EXPR x->data VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}, x->data=1] [L1032] COND FALSE !(x->data != 1) [L1038] EXPR x->next [L1038] x = x->next [L1039] COND TRUE \read(*x) [L1041] EXPR x->data VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=0] [L1041] COND TRUE x->data != 1 [L1042] __VERIFIER_error() VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 34 SDtfs, 0 SDslu, 4 SDs, 0 SdLazy, 32 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 322 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...