/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-rb-cnstr_1-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 16:25:24,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 16:25:24,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 16:25:24,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 16:25:24,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 16:25:24,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 16:25:24,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 16:25:24,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 16:25:24,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 16:25:24,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 16:25:24,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 16:25:24,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 16:25:24,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 16:25:24,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 16:25:24,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 16:25:24,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 16:25:24,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 16:25:24,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 16:25:24,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 16:25:24,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 16:25:24,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 16:25:24,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 16:25:24,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 16:25:24,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 16:25:24,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-08 16:25:24,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-08 16:25:24,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-08 16:25:24,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-08 16:25:24,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-08 16:25:24,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-08 16:25:24,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 16:25:24,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 16:25:24,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 16:25:24,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 16:25:24,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 16:25:24,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 16:25:24,305 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 16:25:24,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 16:25:24,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 16:25:24,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 16:25:24,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 16:25:24,308 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 16:25:24,318 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 16:25:24,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 16:25:24,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 16:25:24,320 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 16:25:24,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 16:25:24,320 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 16:25:24,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 16:25:24,320 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 16:25:24,321 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 16:25:24,321 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 16:25:24,321 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 16:25:24,321 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 16:25:24,321 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 16:25:24,322 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 16:25:24,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 16:25:24,322 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 16:25:24,322 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 16:25:24,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 16:25:24,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 16:25:24,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 16:25:24,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 16:25:24,323 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 16:25:24,324 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-08 16:25:24,645 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 16:25:24,660 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 16:25:24,664 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 16:25:24,665 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 16:25:24,666 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 16:25:24,666 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-rb-cnstr_1-2.i [2020-07-08 16:25:24,749 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/241269bd7/614d2ab150d54f80881e9f408616f860/FLAGcba4eb737 [2020-07-08 16:25:25,320 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 16:25:25,321 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-cnstr_1-2.i [2020-07-08 16:25:25,335 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/241269bd7/614d2ab150d54f80881e9f408616f860/FLAGcba4eb737 [2020-07-08 16:25:25,617 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/241269bd7/614d2ab150d54f80881e9f408616f860 [2020-07-08 16:25:25,627 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 16:25:25,628 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 16:25:25,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 16:25:25,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 16:25:25,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 16:25:25,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:25:25" (1/1) ... [2020-07-08 16:25:25,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ec9957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:25, skipping insertion in model container [2020-07-08 16:25:25,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:25:25" (1/1) ... [2020-07-08 16:25:25,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 16:25:25,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 16:25:26,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:25:26,227 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 16:25:26,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:25:26,372 INFO L208 MainTranslator]: Completed translation [2020-07-08 16:25:26,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:26 WrapperNode [2020-07-08 16:25:26,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 16:25:26,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 16:25:26,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 16:25:26,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 16:25:26,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:26" (1/1) ... [2020-07-08 16:25:26,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:26" (1/1) ... [2020-07-08 16:25:26,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:26" (1/1) ... [2020-07-08 16:25:26,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:26" (1/1) ... [2020-07-08 16:25:26,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:26" (1/1) ... [2020-07-08 16:25:26,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:26" (1/1) ... [2020-07-08 16:25:26,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:26" (1/1) ... [2020-07-08 16:25:26,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 16:25:26,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 16:25:26,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 16:25:26,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 16:25:26,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:26" (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 [2020-07-08 16:25:26,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 16:25:26,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 16:25:26,540 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 16:25:26,541 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-08 16:25:26,541 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-08 16:25:26,541 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-08 16:25:26,541 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-08 16:25:26,541 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-08 16:25:26,542 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-08 16:25:26,542 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-08 16:25:26,542 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-08 16:25:26,542 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-08 16:25:26,542 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-08 16:25:26,542 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-08 16:25:26,543 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-08 16:25:26,543 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-08 16:25:26,544 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-08 16:25:26,544 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-08 16:25:26,544 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-08 16:25:26,544 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-08 16:25:26,544 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-08 16:25:26,544 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-08 16:25:26,545 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-08 16:25:26,545 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-08 16:25:26,545 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-08 16:25:26,545 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-08 16:25:26,545 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-08 16:25:26,546 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-08 16:25:26,546 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-08 16:25:26,546 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-08 16:25:26,546 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-08 16:25:26,546 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-08 16:25:26,547 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-08 16:25:26,547 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-08 16:25:26,547 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-08 16:25:26,547 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-08 16:25:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-08 16:25:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-08 16:25:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-08 16:25:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-08 16:25:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-08 16:25:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-08 16:25:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-08 16:25:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-08 16:25:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-08 16:25:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-08 16:25:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-08 16:25:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-08 16:25:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-08 16:25:26,550 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-08 16:25:26,550 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-08 16:25:26,550 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-08 16:25:26,550 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-08 16:25:26,550 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-08 16:25:26,550 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-08 16:25:26,551 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-08 16:25:26,551 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-08 16:25:26,551 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-08 16:25:26,551 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-08 16:25:26,551 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-08 16:25:26,551 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-08 16:25:26,551 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-08 16:25:26,552 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-08 16:25:26,552 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-08 16:25:26,552 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-08 16:25:26,552 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-08 16:25:26,552 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-08 16:25:26,552 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-08 16:25:26,552 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-08 16:25:26,553 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-08 16:25:26,553 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-08 16:25:26,553 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-08 16:25:26,553 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-08 16:25:26,553 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-08 16:25:26,553 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-08 16:25:26,553 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-08 16:25:26,554 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-08 16:25:26,554 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-08 16:25:26,554 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-08 16:25:26,554 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-08 16:25:26,554 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-08 16:25:26,555 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-08 16:25:26,555 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-08 16:25:26,555 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-08 16:25:26,555 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-08 16:25:26,555 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-08 16:25:26,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-08 16:25:26,555 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-08 16:25:26,556 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-08 16:25:26,556 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-08 16:25:26,556 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-08 16:25:26,556 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-08 16:25:26,556 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-08 16:25:26,556 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-08 16:25:26,557 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-08 16:25:26,557 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-08 16:25:26,557 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-08 16:25:26,557 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-08 16:25:26,557 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-08 16:25:26,557 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-08 16:25:26,558 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-08 16:25:26,558 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-08 16:25:26,558 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-08 16:25:26,558 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-08 16:25:26,558 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-08 16:25:26,558 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-08 16:25:26,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-08 16:25:26,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 16:25:26,559 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 16:25:26,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-08 16:25:26,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-08 16:25:26,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-08 16:25:26,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-08 16:25:26,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-08 16:25:26,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 16:25:26,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 16:25:26,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 16:25:27,346 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 16:25:27,346 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-07-08 16:25:27,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:25:27 BoogieIcfgContainer [2020-07-08 16:25:27,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 16:25:27,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 16:25:27,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 16:25:27,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 16:25:27,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 04:25:25" (1/3) ... [2020-07-08 16:25:27,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731463f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:25:27, skipping insertion in model container [2020-07-08 16:25:27,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:26" (2/3) ... [2020-07-08 16:25:27,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731463f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:25:27, skipping insertion in model container [2020-07-08 16:25:27,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:25:27" (3/3) ... [2020-07-08 16:25:27,361 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-rb-cnstr_1-2.i [2020-07-08 16:25:27,373 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 16:25:27,382 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-07-08 16:25:27,398 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-07-08 16:25:27,421 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 16:25:27,421 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 16:25:27,422 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-08 16:25:27,422 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 16:25:27,422 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 16:25:27,422 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 16:25:27,422 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 16:25:27,423 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 16:25:27,438 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states. [2020-07-08 16:25:27,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-08 16:25:27,449 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:27,450 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:25:27,451 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:25:27,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:27,458 INFO L82 PathProgramCache]: Analyzing trace with hash -218973700, now seen corresponding path program 1 times [2020-07-08 16:25:27,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:27,484 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [822952066] [2020-07-08 16:25:27,484 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:27,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:27,733 INFO L280 TraceCheckUtils]: 0: Hoare triple {109#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {102#true} is VALID [2020-07-08 16:25:27,733 INFO L280 TraceCheckUtils]: 1: Hoare triple {102#true} #valid := #valid[0 := 0]; {102#true} is VALID [2020-07-08 16:25:27,734 INFO L280 TraceCheckUtils]: 2: Hoare triple {102#true} assume 0 < #StackHeapBarrier; {102#true} is VALID [2020-07-08 16:25:27,734 INFO L280 TraceCheckUtils]: 3: Hoare triple {102#true} assume true; {102#true} is VALID [2020-07-08 16:25:27,735 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {102#true} {102#true} #183#return; {102#true} is VALID [2020-07-08 16:25:27,739 INFO L263 TraceCheckUtils]: 0: Hoare triple {102#true} call ULTIMATE.init(); {109#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 16:25:27,739 INFO L280 TraceCheckUtils]: 1: Hoare triple {109#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {102#true} is VALID [2020-07-08 16:25:27,740 INFO L280 TraceCheckUtils]: 2: Hoare triple {102#true} #valid := #valid[0 := 0]; {102#true} is VALID [2020-07-08 16:25:27,740 INFO L280 TraceCheckUtils]: 3: Hoare triple {102#true} assume 0 < #StackHeapBarrier; {102#true} is VALID [2020-07-08 16:25:27,740 INFO L280 TraceCheckUtils]: 4: Hoare triple {102#true} assume true; {102#true} is VALID [2020-07-08 16:25:27,741 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {102#true} {102#true} #183#return; {102#true} is VALID [2020-07-08 16:25:27,741 INFO L263 TraceCheckUtils]: 6: Hoare triple {102#true} call #t~ret19 := main(); {102#true} is VALID [2020-07-08 16:25:27,741 INFO L280 TraceCheckUtils]: 7: Hoare triple {102#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {102#true} is VALID [2020-07-08 16:25:27,742 INFO L280 TraceCheckUtils]: 8: Hoare triple {102#true} ~list~0.base, ~list~0.offset := #t~malloc0.base, #t~malloc0.offset; {102#true} is VALID [2020-07-08 16:25:27,742 INFO L280 TraceCheckUtils]: 9: Hoare triple {102#true} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, ~list~0.offset, 4); srcloc: L995 {102#true} is VALID [2020-07-08 16:25:27,742 INFO L280 TraceCheckUtils]: 10: Hoare triple {102#true} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L995-1 {102#true} is VALID [2020-07-08 16:25:27,743 INFO L280 TraceCheckUtils]: 11: Hoare triple {102#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L996 {102#true} is VALID [2020-07-08 16:25:27,743 INFO L280 TraceCheckUtils]: 12: Hoare triple {102#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {102#true} is VALID [2020-07-08 16:25:27,744 INFO L280 TraceCheckUtils]: 13: Hoare triple {102#true} assume !true; {103#false} is VALID [2020-07-08 16:25:27,745 INFO L280 TraceCheckUtils]: 14: Hoare triple {103#false} ~end~0.base, ~end~0.offset := 0, 0; {103#false} is VALID [2020-07-08 16:25:27,745 INFO L280 TraceCheckUtils]: 15: Hoare triple {103#false} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {103#false} is VALID [2020-07-08 16:25:27,746 INFO L280 TraceCheckUtils]: 16: Hoare triple {103#false} assume !(0 != ~end~0.base || 0 != ~end~0.offset); {103#false} is VALID [2020-07-08 16:25:27,746 INFO L280 TraceCheckUtils]: 17: Hoare triple {103#false} assume !false; {103#false} is VALID [2020-07-08 16:25:27,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:25:27,749 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:27,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [822952066] [2020-07-08 16:25:27,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:25:27,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 16:25:27,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444019495] [2020-07-08 16:25:27,761 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-07-08 16:25:27,764 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:25:27,768 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 16:25:27,802 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:27,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 16:25:27,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:25:27,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 16:25:27,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 16:25:27,815 INFO L87 Difference]: Start difference. First operand 99 states. Second operand 3 states. [2020-07-08 16:25:28,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:28,424 INFO L93 Difference]: Finished difference Result 156 states and 187 transitions. [2020-07-08 16:25:28,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 16:25:28,424 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-07-08 16:25:28,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:25:28,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:25:28,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 187 transitions. [2020-07-08 16:25:28,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:25:28,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 187 transitions. [2020-07-08 16:25:28,452 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 187 transitions. [2020-07-08 16:25:28,721 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 187 edges. 187 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:28,737 INFO L225 Difference]: With dead ends: 156 [2020-07-08 16:25:28,738 INFO L226 Difference]: Without dead ends: 76 [2020-07-08 16:25:28,743 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 [2020-07-08 16:25:28,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-07-08 16:25:28,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-07-08 16:25:28,834 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:25:28,835 INFO L82 GeneralOperation]: Start isEquivalent. First operand 76 states. Second operand 76 states. [2020-07-08 16:25:28,836 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 76 states. [2020-07-08 16:25:28,836 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 76 states. [2020-07-08 16:25:28,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:28,844 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-07-08 16:25:28,845 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2020-07-08 16:25:28,846 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:28,846 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:28,846 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 76 states. [2020-07-08 16:25:28,847 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 76 states. [2020-07-08 16:25:28,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:28,855 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-07-08 16:25:28,855 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2020-07-08 16:25:28,856 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:28,857 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:28,857 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:25:28,857 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:25:28,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-07-08 16:25:28,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2020-07-08 16:25:28,888 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 18 [2020-07-08 16:25:28,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:25:28,888 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2020-07-08 16:25:28,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 16:25:28,889 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 76 states and 79 transitions. [2020-07-08 16:25:28,995 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 79 edges. 79 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:28,995 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2020-07-08 16:25:28,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-08 16:25:28,996 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:28,996 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:25:28,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 16:25:28,997 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:25:28,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:28,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1356448202, now seen corresponding path program 1 times [2020-07-08 16:25:28,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:28,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [566589017] [2020-07-08 16:25:28,998 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:29,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:29,219 INFO L280 TraceCheckUtils]: 0: Hoare triple {738#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {728#true} is VALID [2020-07-08 16:25:29,219 INFO L280 TraceCheckUtils]: 1: Hoare triple {728#true} #valid := #valid[0 := 0]; {728#true} is VALID [2020-07-08 16:25:29,220 INFO L280 TraceCheckUtils]: 2: Hoare triple {728#true} assume 0 < #StackHeapBarrier; {728#true} is VALID [2020-07-08 16:25:29,220 INFO L280 TraceCheckUtils]: 3: Hoare triple {728#true} assume true; {728#true} is VALID [2020-07-08 16:25:29,220 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {728#true} {728#true} #183#return; {728#true} is VALID [2020-07-08 16:25:29,222 INFO L263 TraceCheckUtils]: 0: Hoare triple {728#true} call ULTIMATE.init(); {738#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 16:25:29,223 INFO L280 TraceCheckUtils]: 1: Hoare triple {738#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {728#true} is VALID [2020-07-08 16:25:29,223 INFO L280 TraceCheckUtils]: 2: Hoare triple {728#true} #valid := #valid[0 := 0]; {728#true} is VALID [2020-07-08 16:25:29,223 INFO L280 TraceCheckUtils]: 3: Hoare triple {728#true} assume 0 < #StackHeapBarrier; {728#true} is VALID [2020-07-08 16:25:29,224 INFO L280 TraceCheckUtils]: 4: Hoare triple {728#true} assume true; {728#true} is VALID [2020-07-08 16:25:29,224 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {728#true} {728#true} #183#return; {728#true} is VALID [2020-07-08 16:25:29,224 INFO L263 TraceCheckUtils]: 6: Hoare triple {728#true} call #t~ret19 := main(); {728#true} is VALID [2020-07-08 16:25:29,225 INFO L280 TraceCheckUtils]: 7: Hoare triple {728#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {735#(not (= 0 |main_#t~malloc0.base|))} is VALID [2020-07-08 16:25:29,226 INFO L280 TraceCheckUtils]: 8: Hoare triple {735#(not (= 0 |main_#t~malloc0.base|))} ~list~0.base, ~list~0.offset := #t~malloc0.base, #t~malloc0.offset; {736#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:29,227 INFO L280 TraceCheckUtils]: 9: Hoare triple {736#(not (= 0 main_~list~0.base))} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, ~list~0.offset, 4); srcloc: L995 {736#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:29,229 INFO L280 TraceCheckUtils]: 10: Hoare triple {736#(not (= 0 main_~list~0.base))} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L995-1 {736#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:29,230 INFO L280 TraceCheckUtils]: 11: Hoare triple {736#(not (= 0 main_~list~0.base))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L996 {736#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:29,231 INFO L280 TraceCheckUtils]: 12: Hoare triple {736#(not (= 0 main_~list~0.base))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {736#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:29,231 INFO L280 TraceCheckUtils]: 13: Hoare triple {736#(not (= 0 main_~list~0.base))} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {736#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:29,232 INFO L280 TraceCheckUtils]: 14: Hoare triple {736#(not (= 0 main_~list~0.base))} assume !(0 != #t~nondet1); {736#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:29,233 INFO L280 TraceCheckUtils]: 15: Hoare triple {736#(not (= 0 main_~list~0.base))} havoc #t~nondet1; {736#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:29,234 INFO L280 TraceCheckUtils]: 16: Hoare triple {736#(not (= 0 main_~list~0.base))} ~end~0.base, ~end~0.offset := 0, 0; {736#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:29,235 INFO L280 TraceCheckUtils]: 17: Hoare triple {736#(not (= 0 main_~list~0.base))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {737#(not (= 0 main_~end~0.base))} is VALID [2020-07-08 16:25:29,236 INFO L280 TraceCheckUtils]: 18: Hoare triple {737#(not (= 0 main_~end~0.base))} assume !(0 != ~end~0.base || 0 != ~end~0.offset); {729#false} is VALID [2020-07-08 16:25:29,236 INFO L280 TraceCheckUtils]: 19: Hoare triple {729#false} assume !false; {729#false} is VALID [2020-07-08 16:25:29,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:25:29,240 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:29,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [566589017] [2020-07-08 16:25:29,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:25:29,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-08 16:25:29,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599647717] [2020-07-08 16:25:29,242 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-07-08 16:25:29,244 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:25:29,245 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-08 16:25:29,278 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:29,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-08 16:25:29,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:25:29,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-08 16:25:29,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-08 16:25:29,280 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand 6 states. [2020-07-08 16:25:30,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:30,039 INFO L93 Difference]: Finished difference Result 104 states and 109 transitions. [2020-07-08 16:25:30,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-08 16:25:30,040 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-07-08 16:25:30,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:25:30,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-08 16:25:30,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 109 transitions. [2020-07-08 16:25:30,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-08 16:25:30,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 109 transitions. [2020-07-08 16:25:30,047 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 109 transitions. [2020-07-08 16:25:30,185 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 109 edges. 109 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:30,191 INFO L225 Difference]: With dead ends: 104 [2020-07-08 16:25:30,191 INFO L226 Difference]: Without dead ends: 102 [2020-07-08 16:25:30,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-08 16:25:30,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-07-08 16:25:30,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 74. [2020-07-08 16:25:30,342 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:25:30,342 INFO L82 GeneralOperation]: Start isEquivalent. First operand 102 states. Second operand 74 states. [2020-07-08 16:25:30,342 INFO L74 IsIncluded]: Start isIncluded. First operand 102 states. Second operand 74 states. [2020-07-08 16:25:30,342 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 74 states. [2020-07-08 16:25:30,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:30,349 INFO L93 Difference]: Finished difference Result 102 states and 107 transitions. [2020-07-08 16:25:30,350 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 107 transitions. [2020-07-08 16:25:30,354 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:30,354 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:30,355 INFO L74 IsIncluded]: Start isIncluded. First operand 74 states. Second operand 102 states. [2020-07-08 16:25:30,355 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 102 states. [2020-07-08 16:25:30,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:30,360 INFO L93 Difference]: Finished difference Result 102 states and 107 transitions. [2020-07-08 16:25:30,360 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 107 transitions. [2020-07-08 16:25:30,361 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:30,361 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:30,362 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:25:30,362 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:25:30,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-07-08 16:25:30,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2020-07-08 16:25:30,366 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 20 [2020-07-08 16:25:30,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:25:30,366 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2020-07-08 16:25:30,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-08 16:25:30,366 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 74 states and 77 transitions. [2020-07-08 16:25:30,479 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 77 edges. 77 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:30,480 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2020-07-08 16:25:30,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-08 16:25:30,481 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:30,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:25:30,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 16:25:30,482 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:25:30,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:30,483 INFO L82 PathProgramCache]: Analyzing trace with hash 539652413, now seen corresponding path program 1 times [2020-07-08 16:25:30,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:30,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480218620] [2020-07-08 16:25:30,484 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:30,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:30,744 INFO L280 TraceCheckUtils]: 0: Hoare triple {1317#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {1305#true} is VALID [2020-07-08 16:25:30,744 INFO L280 TraceCheckUtils]: 1: Hoare triple {1305#true} #valid := #valid[0 := 0]; {1305#true} is VALID [2020-07-08 16:25:30,744 INFO L280 TraceCheckUtils]: 2: Hoare triple {1305#true} assume 0 < #StackHeapBarrier; {1305#true} is VALID [2020-07-08 16:25:30,745 INFO L280 TraceCheckUtils]: 3: Hoare triple {1305#true} assume true; {1305#true} is VALID [2020-07-08 16:25:30,745 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1305#true} {1305#true} #183#return; {1305#true} is VALID [2020-07-08 16:25:30,750 INFO L263 TraceCheckUtils]: 0: Hoare triple {1305#true} call ULTIMATE.init(); {1317#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 16:25:30,751 INFO L280 TraceCheckUtils]: 1: Hoare triple {1317#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {1305#true} is VALID [2020-07-08 16:25:30,751 INFO L280 TraceCheckUtils]: 2: Hoare triple {1305#true} #valid := #valid[0 := 0]; {1305#true} is VALID [2020-07-08 16:25:30,752 INFO L280 TraceCheckUtils]: 3: Hoare triple {1305#true} assume 0 < #StackHeapBarrier; {1305#true} is VALID [2020-07-08 16:25:30,752 INFO L280 TraceCheckUtils]: 4: Hoare triple {1305#true} assume true; {1305#true} is VALID [2020-07-08 16:25:30,752 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {1305#true} {1305#true} #183#return; {1305#true} is VALID [2020-07-08 16:25:30,753 INFO L263 TraceCheckUtils]: 6: Hoare triple {1305#true} call #t~ret19 := main(); {1305#true} is VALID [2020-07-08 16:25:30,754 INFO L280 TraceCheckUtils]: 7: Hoare triple {1305#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {1312#(= 0 |main_#t~malloc0.offset|)} is VALID [2020-07-08 16:25:30,757 INFO L280 TraceCheckUtils]: 8: Hoare triple {1312#(= 0 |main_#t~malloc0.offset|)} ~list~0.base, ~list~0.offset := #t~malloc0.base, #t~malloc0.offset; {1313#(= 0 main_~list~0.offset)} is VALID [2020-07-08 16:25:30,759 INFO L280 TraceCheckUtils]: 9: Hoare triple {1313#(= 0 main_~list~0.offset)} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, ~list~0.offset, 4); srcloc: L995 {1313#(= 0 main_~list~0.offset)} is VALID [2020-07-08 16:25:30,767 INFO L280 TraceCheckUtils]: 10: Hoare triple {1313#(= 0 main_~list~0.offset)} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L995-1 {1313#(= 0 main_~list~0.offset)} is VALID [2020-07-08 16:25:30,769 INFO L280 TraceCheckUtils]: 11: Hoare triple {1313#(= 0 main_~list~0.offset)} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L996 {1314#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:25:30,770 INFO L280 TraceCheckUtils]: 12: Hoare triple {1314#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {1314#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:25:30,771 INFO L280 TraceCheckUtils]: 13: Hoare triple {1314#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {1314#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:25:30,772 INFO L280 TraceCheckUtils]: 14: Hoare triple {1314#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} assume !(0 != #t~nondet1); {1314#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:25:30,774 INFO L280 TraceCheckUtils]: 15: Hoare triple {1314#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~nondet1; {1314#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:25:30,775 INFO L280 TraceCheckUtils]: 16: Hoare triple {1314#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := 0, 0; {1314#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:25:30,776 INFO L280 TraceCheckUtils]: 17: Hoare triple {1314#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {1315#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-08 16:25:30,776 INFO L280 TraceCheckUtils]: 18: Hoare triple {1315#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} assume !!(0 != ~end~0.base || 0 != ~end~0.offset); {1315#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-08 16:25:30,777 INFO L280 TraceCheckUtils]: 19: Hoare triple {1315#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} goto; {1315#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-08 16:25:30,778 INFO L280 TraceCheckUtils]: 20: Hoare triple {1315#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} SUMMARY for call #t~mem9 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1030-6 {1316#(= ~unnamed1~0~BLACK |main_#t~mem9|)} is VALID [2020-07-08 16:25:30,779 INFO L280 TraceCheckUtils]: 21: Hoare triple {1316#(= ~unnamed1~0~BLACK |main_#t~mem9|)} assume !(~unnamed1~0~BLACK == #t~mem9); {1306#false} is VALID [2020-07-08 16:25:30,779 INFO L280 TraceCheckUtils]: 22: Hoare triple {1306#false} havoc #t~mem9; {1306#false} is VALID [2020-07-08 16:25:30,780 INFO L280 TraceCheckUtils]: 23: Hoare triple {1306#false} assume !false; {1306#false} is VALID [2020-07-08 16:25:30,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:25:30,782 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:30,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480218620] [2020-07-08 16:25:30,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:25:30,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-08 16:25:30,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145988146] [2020-07-08 16:25:30,786 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2020-07-08 16:25:30,786 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:25:30,786 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-08 16:25:30,813 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:30,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-08 16:25:30,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:25:30,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-08 16:25:30,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-08 16:25:30,814 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand 8 states. [2020-07-08 16:25:32,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:32,103 INFO L93 Difference]: Finished difference Result 128 states and 134 transitions. [2020-07-08 16:25:32,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-08 16:25:32,104 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2020-07-08 16:25:32,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:25:32,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-08 16:25:32,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 134 transitions. [2020-07-08 16:25:32,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-08 16:25:32,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 134 transitions. [2020-07-08 16:25:32,111 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 134 transitions. [2020-07-08 16:25:32,298 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 134 edges. 134 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:32,303 INFO L225 Difference]: With dead ends: 128 [2020-07-08 16:25:32,303 INFO L226 Difference]: Without dead ends: 125 [2020-07-08 16:25:32,304 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-07-08 16:25:32,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-07-08 16:25:32,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 83. [2020-07-08 16:25:32,533 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:25:32,534 INFO L82 GeneralOperation]: Start isEquivalent. First operand 125 states. Second operand 83 states. [2020-07-08 16:25:32,534 INFO L74 IsIncluded]: Start isIncluded. First operand 125 states. Second operand 83 states. [2020-07-08 16:25:32,534 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 83 states. [2020-07-08 16:25:32,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:32,540 INFO L93 Difference]: Finished difference Result 125 states and 131 transitions. [2020-07-08 16:25:32,540 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 131 transitions. [2020-07-08 16:25:32,541 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:32,541 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:32,541 INFO L74 IsIncluded]: Start isIncluded. First operand 83 states. Second operand 125 states. [2020-07-08 16:25:32,542 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 125 states. [2020-07-08 16:25:32,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:32,547 INFO L93 Difference]: Finished difference Result 125 states and 131 transitions. [2020-07-08 16:25:32,548 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 131 transitions. [2020-07-08 16:25:32,548 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:32,549 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:32,549 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:25:32,549 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:25:32,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-07-08 16:25:32,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 87 transitions. [2020-07-08 16:25:32,553 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 87 transitions. Word has length 24 [2020-07-08 16:25:32,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:25:32,553 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 87 transitions. [2020-07-08 16:25:32,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-08 16:25:32,553 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 83 states and 87 transitions. [2020-07-08 16:25:32,700 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 87 edges. 87 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:32,701 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 87 transitions. [2020-07-08 16:25:32,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-08 16:25:32,702 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:32,703 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:25:32,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-08 16:25:32,703 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:25:32,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:32,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1498142901, now seen corresponding path program 1 times [2020-07-08 16:25:32,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:32,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1691514569] [2020-07-08 16:25:32,704 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 16:25:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 16:25:32,772 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:32,772 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-08 16:25:32,773 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-08 16:25:32,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-08 16:25:32,790 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-08 16:25:32,791 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 16:25:32,791 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 16:25:32,791 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-08 16:25:32,791 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 16:25:32,791 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 16:25:32,791 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 16:25:32,791 WARN L170 areAnnotationChecker]: L994 has no Hoare annotation [2020-07-08 16:25:32,792 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-08 16:25:32,792 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-08 16:25:32,792 WARN L170 areAnnotationChecker]: L995 has no Hoare annotation [2020-07-08 16:25:32,792 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-08 16:25:32,792 WARN L170 areAnnotationChecker]: L995-1 has no Hoare annotation [2020-07-08 16:25:32,792 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-08 16:25:32,792 WARN L170 areAnnotationChecker]: L996 has no Hoare annotation [2020-07-08 16:25:32,792 WARN L170 areAnnotationChecker]: L997 has no Hoare annotation [2020-07-08 16:25:32,792 WARN L170 areAnnotationChecker]: L1021 has no Hoare annotation [2020-07-08 16:25:32,793 WARN L170 areAnnotationChecker]: L1021 has no Hoare annotation [2020-07-08 16:25:32,793 WARN L170 areAnnotationChecker]: L1002-5 has no Hoare annotation [2020-07-08 16:25:32,793 WARN L170 areAnnotationChecker]: L1002-1 has no Hoare annotation [2020-07-08 16:25:32,793 WARN L170 areAnnotationChecker]: L1002-1 has no Hoare annotation [2020-07-08 16:25:32,793 WARN L170 areAnnotationChecker]: L1026 has no Hoare annotation [2020-07-08 16:25:32,793 WARN L170 areAnnotationChecker]: L1002-2 has no Hoare annotation [2020-07-08 16:25:32,793 WARN L170 areAnnotationChecker]: L1002-4 has no Hoare annotation [2020-07-08 16:25:32,793 WARN L170 areAnnotationChecker]: L1029-4 has no Hoare annotation [2020-07-08 16:25:32,793 WARN L170 areAnnotationChecker]: L1029-4 has no Hoare annotation [2020-07-08 16:25:32,794 WARN L170 areAnnotationChecker]: L1029-4 has no Hoare annotation [2020-07-08 16:25:32,794 WARN L170 areAnnotationChecker]: L1005 has no Hoare annotation [2020-07-08 16:25:32,794 WARN L170 areAnnotationChecker]: L1030-6 has no Hoare annotation [2020-07-08 16:25:32,794 WARN L170 areAnnotationChecker]: L1030-6 has no Hoare annotation [2020-07-08 16:25:32,794 WARN L170 areAnnotationChecker]: L1029-1 has no Hoare annotation [2020-07-08 16:25:32,794 WARN L170 areAnnotationChecker]: L1029-1 has no Hoare annotation [2020-07-08 16:25:32,794 WARN L170 areAnnotationChecker]: L1029-3 has no Hoare annotation [2020-07-08 16:25:32,794 WARN L170 areAnnotationChecker]: L1029-3 has no Hoare annotation [2020-07-08 16:25:32,795 WARN L170 areAnnotationChecker]: L1005-1 has no Hoare annotation [2020-07-08 16:25:32,795 WARN L170 areAnnotationChecker]: L1030 has no Hoare annotation [2020-07-08 16:25:32,795 WARN L170 areAnnotationChecker]: L1030 has no Hoare annotation [2020-07-08 16:25:32,795 WARN L170 areAnnotationChecker]: L1032-1 has no Hoare annotation [2020-07-08 16:25:32,795 WARN L170 areAnnotationChecker]: L1032-1 has no Hoare annotation [2020-07-08 16:25:32,795 WARN L170 areAnnotationChecker]: L1032-1 has no Hoare annotation [2020-07-08 16:25:32,795 WARN L170 areAnnotationChecker]: L1005-2 has no Hoare annotation [2020-07-08 16:25:32,795 WARN L170 areAnnotationChecker]: L1030-1 has no Hoare annotation [2020-07-08 16:25:32,795 WARN L170 areAnnotationChecker]: L1030-4 has no Hoare annotation [2020-07-08 16:25:32,796 WARN L170 areAnnotationChecker]: L1047-4 has no Hoare annotation [2020-07-08 16:25:32,796 WARN L170 areAnnotationChecker]: L1047-4 has no Hoare annotation [2020-07-08 16:25:32,796 WARN L170 areAnnotationChecker]: L1047-4 has no Hoare annotation [2020-07-08 16:25:32,796 WARN L170 areAnnotationChecker]: L1034 has no Hoare annotation [2020-07-08 16:25:32,796 WARN L170 areAnnotationChecker]: L1006 has no Hoare annotation [2020-07-08 16:25:32,796 WARN L170 areAnnotationChecker]: L1030-2 has no Hoare annotation [2020-07-08 16:25:32,796 WARN L170 areAnnotationChecker]: L1030-2 has no Hoare annotation [2020-07-08 16:25:32,796 WARN L170 areAnnotationChecker]: L1030-5 has no Hoare annotation [2020-07-08 16:25:32,797 WARN L170 areAnnotationChecker]: L1030-5 has no Hoare annotation [2020-07-08 16:25:32,797 WARN L170 areAnnotationChecker]: L1045-1 has no Hoare annotation [2020-07-08 16:25:32,797 WARN L170 areAnnotationChecker]: L1047 has no Hoare annotation [2020-07-08 16:25:32,797 WARN L170 areAnnotationChecker]: L1034-1 has no Hoare annotation [2020-07-08 16:25:32,797 WARN L170 areAnnotationChecker]: L1034-1 has no Hoare annotation [2020-07-08 16:25:32,797 WARN L170 areAnnotationChecker]: L1006-1 has no Hoare annotation [2020-07-08 16:25:32,797 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-08 16:25:32,797 WARN L170 areAnnotationChecker]: L1047-1 has no Hoare annotation [2020-07-08 16:25:32,798 WARN L170 areAnnotationChecker]: L1047-1 has no Hoare annotation [2020-07-08 16:25:32,798 WARN L170 areAnnotationChecker]: L1034-2 has no Hoare annotation [2020-07-08 16:25:32,798 WARN L170 areAnnotationChecker]: L1034-4 has no Hoare annotation [2020-07-08 16:25:32,798 WARN L170 areAnnotationChecker]: L1007 has no Hoare annotation [2020-07-08 16:25:32,798 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-08 16:25:32,798 WARN L170 areAnnotationChecker]: L1047-2 has no Hoare annotation [2020-07-08 16:25:32,798 WARN L170 areAnnotationChecker]: L1047-3 has no Hoare annotation [2020-07-08 16:25:32,798 WARN L170 areAnnotationChecker]: L1036 has no Hoare annotation [2020-07-08 16:25:32,799 WARN L170 areAnnotationChecker]: L1040-6 has no Hoare annotation [2020-07-08 16:25:32,799 WARN L170 areAnnotationChecker]: L1040-6 has no Hoare annotation [2020-07-08 16:25:32,799 WARN L170 areAnnotationChecker]: L1007-1 has no Hoare annotation [2020-07-08 16:25:32,799 WARN L170 areAnnotationChecker]: L1049 has no Hoare annotation [2020-07-08 16:25:32,799 WARN L170 areAnnotationChecker]: L1056 has no Hoare annotation [2020-07-08 16:25:32,799 WARN L170 areAnnotationChecker]: L1036-1 has no Hoare annotation [2020-07-08 16:25:32,799 WARN L170 areAnnotationChecker]: L1040 has no Hoare annotation [2020-07-08 16:25:32,799 WARN L170 areAnnotationChecker]: L1040 has no Hoare annotation [2020-07-08 16:25:32,799 WARN L170 areAnnotationChecker]: L1040-7 has no Hoare annotation [2020-07-08 16:25:32,799 WARN L170 areAnnotationChecker]: L1007-2 has no Hoare annotation [2020-07-08 16:25:32,799 WARN L170 areAnnotationChecker]: L1049-1 has no Hoare annotation [2020-07-08 16:25:32,799 WARN L170 areAnnotationChecker]: L1056-1 has no Hoare annotation [2020-07-08 16:25:32,800 WARN L170 areAnnotationChecker]: L1036-2 has no Hoare annotation [2020-07-08 16:25:32,800 WARN L170 areAnnotationChecker]: L1040-1 has no Hoare annotation [2020-07-08 16:25:32,800 WARN L170 areAnnotationChecker]: L1040-4 has no Hoare annotation [2020-07-08 16:25:32,800 WARN L170 areAnnotationChecker]: L1041 has no Hoare annotation [2020-07-08 16:25:32,800 WARN L170 areAnnotationChecker]: L1008 has no Hoare annotation [2020-07-08 16:25:32,800 WARN L170 areAnnotationChecker]: L1049-2 has no Hoare annotation [2020-07-08 16:25:32,800 WARN L170 areAnnotationChecker]: L1056-2 has no Hoare annotation [2020-07-08 16:25:32,800 WARN L170 areAnnotationChecker]: L1037 has no Hoare annotation [2020-07-08 16:25:32,800 WARN L170 areAnnotationChecker]: L1040-2 has no Hoare annotation [2020-07-08 16:25:32,800 WARN L170 areAnnotationChecker]: L1040-2 has no Hoare annotation [2020-07-08 16:25:32,800 WARN L170 areAnnotationChecker]: L1040-5 has no Hoare annotation [2020-07-08 16:25:32,801 WARN L170 areAnnotationChecker]: L1040-5 has no Hoare annotation [2020-07-08 16:25:32,801 WARN L170 areAnnotationChecker]: L1041-1 has no Hoare annotation [2020-07-08 16:25:32,801 WARN L170 areAnnotationChecker]: L1008-1 has no Hoare annotation [2020-07-08 16:25:32,801 WARN L170 areAnnotationChecker]: L1050 has no Hoare annotation [2020-07-08 16:25:32,801 WARN L170 areAnnotationChecker]: L1057 has no Hoare annotation [2020-07-08 16:25:32,801 WARN L170 areAnnotationChecker]: L1037-1 has no Hoare annotation [2020-07-08 16:25:32,801 WARN L170 areAnnotationChecker]: L1010 has no Hoare annotation [2020-07-08 16:25:32,801 WARN L170 areAnnotationChecker]: L1010 has no Hoare annotation [2020-07-08 16:25:32,802 WARN L170 areAnnotationChecker]: L1050-1 has no Hoare annotation [2020-07-08 16:25:32,802 WARN L170 areAnnotationChecker]: L1057-1 has no Hoare annotation [2020-07-08 16:25:32,802 WARN L170 areAnnotationChecker]: L1037-2 has no Hoare annotation [2020-07-08 16:25:32,802 WARN L170 areAnnotationChecker]: L1010-1 has no Hoare annotation [2020-07-08 16:25:32,802 WARN L170 areAnnotationChecker]: L1010-2 has no Hoare annotation [2020-07-08 16:25:32,802 WARN L170 areAnnotationChecker]: L1051 has no Hoare annotation [2020-07-08 16:25:32,802 WARN L170 areAnnotationChecker]: L1012 has no Hoare annotation [2020-07-08 16:25:32,802 WARN L170 areAnnotationChecker]: L1016 has no Hoare annotation [2020-07-08 16:25:32,803 WARN L170 areAnnotationChecker]: L1051-1 has no Hoare annotation [2020-07-08 16:25:32,803 WARN L170 areAnnotationChecker]: L1016-1 has no Hoare annotation [2020-07-08 16:25:32,803 WARN L170 areAnnotationChecker]: L1052 has no Hoare annotation [2020-07-08 16:25:32,803 WARN L170 areAnnotationChecker]: L1017 has no Hoare annotation [2020-07-08 16:25:32,803 WARN L170 areAnnotationChecker]: L1017-1 has no Hoare annotation [2020-07-08 16:25:32,803 WARN L170 areAnnotationChecker]: L1018 has no Hoare annotation [2020-07-08 16:25:32,803 WARN L170 areAnnotationChecker]: L1018-1 has no Hoare annotation [2020-07-08 16:25:32,803 WARN L170 areAnnotationChecker]: L1019 has no Hoare annotation [2020-07-08 16:25:32,803 WARN L170 areAnnotationChecker]: L1019-1 has no Hoare annotation [2020-07-08 16:25:32,803 WARN L170 areAnnotationChecker]: L1019-2 has no Hoare annotation [2020-07-08 16:25:32,803 WARN L170 areAnnotationChecker]: L1020 has no Hoare annotation [2020-07-08 16:25:32,803 WARN L170 areAnnotationChecker]: L1020-1 has no Hoare annotation [2020-07-08 16:25:32,803 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. [2020-07-08 16:25:32,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 04:25:32 BoogieIcfgContainer [2020-07-08 16:25:32,807 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 16:25:32,811 INFO L168 Benchmark]: Toolchain (without parser) took 7181.84 ms. Allocated memory was 140.5 MB in the beginning and 287.8 MB in the end (delta: 147.3 MB). Free memory was 100.2 MB in the beginning and 135.4 MB in the end (delta: -35.2 MB). Peak memory consumption was 112.1 MB. Max. memory is 7.1 GB. [2020-07-08 16:25:32,811 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 140.5 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-08 16:25:32,812 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.11 ms. Allocated memory was 140.5 MB in the beginning and 201.9 MB in the end (delta: 61.3 MB). Free memory was 100.0 MB in the beginning and 167.7 MB in the end (delta: -67.7 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-07-08 16:25:32,813 INFO L168 Benchmark]: Boogie Preprocessor took 93.20 ms. Allocated memory is still 201.9 MB. Free memory was 167.7 MB in the beginning and 163.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-08 16:25:32,814 INFO L168 Benchmark]: RCFGBuilder took 883.88 ms. Allocated memory is still 201.9 MB. Free memory was 163.7 MB in the beginning and 95.1 MB in the end (delta: 68.6 MB). Peak memory consumption was 68.6 MB. Max. memory is 7.1 GB. [2020-07-08 16:25:32,815 INFO L168 Benchmark]: TraceAbstraction took 5455.06 ms. Allocated memory was 201.9 MB in the beginning and 287.8 MB in the end (delta: 86.0 MB). Free memory was 94.4 MB in the beginning and 135.4 MB in the end (delta: -41.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. [2020-07-08 16:25:32,819 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 0.27 ms. Allocated memory is still 140.5 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 744.11 ms. Allocated memory was 140.5 MB in the beginning and 201.9 MB in the end (delta: 61.3 MB). Free memory was 100.0 MB in the beginning and 167.7 MB in the end (delta: -67.7 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.20 ms. Allocated memory is still 201.9 MB. Free memory was 167.7 MB in the beginning and 163.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 883.88 ms. Allocated memory is still 201.9 MB. Free memory was 163.7 MB in the beginning and 95.1 MB in the end (delta: 68.6 MB). Peak memory consumption was 68.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5455.06 ms. Allocated memory was 201.9 MB in the beginning and 287.8 MB in the end (delta: 86.0 MB). Free memory was 94.4 MB in the beginning and 135.4 MB in the end (delta: -41.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1040]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L994] SLL* list = malloc(sizeof(SLL)); [L995] list->next = ((void*)0) [L996] list->prev = ((void*)0) [L997] list->colour = BLACK [L999] SLL* end = list; [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1025] end = ((void*)0) [L1026] end = list [L1029] COND FALSE !(!(((void*)0) != end)) [L1030] EXPR end->colour [L1030] COND FALSE !(!(BLACK == end->colour)) [L1032] COND TRUE ((void*)0) != end [L1034] EXPR end->colour [L1034] COND FALSE !(RED == end->colour) [L1040] EXPR end->next [L1040] COND TRUE !(end->next) [L1040] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 99 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 221 SDtfs, 539 SDslu, 219 SDs, 0 SdLazy, 375 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred 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: 0.5s AutomataMinimizationTime, 3 MinimizatonAttempts, 70 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...