/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/heap-data/quick_sort_split.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 16:26:22,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 16:26:22,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 16:26:22,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 16:26:22,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 16:26:22,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 16:26:22,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 16:26:22,363 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 16:26:22,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 16:26:22,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 16:26:22,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 16:26:22,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 16:26:22,369 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 16:26:22,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 16:26:22,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 16:26:22,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 16:26:22,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 16:26:22,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 16:26:22,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 16:26:22,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 16:26:22,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 16:26:22,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 16:26:22,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 16:26:22,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 16:26:22,388 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-08 16:26:22,388 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-08 16:26:22,389 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-08 16:26:22,390 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-08 16:26:22,390 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-08 16:26:22,391 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-08 16:26:22,391 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 16:26:22,392 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 16:26:22,393 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 16:26:22,394 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 16:26:22,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 16:26:22,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 16:26:22,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 16:26:22,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 16:26:22,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 16:26:22,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 16:26:22,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 16:26:22,400 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 16:26:22,416 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 16:26:22,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 16:26:22,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 16:26:22,418 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 16:26:22,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 16:26:22,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 16:26:22,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 16:26:22,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 16:26:22,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 16:26:22,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 16:26:22,420 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 16:26:22,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 16:26:22,421 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 16:26:22,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 16:26:22,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 16:26:22,422 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 16:26:22,423 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 16:26:22,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 16:26:22,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 16:26:22,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 16:26:22,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 16:26:22,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 16:26:22,424 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-08 16:26:22,718 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 16:26:22,735 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 16:26:22,739 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 16:26:22,741 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 16:26:22,741 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 16:26:22,742 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/quick_sort_split.i [2020-07-08 16:26:22,828 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00872c591/ccc8cbb22086435b8165668d13363e9d/FLAG456c2c942 [2020-07-08 16:26:23,420 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 16:26:23,421 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/quick_sort_split.i [2020-07-08 16:26:23,438 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00872c591/ccc8cbb22086435b8165668d13363e9d/FLAG456c2c942 [2020-07-08 16:26:23,692 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00872c591/ccc8cbb22086435b8165668d13363e9d [2020-07-08 16:26:23,705 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 16:26:23,707 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 16:26:23,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 16:26:23,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 16:26:23,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 16:26:23,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:26:23" (1/1) ... [2020-07-08 16:26:23,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d6e4302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:26:23, skipping insertion in model container [2020-07-08 16:26:23,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:26:23" (1/1) ... [2020-07-08 16:26:23,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 16:26:23,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 16:26:24,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:26:24,215 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 16:26:24,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:26:24,328 INFO L208 MainTranslator]: Completed translation [2020-07-08 16:26:24,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:26:24 WrapperNode [2020-07-08 16:26:24,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 16:26:24,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 16:26:24,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 16:26:24,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 16:26:24,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:26:24" (1/1) ... [2020-07-08 16:26:24,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:26:24" (1/1) ... [2020-07-08 16:26:24,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:26:24" (1/1) ... [2020-07-08 16:26:24,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:26:24" (1/1) ... [2020-07-08 16:26:24,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:26:24" (1/1) ... [2020-07-08 16:26:24,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:26:24" (1/1) ... [2020-07-08 16:26:24,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:26:24" (1/1) ... [2020-07-08 16:26:24,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 16:26:24,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 16:26:24,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 16:26:24,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 16:26:24,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:26:24" (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 16:26:24,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 16:26:24,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 16:26:24,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-07-08 16:26:24,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-07-08 16:26:24,506 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_list [2020-07-08 16:26:24,506 INFO L138 BoogieDeclarations]: Found implementation of procedure create_list [2020-07-08 16:26:24,506 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 16:26:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-08 16:26:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 16:26:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-07-08 16:26:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-07-08 16:26:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-08 16:26:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-08 16:26:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-08 16:26:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-08 16:26:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-08 16:26:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-08 16:26:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-08 16:26:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-08 16:26:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-08 16:26:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-08 16:26:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-08 16:26:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-08 16:26:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-08 16:26:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-08 16:26:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-08 16:26:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-08 16:26:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-08 16:26:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-08 16:26:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-08 16:26:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-08 16:26:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-08 16:26:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-08 16:26:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-08 16:26:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-08 16:26:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-08 16:26:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-08 16:26:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-08 16:26:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-08 16:26:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-08 16:26:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-08 16:26:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-08 16:26:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-08 16:26:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-08 16:26:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-08 16:26:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-08 16:26:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-08 16:26:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-08 16:26:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-08 16:26:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-08 16:26:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-08 16:26:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-08 16:26:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-08 16:26:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-08 16:26:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-08 16:26:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-08 16:26:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-08 16:26:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-08 16:26:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-08 16:26:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-08 16:26:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-08 16:26:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-08 16:26:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-08 16:26:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-08 16:26:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-08 16:26:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-08 16:26:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-08 16:26:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-08 16:26:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-08 16:26:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-08 16:26:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-08 16:26:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-08 16:26:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-08 16:26:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-08 16:26:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-08 16:26:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-08 16:26:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-08 16:26:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-08 16:26:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-08 16:26:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-08 16:26:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-08 16:26:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-08 16:26:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-08 16:26:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-08 16:26:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-08 16:26:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-08 16:26:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-08 16:26:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-08 16:26:24,526 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-08 16:26:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-08 16:26:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-08 16:26:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-08 16:26:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-08 16:26:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-08 16:26:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-08 16:26:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-08 16:26:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-08 16:26:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-08 16:26:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-08 16:26:24,529 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-08 16:26:24,529 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-08 16:26:24,530 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-08 16:26:24,530 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-08 16:26:24,530 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-08 16:26:24,530 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-08 16:26:24,530 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-08 16:26:24,530 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-08 16:26:24,531 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-08 16:26:24,531 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-08 16:26:24,531 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-08 16:26:24,531 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-08 16:26:24,531 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-08 16:26:24,531 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-08 16:26:24,531 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-08 16:26:24,532 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_list [2020-07-08 16:26:24,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-08 16:26:24,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-08 16:26:24,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-08 16:26:24,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-08 16:26:24,532 INFO L130 BoogieDeclarations]: Found specification of procedure create_list [2020-07-08 16:26:24,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-08 16:26:24,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-08 16:26:24,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 16:26:24,533 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 16:26:24,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-08 16:26:24,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 16:26:24,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 16:26:25,356 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 16:26:25,356 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-08 16:26:25,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:26:25 BoogieIcfgContainer [2020-07-08 16:26:25,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 16:26:25,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 16:26:25,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 16:26:25,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 16:26:25,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 04:26:23" (1/3) ... [2020-07-08 16:26:25,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e1599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:26:25, skipping insertion in model container [2020-07-08 16:26:25,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:26:24" (2/3) ... [2020-07-08 16:26:25,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e1599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:26:25, skipping insertion in model container [2020-07-08 16:26:25,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:26:25" (3/3) ... [2020-07-08 16:26:25,372 INFO L109 eAbstractionObserver]: Analyzing ICFG quick_sort_split.i [2020-07-08 16:26:25,384 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 16:26:25,393 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-07-08 16:26:25,409 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-07-08 16:26:25,435 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 16:26:25,436 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 16:26:25,436 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-08 16:26:25,436 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 16:26:25,438 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 16:26:25,438 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 16:26:25,438 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 16:26:25,439 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 16:26:25,457 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2020-07-08 16:26:25,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-08 16:26:25,471 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:26:25,472 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] [2020-07-08 16:26:25,473 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:26:25,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:26:25,480 INFO L82 PathProgramCache]: Analyzing trace with hash 958208796, now seen corresponding path program 1 times [2020-07-08 16:26:25,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:26:25,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [647755999] [2020-07-08 16:26:25,492 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:26:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:25,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:25,765 INFO L280 TraceCheckUtils]: 0: Hoare triple {103#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {86#true} is VALID [2020-07-08 16:26:25,765 INFO L280 TraceCheckUtils]: 1: Hoare triple {86#true} #valid := #valid[0 := 0]; {86#true} is VALID [2020-07-08 16:26:25,766 INFO L280 TraceCheckUtils]: 2: Hoare triple {86#true} assume 0 < #StackHeapBarrier; {86#true} is VALID [2020-07-08 16:26:25,766 INFO L280 TraceCheckUtils]: 3: Hoare triple {86#true} assume true; {86#true} is VALID [2020-07-08 16:26:25,767 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {86#true} {86#true} #155#return; {86#true} is VALID [2020-07-08 16:26:25,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:25,812 INFO L280 TraceCheckUtils]: 0: Hoare triple {104#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} SUMMARY for call ~#list~0.base, ~#list~0.offset := #Ultimate.allocOnStack(4); srcloc: create_listENTRY {86#true} is VALID [2020-07-08 16:26:25,812 INFO L280 TraceCheckUtils]: 1: Hoare triple {86#true} SUMMARY for call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4); srcloc: L570 {86#true} is VALID [2020-07-08 16:26:25,814 INFO L280 TraceCheckUtils]: 2: Hoare triple {86#true} assume !true; {87#false} is VALID [2020-07-08 16:26:25,814 INFO L280 TraceCheckUtils]: 3: Hoare triple {87#false} SUMMARY for call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~#list~0.base, ~#list~0.offset, 4); srcloc: L571-4 {87#false} is VALID [2020-07-08 16:26:25,815 INFO L280 TraceCheckUtils]: 4: Hoare triple {87#false} #res.base, #res.offset := #t~mem6.base, #t~mem6.offset; {87#false} is VALID [2020-07-08 16:26:25,815 INFO L280 TraceCheckUtils]: 5: Hoare triple {87#false} havoc #t~mem6.base, #t~mem6.offset; {87#false} is VALID [2020-07-08 16:26:25,815 INFO L280 TraceCheckUtils]: 6: Hoare triple {87#false} SUMMARY for call ULTIMATE.dealloc(~#list~0.base, ~#list~0.offset); srcloc: L570-2 {87#false} is VALID [2020-07-08 16:26:25,816 INFO L280 TraceCheckUtils]: 7: Hoare triple {87#false} havoc ~#list~0.base, ~#list~0.offset; {87#false} is VALID [2020-07-08 16:26:25,816 INFO L280 TraceCheckUtils]: 8: Hoare triple {87#false} assume true; {87#false} is VALID [2020-07-08 16:26:25,817 INFO L275 TraceCheckUtils]: 9: Hoare quadruple {87#false} {86#true} #149#return; {87#false} is VALID [2020-07-08 16:26:25,819 INFO L263 TraceCheckUtils]: 0: Hoare triple {86#true} call ULTIMATE.init(); {103#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 16:26:25,819 INFO L280 TraceCheckUtils]: 1: Hoare triple {103#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {86#true} is VALID [2020-07-08 16:26:25,820 INFO L280 TraceCheckUtils]: 2: Hoare triple {86#true} #valid := #valid[0 := 0]; {86#true} is VALID [2020-07-08 16:26:25,820 INFO L280 TraceCheckUtils]: 3: Hoare triple {86#true} assume 0 < #StackHeapBarrier; {86#true} is VALID [2020-07-08 16:26:25,821 INFO L280 TraceCheckUtils]: 4: Hoare triple {86#true} assume true; {86#true} is VALID [2020-07-08 16:26:25,821 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {86#true} {86#true} #155#return; {86#true} is VALID [2020-07-08 16:26:25,821 INFO L263 TraceCheckUtils]: 6: Hoare triple {86#true} call #t~ret15 := main(); {86#true} is VALID [2020-07-08 16:26:25,823 INFO L263 TraceCheckUtils]: 7: Hoare triple {86#true} call #t~ret7.base, #t~ret7.offset := create_list(); {104#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-08 16:26:25,824 INFO L280 TraceCheckUtils]: 8: Hoare triple {104#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} SUMMARY for call ~#list~0.base, ~#list~0.offset := #Ultimate.allocOnStack(4); srcloc: create_listENTRY {86#true} is VALID [2020-07-08 16:26:25,824 INFO L280 TraceCheckUtils]: 9: Hoare triple {86#true} SUMMARY for call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4); srcloc: L570 {86#true} is VALID [2020-07-08 16:26:25,825 INFO L280 TraceCheckUtils]: 10: Hoare triple {86#true} assume !true; {87#false} is VALID [2020-07-08 16:26:25,826 INFO L280 TraceCheckUtils]: 11: Hoare triple {87#false} SUMMARY for call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~#list~0.base, ~#list~0.offset, 4); srcloc: L571-4 {87#false} is VALID [2020-07-08 16:26:25,826 INFO L280 TraceCheckUtils]: 12: Hoare triple {87#false} #res.base, #res.offset := #t~mem6.base, #t~mem6.offset; {87#false} is VALID [2020-07-08 16:26:25,826 INFO L280 TraceCheckUtils]: 13: Hoare triple {87#false} havoc #t~mem6.base, #t~mem6.offset; {87#false} is VALID [2020-07-08 16:26:25,827 INFO L280 TraceCheckUtils]: 14: Hoare triple {87#false} SUMMARY for call ULTIMATE.dealloc(~#list~0.base, ~#list~0.offset); srcloc: L570-2 {87#false} is VALID [2020-07-08 16:26:25,827 INFO L280 TraceCheckUtils]: 15: Hoare triple {87#false} havoc ~#list~0.base, ~#list~0.offset; {87#false} is VALID [2020-07-08 16:26:25,827 INFO L280 TraceCheckUtils]: 16: Hoare triple {87#false} assume true; {87#false} is VALID [2020-07-08 16:26:25,828 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {87#false} {86#true} #149#return; {87#false} is VALID [2020-07-08 16:26:25,828 INFO L280 TraceCheckUtils]: 18: Hoare triple {87#false} ~list~1.base, ~list~1.offset := #t~ret7.base, #t~ret7.offset; {87#false} is VALID [2020-07-08 16:26:25,828 INFO L280 TraceCheckUtils]: 19: Hoare triple {87#false} havoc #t~ret7.base, #t~ret7.offset; {87#false} is VALID [2020-07-08 16:26:25,829 INFO L280 TraceCheckUtils]: 20: Hoare triple {87#false} ~low~0.base, ~low~0.offset := 0, 0; {87#false} is VALID [2020-07-08 16:26:25,829 INFO L280 TraceCheckUtils]: 21: Hoare triple {87#false} ~high~0.base, ~high~0.offset := 0, 0; {87#false} is VALID [2020-07-08 16:26:25,829 INFO L280 TraceCheckUtils]: 22: Hoare triple {87#false} ~p~0.base, ~p~0.offset := ~list~1.base, ~list~1.offset; {87#false} is VALID [2020-07-08 16:26:25,830 INFO L280 TraceCheckUtils]: 23: Hoare triple {87#false} assume !(~p~0.base != 0 || ~p~0.offset != 0); {87#false} is VALID [2020-07-08 16:26:25,830 INFO L280 TraceCheckUtils]: 24: Hoare triple {87#false} assume !!(~low~0.base != 0 || ~low~0.offset != 0); {87#false} is VALID [2020-07-08 16:26:25,830 INFO L280 TraceCheckUtils]: 25: Hoare triple {87#false} SUMMARY for call #t~mem11 := read~int(~low~0.base, ~low~0.offset, 4); srcloc: L593 {87#false} is VALID [2020-07-08 16:26:25,831 INFO L280 TraceCheckUtils]: 26: Hoare triple {87#false} assume !(-1 == #t~mem11); {87#false} is VALID [2020-07-08 16:26:25,831 INFO L280 TraceCheckUtils]: 27: Hoare triple {87#false} havoc #t~mem11; {87#false} is VALID [2020-07-08 16:26:25,831 INFO L280 TraceCheckUtils]: 28: Hoare triple {87#false} assume !false; {87#false} is VALID [2020-07-08 16:26:25,837 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 16:26:25,837 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:26:25,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [647755999] [2020-07-08 16:26:25,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:26:25,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-08 16:26:25,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116452596] [2020-07-08 16:26:25,849 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-07-08 16:26:25,853 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:26:25,857 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-08 16:26:25,914 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:25,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-08 16:26:25,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:26:25,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-08 16:26:25,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-08 16:26:25,928 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 4 states. [2020-07-08 16:26:26,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:26,580 INFO L93 Difference]: Finished difference Result 133 states and 153 transitions. [2020-07-08 16:26:26,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-08 16:26:26,580 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-07-08 16:26:26,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:26:26,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 16:26:26,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 153 transitions. [2020-07-08 16:26:26,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 16:26:26,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 153 transitions. [2020-07-08 16:26:26,605 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 153 transitions. [2020-07-08 16:26:26,848 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 153 edges. 153 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:26,866 INFO L225 Difference]: With dead ends: 133 [2020-07-08 16:26:26,866 INFO L226 Difference]: Without dead ends: 79 [2020-07-08 16:26:26,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-08 16:26:26,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-07-08 16:26:26,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-07-08 16:26:26,969 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:26:26,970 INFO L82 GeneralOperation]: Start isEquivalent. First operand 79 states. Second operand 79 states. [2020-07-08 16:26:26,971 INFO L74 IsIncluded]: Start isIncluded. First operand 79 states. Second operand 79 states. [2020-07-08 16:26:26,971 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 79 states. [2020-07-08 16:26:26,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:26,980 INFO L93 Difference]: Finished difference Result 79 states and 85 transitions. [2020-07-08 16:26:26,981 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 85 transitions. [2020-07-08 16:26:26,982 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:26,982 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:26,982 INFO L74 IsIncluded]: Start isIncluded. First operand 79 states. Second operand 79 states. [2020-07-08 16:26:26,983 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 79 states. [2020-07-08 16:26:26,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:26,991 INFO L93 Difference]: Finished difference Result 79 states and 85 transitions. [2020-07-08 16:26:26,991 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 85 transitions. [2020-07-08 16:26:26,992 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:26,993 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:26,993 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:26:26,993 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:26:26,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-07-08 16:26:26,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 85 transitions. [2020-07-08 16:26:27,001 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 85 transitions. Word has length 29 [2020-07-08 16:26:27,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:26:27,002 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 85 transitions. [2020-07-08 16:26:27,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-08 16:26:27,002 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 79 states and 85 transitions. [2020-07-08 16:26:27,103 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 85 edges. 85 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:27,103 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 85 transitions. [2020-07-08 16:26:27,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-08 16:26:27,105 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:26:27,105 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] [2020-07-08 16:26:27,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 16:26:27,106 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:26:27,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:26:27,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1823620041, now seen corresponding path program 1 times [2020-07-08 16:26:27,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:26:27,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [579761590] [2020-07-08 16:26:27,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:26:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:27,203 INFO L280 TraceCheckUtils]: 0: Hoare triple {712#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {692#true} is VALID [2020-07-08 16:26:27,203 INFO L280 TraceCheckUtils]: 1: Hoare triple {692#true} #valid := #valid[0 := 0]; {692#true} is VALID [2020-07-08 16:26:27,204 INFO L280 TraceCheckUtils]: 2: Hoare triple {692#true} assume 0 < #StackHeapBarrier; {692#true} is VALID [2020-07-08 16:26:27,204 INFO L280 TraceCheckUtils]: 3: Hoare triple {692#true} assume true; {692#true} is VALID [2020-07-08 16:26:27,205 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {692#true} {692#true} #155#return; {692#true} is VALID [2020-07-08 16:26:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:27,236 INFO L280 TraceCheckUtils]: 0: Hoare triple {713#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} SUMMARY for call ~#list~0.base, ~#list~0.offset := #Ultimate.allocOnStack(4); srcloc: create_listENTRY {692#true} is VALID [2020-07-08 16:26:27,236 INFO L280 TraceCheckUtils]: 1: Hoare triple {692#true} SUMMARY for call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4); srcloc: L570 {692#true} is VALID [2020-07-08 16:26:27,237 INFO L280 TraceCheckUtils]: 2: Hoare triple {692#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {692#true} is VALID [2020-07-08 16:26:27,237 INFO L280 TraceCheckUtils]: 3: Hoare triple {692#true} assume !(0 != #t~nondet4); {692#true} is VALID [2020-07-08 16:26:27,237 INFO L280 TraceCheckUtils]: 4: Hoare triple {692#true} havoc #t~nondet4; {692#true} is VALID [2020-07-08 16:26:27,238 INFO L280 TraceCheckUtils]: 5: Hoare triple {692#true} SUMMARY for call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~#list~0.base, ~#list~0.offset, 4); srcloc: L571-4 {692#true} is VALID [2020-07-08 16:26:27,238 INFO L280 TraceCheckUtils]: 6: Hoare triple {692#true} #res.base, #res.offset := #t~mem6.base, #t~mem6.offset; {692#true} is VALID [2020-07-08 16:26:27,238 INFO L280 TraceCheckUtils]: 7: Hoare triple {692#true} havoc #t~mem6.base, #t~mem6.offset; {692#true} is VALID [2020-07-08 16:26:27,238 INFO L280 TraceCheckUtils]: 8: Hoare triple {692#true} SUMMARY for call ULTIMATE.dealloc(~#list~0.base, ~#list~0.offset); srcloc: L570-2 {692#true} is VALID [2020-07-08 16:26:27,239 INFO L280 TraceCheckUtils]: 9: Hoare triple {692#true} havoc ~#list~0.base, ~#list~0.offset; {692#true} is VALID [2020-07-08 16:26:27,239 INFO L280 TraceCheckUtils]: 10: Hoare triple {692#true} assume true; {692#true} is VALID [2020-07-08 16:26:27,239 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {692#true} {692#true} #149#return; {692#true} is VALID [2020-07-08 16:26:27,241 INFO L263 TraceCheckUtils]: 0: Hoare triple {692#true} call ULTIMATE.init(); {712#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 16:26:27,241 INFO L280 TraceCheckUtils]: 1: Hoare triple {712#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {692#true} is VALID [2020-07-08 16:26:27,242 INFO L280 TraceCheckUtils]: 2: Hoare triple {692#true} #valid := #valid[0 := 0]; {692#true} is VALID [2020-07-08 16:26:27,242 INFO L280 TraceCheckUtils]: 3: Hoare triple {692#true} assume 0 < #StackHeapBarrier; {692#true} is VALID [2020-07-08 16:26:27,242 INFO L280 TraceCheckUtils]: 4: Hoare triple {692#true} assume true; {692#true} is VALID [2020-07-08 16:26:27,242 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {692#true} {692#true} #155#return; {692#true} is VALID [2020-07-08 16:26:27,243 INFO L263 TraceCheckUtils]: 6: Hoare triple {692#true} call #t~ret15 := main(); {692#true} is VALID [2020-07-08 16:26:27,244 INFO L263 TraceCheckUtils]: 7: Hoare triple {692#true} call #t~ret7.base, #t~ret7.offset := create_list(); {713#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-08 16:26:27,245 INFO L280 TraceCheckUtils]: 8: Hoare triple {713#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} SUMMARY for call ~#list~0.base, ~#list~0.offset := #Ultimate.allocOnStack(4); srcloc: create_listENTRY {692#true} is VALID [2020-07-08 16:26:27,245 INFO L280 TraceCheckUtils]: 9: Hoare triple {692#true} SUMMARY for call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4); srcloc: L570 {692#true} is VALID [2020-07-08 16:26:27,245 INFO L280 TraceCheckUtils]: 10: Hoare triple {692#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {692#true} is VALID [2020-07-08 16:26:27,245 INFO L280 TraceCheckUtils]: 11: Hoare triple {692#true} assume !(0 != #t~nondet4); {692#true} is VALID [2020-07-08 16:26:27,246 INFO L280 TraceCheckUtils]: 12: Hoare triple {692#true} havoc #t~nondet4; {692#true} is VALID [2020-07-08 16:26:27,246 INFO L280 TraceCheckUtils]: 13: Hoare triple {692#true} SUMMARY for call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~#list~0.base, ~#list~0.offset, 4); srcloc: L571-4 {692#true} is VALID [2020-07-08 16:26:27,246 INFO L280 TraceCheckUtils]: 14: Hoare triple {692#true} #res.base, #res.offset := #t~mem6.base, #t~mem6.offset; {692#true} is VALID [2020-07-08 16:26:27,247 INFO L280 TraceCheckUtils]: 15: Hoare triple {692#true} havoc #t~mem6.base, #t~mem6.offset; {692#true} is VALID [2020-07-08 16:26:27,247 INFO L280 TraceCheckUtils]: 16: Hoare triple {692#true} SUMMARY for call ULTIMATE.dealloc(~#list~0.base, ~#list~0.offset); srcloc: L570-2 {692#true} is VALID [2020-07-08 16:26:27,247 INFO L280 TraceCheckUtils]: 17: Hoare triple {692#true} havoc ~#list~0.base, ~#list~0.offset; {692#true} is VALID [2020-07-08 16:26:27,247 INFO L280 TraceCheckUtils]: 18: Hoare triple {692#true} assume true; {692#true} is VALID [2020-07-08 16:26:27,248 INFO L275 TraceCheckUtils]: 19: Hoare quadruple {692#true} {692#true} #149#return; {692#true} is VALID [2020-07-08 16:26:27,248 INFO L280 TraceCheckUtils]: 20: Hoare triple {692#true} ~list~1.base, ~list~1.offset := #t~ret7.base, #t~ret7.offset; {692#true} is VALID [2020-07-08 16:26:27,248 INFO L280 TraceCheckUtils]: 21: Hoare triple {692#true} havoc #t~ret7.base, #t~ret7.offset; {692#true} is VALID [2020-07-08 16:26:27,249 INFO L280 TraceCheckUtils]: 22: Hoare triple {692#true} ~low~0.base, ~low~0.offset := 0, 0; {711#(and (= 0 main_~low~0.offset) (= 0 main_~low~0.base))} is VALID [2020-07-08 16:26:27,250 INFO L280 TraceCheckUtils]: 23: Hoare triple {711#(and (= 0 main_~low~0.offset) (= 0 main_~low~0.base))} ~high~0.base, ~high~0.offset := 0, 0; {711#(and (= 0 main_~low~0.offset) (= 0 main_~low~0.base))} is VALID [2020-07-08 16:26:27,251 INFO L280 TraceCheckUtils]: 24: Hoare triple {711#(and (= 0 main_~low~0.offset) (= 0 main_~low~0.base))} ~p~0.base, ~p~0.offset := ~list~1.base, ~list~1.offset; {711#(and (= 0 main_~low~0.offset) (= 0 main_~low~0.base))} is VALID [2020-07-08 16:26:27,252 INFO L280 TraceCheckUtils]: 25: Hoare triple {711#(and (= 0 main_~low~0.offset) (= 0 main_~low~0.base))} assume !(~p~0.base != 0 || ~p~0.offset != 0); {711#(and (= 0 main_~low~0.offset) (= 0 main_~low~0.base))} is VALID [2020-07-08 16:26:27,253 INFO L280 TraceCheckUtils]: 26: Hoare triple {711#(and (= 0 main_~low~0.offset) (= 0 main_~low~0.base))} assume !!(~low~0.base != 0 || ~low~0.offset != 0); {693#false} is VALID [2020-07-08 16:26:27,254 INFO L280 TraceCheckUtils]: 27: Hoare triple {693#false} SUMMARY for call #t~mem11 := read~int(~low~0.base, ~low~0.offset, 4); srcloc: L593 {693#false} is VALID [2020-07-08 16:26:27,254 INFO L280 TraceCheckUtils]: 28: Hoare triple {693#false} assume !(-1 == #t~mem11); {693#false} is VALID [2020-07-08 16:26:27,254 INFO L280 TraceCheckUtils]: 29: Hoare triple {693#false} havoc #t~mem11; {693#false} is VALID [2020-07-08 16:26:27,255 INFO L280 TraceCheckUtils]: 30: Hoare triple {693#false} assume !false; {693#false} is VALID [2020-07-08 16:26:27,256 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 16:26:27,256 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:26:27,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [579761590] [2020-07-08 16:26:27,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:26:27,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 16:26:27,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621475382] [2020-07-08 16:26:27,259 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-07-08 16:26:27,259 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:26:27,259 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 16:26:27,301 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:27,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 16:26:27,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:26:27,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 16:26:27,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 16:26:27,302 INFO L87 Difference]: Start difference. First operand 79 states and 85 transitions. Second operand 5 states. [2020-07-08 16:26:27,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:27,932 INFO L93 Difference]: Finished difference Result 90 states and 97 transitions. [2020-07-08 16:26:27,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-08 16:26:27,932 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-07-08 16:26:27,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:26:27,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 16:26:27,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 97 transitions. [2020-07-08 16:26:27,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 16:26:27,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 97 transitions. [2020-07-08 16:26:27,949 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 97 transitions. [2020-07-08 16:26:28,076 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 97 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:28,080 INFO L225 Difference]: With dead ends: 90 [2020-07-08 16:26:28,080 INFO L226 Difference]: Without dead ends: 70 [2020-07-08 16:26:28,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-08 16:26:28,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-07-08 16:26:28,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-07-08 16:26:28,156 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:26:28,156 INFO L82 GeneralOperation]: Start isEquivalent. First operand 70 states. Second operand 70 states. [2020-07-08 16:26:28,157 INFO L74 IsIncluded]: Start isIncluded. First operand 70 states. Second operand 70 states. [2020-07-08 16:26:28,157 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 70 states. [2020-07-08 16:26:28,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:28,161 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2020-07-08 16:26:28,161 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 75 transitions. [2020-07-08 16:26:28,162 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:28,162 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:28,163 INFO L74 IsIncluded]: Start isIncluded. First operand 70 states. Second operand 70 states. [2020-07-08 16:26:28,163 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 70 states. [2020-07-08 16:26:28,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:28,167 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2020-07-08 16:26:28,168 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 75 transitions. [2020-07-08 16:26:28,169 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:28,169 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:28,169 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:26:28,169 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:26:28,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-07-08 16:26:28,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 75 transitions. [2020-07-08 16:26:28,173 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 75 transitions. Word has length 31 [2020-07-08 16:26:28,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:26:28,174 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 75 transitions. [2020-07-08 16:26:28,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 16:26:28,174 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 70 states and 75 transitions. [2020-07-08 16:26:28,266 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 75 edges. 75 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:28,267 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 75 transitions. [2020-07-08 16:26:28,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-08 16:26:28,269 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:26:28,269 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 16:26:28,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 16:26:28,270 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:26:28,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:26:28,270 INFO L82 PathProgramCache]: Analyzing trace with hash 663231917, now seen corresponding path program 1 times [2020-07-08 16:26:28,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:26:28,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [741456361] [2020-07-08 16:26:28,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:26:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:28,361 INFO L280 TraceCheckUtils]: 0: Hoare triple {1199#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {1179#true} is VALID [2020-07-08 16:26:28,361 INFO L280 TraceCheckUtils]: 1: Hoare triple {1179#true} #valid := #valid[0 := 0]; {1179#true} is VALID [2020-07-08 16:26:28,362 INFO L280 TraceCheckUtils]: 2: Hoare triple {1179#true} assume 0 < #StackHeapBarrier; {1179#true} is VALID [2020-07-08 16:26:28,362 INFO L280 TraceCheckUtils]: 3: Hoare triple {1179#true} assume true; {1179#true} is VALID [2020-07-08 16:26:28,362 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1179#true} {1179#true} #155#return; {1179#true} is VALID [2020-07-08 16:26:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:28,406 INFO L280 TraceCheckUtils]: 0: Hoare triple {1200#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} SUMMARY for call ~#list~0.base, ~#list~0.offset := #Ultimate.allocOnStack(4); srcloc: create_listENTRY {1179#true} is VALID [2020-07-08 16:26:28,406 INFO L280 TraceCheckUtils]: 1: Hoare triple {1179#true} SUMMARY for call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4); srcloc: L570 {1179#true} is VALID [2020-07-08 16:26:28,406 INFO L280 TraceCheckUtils]: 2: Hoare triple {1179#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {1179#true} is VALID [2020-07-08 16:26:28,407 INFO L280 TraceCheckUtils]: 3: Hoare triple {1179#true} assume !(0 != #t~nondet4); {1179#true} is VALID [2020-07-08 16:26:28,407 INFO L280 TraceCheckUtils]: 4: Hoare triple {1179#true} havoc #t~nondet4; {1179#true} is VALID [2020-07-08 16:26:28,407 INFO L280 TraceCheckUtils]: 5: Hoare triple {1179#true} SUMMARY for call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~#list~0.base, ~#list~0.offset, 4); srcloc: L571-4 {1179#true} is VALID [2020-07-08 16:26:28,408 INFO L280 TraceCheckUtils]: 6: Hoare triple {1179#true} #res.base, #res.offset := #t~mem6.base, #t~mem6.offset; {1179#true} is VALID [2020-07-08 16:26:28,408 INFO L280 TraceCheckUtils]: 7: Hoare triple {1179#true} havoc #t~mem6.base, #t~mem6.offset; {1179#true} is VALID [2020-07-08 16:26:28,408 INFO L280 TraceCheckUtils]: 8: Hoare triple {1179#true} SUMMARY for call ULTIMATE.dealloc(~#list~0.base, ~#list~0.offset); srcloc: L570-2 {1179#true} is VALID [2020-07-08 16:26:28,409 INFO L280 TraceCheckUtils]: 9: Hoare triple {1179#true} havoc ~#list~0.base, ~#list~0.offset; {1179#true} is VALID [2020-07-08 16:26:28,409 INFO L280 TraceCheckUtils]: 10: Hoare triple {1179#true} assume true; {1179#true} is VALID [2020-07-08 16:26:28,409 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {1179#true} {1179#true} #149#return; {1179#true} is VALID [2020-07-08 16:26:28,411 INFO L263 TraceCheckUtils]: 0: Hoare triple {1179#true} call ULTIMATE.init(); {1199#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 16:26:28,411 INFO L280 TraceCheckUtils]: 1: Hoare triple {1199#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {1179#true} is VALID [2020-07-08 16:26:28,411 INFO L280 TraceCheckUtils]: 2: Hoare triple {1179#true} #valid := #valid[0 := 0]; {1179#true} is VALID [2020-07-08 16:26:28,412 INFO L280 TraceCheckUtils]: 3: Hoare triple {1179#true} assume 0 < #StackHeapBarrier; {1179#true} is VALID [2020-07-08 16:26:28,412 INFO L280 TraceCheckUtils]: 4: Hoare triple {1179#true} assume true; {1179#true} is VALID [2020-07-08 16:26:28,412 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {1179#true} {1179#true} #155#return; {1179#true} is VALID [2020-07-08 16:26:28,413 INFO L263 TraceCheckUtils]: 6: Hoare triple {1179#true} call #t~ret15 := main(); {1179#true} is VALID [2020-07-08 16:26:28,414 INFO L263 TraceCheckUtils]: 7: Hoare triple {1179#true} call #t~ret7.base, #t~ret7.offset := create_list(); {1200#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-08 16:26:28,414 INFO L280 TraceCheckUtils]: 8: Hoare triple {1200#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} SUMMARY for call ~#list~0.base, ~#list~0.offset := #Ultimate.allocOnStack(4); srcloc: create_listENTRY {1179#true} is VALID [2020-07-08 16:26:28,415 INFO L280 TraceCheckUtils]: 9: Hoare triple {1179#true} SUMMARY for call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4); srcloc: L570 {1179#true} is VALID [2020-07-08 16:26:28,415 INFO L280 TraceCheckUtils]: 10: Hoare triple {1179#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {1179#true} is VALID [2020-07-08 16:26:28,415 INFO L280 TraceCheckUtils]: 11: Hoare triple {1179#true} assume !(0 != #t~nondet4); {1179#true} is VALID [2020-07-08 16:26:28,416 INFO L280 TraceCheckUtils]: 12: Hoare triple {1179#true} havoc #t~nondet4; {1179#true} is VALID [2020-07-08 16:26:28,416 INFO L280 TraceCheckUtils]: 13: Hoare triple {1179#true} SUMMARY for call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~#list~0.base, ~#list~0.offset, 4); srcloc: L571-4 {1179#true} is VALID [2020-07-08 16:26:28,416 INFO L280 TraceCheckUtils]: 14: Hoare triple {1179#true} #res.base, #res.offset := #t~mem6.base, #t~mem6.offset; {1179#true} is VALID [2020-07-08 16:26:28,416 INFO L280 TraceCheckUtils]: 15: Hoare triple {1179#true} havoc #t~mem6.base, #t~mem6.offset; {1179#true} is VALID [2020-07-08 16:26:28,417 INFO L280 TraceCheckUtils]: 16: Hoare triple {1179#true} SUMMARY for call ULTIMATE.dealloc(~#list~0.base, ~#list~0.offset); srcloc: L570-2 {1179#true} is VALID [2020-07-08 16:26:28,417 INFO L280 TraceCheckUtils]: 17: Hoare triple {1179#true} havoc ~#list~0.base, ~#list~0.offset; {1179#true} is VALID [2020-07-08 16:26:28,417 INFO L280 TraceCheckUtils]: 18: Hoare triple {1179#true} assume true; {1179#true} is VALID [2020-07-08 16:26:28,418 INFO L275 TraceCheckUtils]: 19: Hoare quadruple {1179#true} {1179#true} #149#return; {1179#true} is VALID [2020-07-08 16:26:28,418 INFO L280 TraceCheckUtils]: 20: Hoare triple {1179#true} ~list~1.base, ~list~1.offset := #t~ret7.base, #t~ret7.offset; {1179#true} is VALID [2020-07-08 16:26:28,418 INFO L280 TraceCheckUtils]: 21: Hoare triple {1179#true} havoc #t~ret7.base, #t~ret7.offset; {1179#true} is VALID [2020-07-08 16:26:28,418 INFO L280 TraceCheckUtils]: 22: Hoare triple {1179#true} ~low~0.base, ~low~0.offset := 0, 0; {1179#true} is VALID [2020-07-08 16:26:28,420 INFO L280 TraceCheckUtils]: 23: Hoare triple {1179#true} ~high~0.base, ~high~0.offset := 0, 0; {1198#(and (= 0 main_~high~0.offset) (= 0 main_~high~0.base))} is VALID [2020-07-08 16:26:28,420 INFO L280 TraceCheckUtils]: 24: Hoare triple {1198#(and (= 0 main_~high~0.offset) (= 0 main_~high~0.base))} ~p~0.base, ~p~0.offset := ~list~1.base, ~list~1.offset; {1198#(and (= 0 main_~high~0.offset) (= 0 main_~high~0.base))} is VALID [2020-07-08 16:26:28,421 INFO L280 TraceCheckUtils]: 25: Hoare triple {1198#(and (= 0 main_~high~0.offset) (= 0 main_~high~0.base))} assume !(~p~0.base != 0 || ~p~0.offset != 0); {1198#(and (= 0 main_~high~0.offset) (= 0 main_~high~0.base))} is VALID [2020-07-08 16:26:28,422 INFO L280 TraceCheckUtils]: 26: Hoare triple {1198#(and (= 0 main_~high~0.offset) (= 0 main_~high~0.base))} assume !(~low~0.base != 0 || ~low~0.offset != 0); {1198#(and (= 0 main_~high~0.offset) (= 0 main_~high~0.base))} is VALID [2020-07-08 16:26:28,423 INFO L280 TraceCheckUtils]: 27: Hoare triple {1198#(and (= 0 main_~high~0.offset) (= 0 main_~high~0.base))} assume !!(~high~0.base != 0 || ~high~0.offset != 0); {1180#false} is VALID [2020-07-08 16:26:28,423 INFO L280 TraceCheckUtils]: 28: Hoare triple {1180#false} SUMMARY for call #t~mem13 := read~int(~high~0.base, ~high~0.offset, 4); srcloc: L598 {1180#false} is VALID [2020-07-08 16:26:28,424 INFO L280 TraceCheckUtils]: 29: Hoare triple {1180#false} assume !(1 == #t~mem13); {1180#false} is VALID [2020-07-08 16:26:28,424 INFO L280 TraceCheckUtils]: 30: Hoare triple {1180#false} havoc #t~mem13; {1180#false} is VALID [2020-07-08 16:26:28,424 INFO L280 TraceCheckUtils]: 31: Hoare triple {1180#false} assume !false; {1180#false} is VALID [2020-07-08 16:26:28,426 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 16:26:28,426 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:26:28,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [741456361] [2020-07-08 16:26:28,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:26:28,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 16:26:28,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992810775] [2020-07-08 16:26:28,428 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-07-08 16:26:28,428 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:26:28,428 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 16:26:28,458 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:28,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 16:26:28,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:26:28,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 16:26:28,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 16:26:28,459 INFO L87 Difference]: Start difference. First operand 70 states and 75 transitions. Second operand 5 states. [2020-07-08 16:26:28,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:28,955 INFO L93 Difference]: Finished difference Result 71 states and 76 transitions. [2020-07-08 16:26:28,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-08 16:26:28,955 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-07-08 16:26:28,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:26:28,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 16:26:28,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 76 transitions. [2020-07-08 16:26:28,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 16:26:28,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 76 transitions. [2020-07-08 16:26:28,970 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 76 transitions. [2020-07-08 16:26:29,060 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 76 edges. 76 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:29,060 INFO L225 Difference]: With dead ends: 71 [2020-07-08 16:26:29,061 INFO L226 Difference]: Without dead ends: 0 [2020-07-08 16:26:29,062 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-08 16:26:29,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-08 16:26:29,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-08 16:26:29,063 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:26:29,063 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-08 16:26:29,065 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-08 16:26:29,065 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-08 16:26:29,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:29,066 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-08 16:26:29,066 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 16:26:29,066 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:29,066 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:29,066 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-08 16:26:29,067 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-08 16:26:29,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:29,067 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-08 16:26:29,067 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 16:26:29,067 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:29,067 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:29,068 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:26:29,068 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:26:29,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-08 16:26:29,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-08 16:26:29,069 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2020-07-08 16:26:29,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:26:29,069 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-08 16:26:29,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 16:26:29,069 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2020-07-08 16:26:29,070 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:29,070 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 16:26:29,070 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:29,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-08 16:26:29,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-08 16:26:29,745 INFO L271 CegarLoopResult]: At program point L578-1(line 578) the Hoare annotation is: true [2020-07-08 16:26:29,746 INFO L271 CegarLoopResult]: At program point L576(line 576) the Hoare annotation is: true [2020-07-08 16:26:29,746 INFO L271 CegarLoopResult]: At program point L576-1(lines 570 577) the Hoare annotation is: true [2020-07-08 16:26:29,746 INFO L271 CegarLoopResult]: At program point L574(line 574) the Hoare annotation is: true [2020-07-08 16:26:29,746 INFO L271 CegarLoopResult]: At program point L572(line 572) the Hoare annotation is: true [2020-07-08 16:26:29,747 INFO L271 CegarLoopResult]: At program point L572-1(line 572) the Hoare annotation is: true [2020-07-08 16:26:29,747 INFO L271 CegarLoopResult]: At program point L570(line 570) the Hoare annotation is: true [2020-07-08 16:26:29,747 INFO L271 CegarLoopResult]: At program point L572-2(line 572) the Hoare annotation is: true [2020-07-08 16:26:29,747 INFO L271 CegarLoopResult]: At program point L570-2(line 570) the Hoare annotation is: true [2020-07-08 16:26:29,747 INFO L271 CegarLoopResult]: At program point L570-3(line 570) the Hoare annotation is: true [2020-07-08 16:26:29,747 INFO L271 CegarLoopResult]: At program point create_listEXIT(lines 569 579) the Hoare annotation is: true [2020-07-08 16:26:29,748 INFO L271 CegarLoopResult]: At program point L573(lines 573 576) the Hoare annotation is: true [2020-07-08 16:26:29,748 INFO L271 CegarLoopResult]: At program point L571(lines 571 577) the Hoare annotation is: true [2020-07-08 16:26:29,748 INFO L271 CegarLoopResult]: At program point L571-1(line 571) the Hoare annotation is: true [2020-07-08 16:26:29,748 INFO L271 CegarLoopResult]: At program point L571-3(line 571) the Hoare annotation is: true [2020-07-08 16:26:29,748 INFO L271 CegarLoopResult]: At program point L571-4(lines 571 577) the Hoare annotation is: true [2020-07-08 16:26:29,748 INFO L264 CegarLoopResult]: At program point create_listENTRY(lines 569 579) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-08 16:26:29,749 INFO L271 CegarLoopResult]: At program point create_listFINAL(lines 569 579) the Hoare annotation is: true [2020-07-08 16:26:29,749 INFO L271 CegarLoopResult]: At program point L578(line 578) the Hoare annotation is: true [2020-07-08 16:26:29,749 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (= |#valid| |old(#valid)|) [2020-07-08 16:26:29,749 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-07-08 16:26:29,749 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-08 16:26:29,749 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-07-08 16:26:29,750 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-08 16:26:29,750 INFO L268 CegarLoopResult]: For program point __bswap_32ENTRY(lines 64 68) no Hoare annotation was computed. [2020-07-08 16:26:29,751 INFO L268 CegarLoopResult]: For program point __bswap_32FINAL(lines 64 68) no Hoare annotation was computed. [2020-07-08 16:26:29,752 INFO L268 CegarLoopResult]: For program point __bswap_32EXIT(lines 64 68) no Hoare annotation was computed. [2020-07-08 16:26:29,752 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-08 16:26:29,752 INFO L268 CegarLoopResult]: For program point L67-1(line 67) no Hoare annotation was computed. [2020-07-08 16:26:29,752 INFO L268 CegarLoopResult]: For program point __bswap_64ENTRY(lines 69 73) no Hoare annotation was computed. [2020-07-08 16:26:29,753 INFO L268 CegarLoopResult]: For program point __bswap_64FINAL(lines 69 73) no Hoare annotation was computed. [2020-07-08 16:26:29,753 INFO L268 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-07-08 16:26:29,753 INFO L268 CegarLoopResult]: For program point L72-1(line 72) no Hoare annotation was computed. [2020-07-08 16:26:29,753 INFO L268 CegarLoopResult]: For program point __bswap_64EXIT(lines 69 73) no Hoare annotation was computed. [2020-07-08 16:26:29,753 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-08 16:26:29,753 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-08 16:26:29,753 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-08 16:26:29,754 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-08 16:26:29,754 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 580 602) the Hoare annotation is: true [2020-07-08 16:26:29,754 INFO L264 CegarLoopResult]: At program point L597-1(lines 580 602) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= 0 main_~low~0.offset) (= 0 main_~high~0.base) (= 0 main_~low~0.base)) [2020-07-08 16:26:29,755 INFO L271 CegarLoopResult]: At program point L597-2(lines 580 602) the Hoare annotation is: true [2020-07-08 16:26:29,756 INFO L264 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: false [2020-07-08 16:26:29,756 INFO L264 CegarLoopResult]: At program point L593-1(lines 593 594) the Hoare annotation is: false [2020-07-08 16:26:29,757 INFO L264 CegarLoopResult]: At program point L593-2(line 593) the Hoare annotation is: false [2020-07-08 16:26:29,757 INFO L264 CegarLoopResult]: At program point L593-4(line 593) the Hoare annotation is: false [2020-07-08 16:26:29,757 INFO L264 CegarLoopResult]: At program point L593-5(lines 593 594) the Hoare annotation is: false [2020-07-08 16:26:29,757 INFO L264 CegarLoopResult]: At program point L585-2(lines 585 591) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= 0 main_~low~0.offset) (= 0 main_~high~0.base) (= 0 main_~low~0.base)) [2020-07-08 16:26:29,758 INFO L271 CegarLoopResult]: At program point L581(line 581) the Hoare annotation is: true [2020-07-08 16:26:29,758 INFO L271 CegarLoopResult]: At program point L581-1(line 581) the Hoare annotation is: true [2020-07-08 16:26:29,758 INFO L264 CegarLoopResult]: At program point L598(line 598) the Hoare annotation is: false [2020-07-08 16:26:29,758 INFO L264 CegarLoopResult]: At program point L598-1(lines 598 599) the Hoare annotation is: false [2020-07-08 16:26:29,758 INFO L264 CegarLoopResult]: At program point L598-2(line 598) the Hoare annotation is: false [2020-07-08 16:26:29,759 INFO L264 CegarLoopResult]: At program point L594(line 594) the Hoare annotation is: false [2020-07-08 16:26:29,759 INFO L264 CegarLoopResult]: At program point L598-4(line 598) the Hoare annotation is: false [2020-07-08 16:26:29,759 INFO L264 CegarLoopResult]: At program point L598-5(lines 598 599) the Hoare annotation is: false [2020-07-08 16:26:29,759 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= 0 main_~low~0.offset) (= 0 main_~high~0.base) (= 0 main_~low~0.base)) [2020-07-08 16:26:29,759 INFO L264 CegarLoopResult]: At program point L586(line 586) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= 0 main_~low~0.offset) (= 0 main_~high~0.base) (= 0 main_~low~0.base)) [2020-07-08 16:26:29,760 INFO L264 CegarLoopResult]: At program point L586-1(line 586) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= 0 main_~low~0.offset) (= 0 main_~high~0.base) (= 0 main_~low~0.base)) [2020-07-08 16:26:29,760 INFO L264 CegarLoopResult]: At program point L586-2(line 586) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= 0 main_~low~0.offset) (= 0 main_~high~0.base) (= 0 main_~low~0.base)) [2020-07-08 16:26:29,760 INFO L271 CegarLoopResult]: At program point L582(line 582) the Hoare annotation is: true [2020-07-08 16:26:29,760 INFO L264 CegarLoopResult]: At program point L586-4(line 586) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= 0 main_~low~0.offset) (= 0 main_~high~0.base) (= 0 main_~low~0.base)) [2020-07-08 16:26:29,760 INFO L264 CegarLoopResult]: At program point L586-5(line 586) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= 0 main_~low~0.offset) (= 0 main_~high~0.base) (= 0 main_~low~0.base)) [2020-07-08 16:26:29,761 INFO L264 CegarLoopResult]: At program point L586-6(line 586) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= 0 main_~low~0.offset) (= 0 main_~high~0.base) (= 0 main_~low~0.base)) [2020-07-08 16:26:29,761 INFO L264 CegarLoopResult]: At program point L586-7(line 586) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= 0 main_~low~0.offset) (= 0 main_~high~0.base) (= 0 main_~low~0.base)) [2020-07-08 16:26:29,761 INFO L264 CegarLoopResult]: At program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 599) the Hoare annotation is: false [2020-07-08 16:26:29,763 INFO L264 CegarLoopResult]: At program point L599(line 599) the Hoare annotation is: false [2020-07-08 16:26:29,763 INFO L264 CegarLoopResult]: At program point L595(line 595) the Hoare annotation is: false [2020-07-08 16:26:29,763 INFO L264 CegarLoopResult]: At program point L595-1(line 595) the Hoare annotation is: false [2020-07-08 16:26:29,764 INFO L264 CegarLoopResult]: At program point L587(line 587) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= 0 main_~low~0.offset) (= 0 main_~high~0.base) (= 0 main_~low~0.base)) [2020-07-08 16:26:29,764 INFO L264 CegarLoopResult]: At program point L587-1(line 587) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= 0 main_~low~0.offset) (= 0 main_~high~0.base) (= 0 main_~low~0.base)) [2020-07-08 16:26:29,764 INFO L264 CegarLoopResult]: At program point L587-2(line 587) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= 0 main_~low~0.offset) (= 0 main_~high~0.base) (= 0 main_~low~0.base)) [2020-07-08 16:26:29,764 INFO L264 CegarLoopResult]: At program point L583(line 583) the Hoare annotation is: (and (= 0 main_~low~0.offset) (= 0 main_~low~0.base)) [2020-07-08 16:26:29,765 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 594) the Hoare annotation is: false [2020-07-08 16:26:29,765 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 580 602) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-08 16:26:29,765 INFO L264 CegarLoopResult]: At program point L600(line 600) the Hoare annotation is: false [2020-07-08 16:26:29,765 INFO L264 CegarLoopResult]: At program point L600-1(line 600) the Hoare annotation is: false [2020-07-08 16:26:29,765 INFO L264 CegarLoopResult]: At program point L592-1(lines 580 602) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= 0 main_~low~0.offset) (= 0 main_~high~0.base) (= 0 main_~low~0.base)) [2020-07-08 16:26:29,766 INFO L264 CegarLoopResult]: At program point L588(line 588) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= 0 main_~low~0.offset) (= 0 main_~high~0.base) (= 0 main_~low~0.base)) [2020-07-08 16:26:29,766 INFO L264 CegarLoopResult]: At program point L588-1(line 588) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= 0 main_~low~0.offset) (= 0 main_~high~0.base) (= 0 main_~low~0.base)) [2020-07-08 16:26:29,766 INFO L264 CegarLoopResult]: At program point L584(line 584) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= 0 main_~low~0.offset) (= 0 main_~high~0.base) (= 0 main_~low~0.base)) [2020-07-08 16:26:29,766 INFO L271 CegarLoopResult]: At program point append_to_listEXIT(lines 562 568) the Hoare annotation is: true [2020-07-08 16:26:29,766 INFO L271 CegarLoopResult]: At program point L566(line 566) the Hoare annotation is: true [2020-07-08 16:26:29,767 INFO L271 CegarLoopResult]: At program point L565(line 565) the Hoare annotation is: true [2020-07-08 16:26:29,767 INFO L264 CegarLoopResult]: At program point append_to_listENTRY(lines 562 568) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-08 16:26:29,767 INFO L271 CegarLoopResult]: At program point L564(line 564) the Hoare annotation is: true [2020-07-08 16:26:29,767 INFO L271 CegarLoopResult]: At program point L565-1(line 565) the Hoare annotation is: true [2020-07-08 16:26:29,767 INFO L264 CegarLoopResult]: At program point L563(line 563) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-08 16:26:29,768 INFO L271 CegarLoopResult]: At program point L564-1(line 564) the Hoare annotation is: true [2020-07-08 16:26:29,768 INFO L264 CegarLoopResult]: At program point L562(lines 562 568) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-08 16:26:29,768 INFO L271 CegarLoopResult]: At program point L563-1(line 563) the Hoare annotation is: true [2020-07-08 16:26:29,770 INFO L271 CegarLoopResult]: At program point L564-2(line 564) the Hoare annotation is: true [2020-07-08 16:26:29,770 INFO L264 CegarLoopResult]: At program point L562-1(lines 562 568) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-08 16:26:29,770 INFO L271 CegarLoopResult]: At program point append_to_listFINAL(lines 562 568) the Hoare annotation is: true [2020-07-08 16:26:29,776 WARN L170 areAnnotationChecker]: __bswap_32ENTRY has no Hoare annotation [2020-07-08 16:26:29,778 WARN L170 areAnnotationChecker]: __bswap_64ENTRY has no Hoare annotation [2020-07-08 16:26:29,780 WARN L170 areAnnotationChecker]: L67 has no Hoare annotation [2020-07-08 16:26:29,784 WARN L170 areAnnotationChecker]: L72 has no Hoare annotation [2020-07-08 16:26:29,786 WARN L170 areAnnotationChecker]: L67-1 has no Hoare annotation [2020-07-08 16:26:29,786 WARN L170 areAnnotationChecker]: L72-1 has no Hoare annotation [2020-07-08 16:26:29,787 WARN L170 areAnnotationChecker]: __bswap_32FINAL has no Hoare annotation [2020-07-08 16:26:29,787 WARN L170 areAnnotationChecker]: __bswap_64FINAL has no Hoare annotation [2020-07-08 16:26:29,808 INFO L163 areAnnotationChecker]: CFG has 95 edges. 95 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-08 16:26:29,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 04:26:29 BoogieIcfgContainer [2020-07-08 16:26:29,825 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 16:26:29,828 INFO L168 Benchmark]: Toolchain (without parser) took 6121.03 ms. Allocated memory was 137.9 MB in the beginning and 289.4 MB in the end (delta: 151.5 MB). Free memory was 101.0 MB in the beginning and 98.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 154.5 MB. Max. memory is 7.1 GB. [2020-07-08 16:26:29,829 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 137.9 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-08 16:26:29,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 621.73 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 100.8 MB in the beginning and 168.3 MB in the end (delta: -67.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2020-07-08 16:26:29,831 INFO L168 Benchmark]: Boogie Preprocessor took 101.37 ms. Allocated memory is still 202.9 MB. Free memory was 168.3 MB in the beginning and 164.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2020-07-08 16:26:29,832 INFO L168 Benchmark]: RCFGBuilder took 929.93 ms. Allocated memory is still 202.9 MB. Free memory was 164.7 MB in the beginning and 100.6 MB in the end (delta: 64.1 MB). Peak memory consumption was 64.1 MB. Max. memory is 7.1 GB. [2020-07-08 16:26:29,833 INFO L168 Benchmark]: TraceAbstraction took 4461.85 ms. Allocated memory was 202.9 MB in the beginning and 289.4 MB in the end (delta: 86.5 MB). Free memory was 99.9 MB in the beginning and 98.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB. [2020-07-08 16:26:29,838 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 0.28 ms. Allocated memory is still 137.9 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 621.73 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 100.8 MB in the beginning and 168.3 MB in the end (delta: -67.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.37 ms. Allocated memory is still 202.9 MB. Free memory was 168.3 MB in the beginning and 164.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 929.93 ms. Allocated memory is still 202.9 MB. Free memory was 164.7 MB in the beginning and 100.6 MB in the end (delta: 64.1 MB). Peak memory consumption was 64.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4461.85 ms. Allocated memory was 202.9 MB in the beginning and 289.4 MB in the end (delta: 86.5 MB). Free memory was 99.9 MB in the beginning and 98.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 594]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 599]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((0 == high && 0 == low) && 0 == high) && 0 == low - InvariantResult [Line: 570]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 569]: Procedure Contract for create_list Derived contract for procedure create_list: 1 - ProcedureContractResult [Line: 580]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 562]: Procedure Contract for append_to_list Derived contract for procedure append_to_list: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 93 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 217 SDtfs, 62 SDslu, 236 SDs, 0 SdLazy, 274 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred 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: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 83 LocationsWithAnnotation, 96 PreInvPairs, 128 NumberOfFragments, 394 HoareAnnotationTreeSize, 96 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 83 FomulaSimplificationsInter, 61 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, 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 correct! Received shutdown request...