/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 16:25:16,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 16:25:16,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 16:25:16,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 16:25:16,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 16:25:16,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 16:25:16,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 16:25:16,952 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 16:25:16,954 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 16:25:16,955 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 16:25:16,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 16:25:16,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 16:25:16,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 16:25:16,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 16:25:16,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 16:25:16,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 16:25:16,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 16:25:16,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 16:25:16,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 16:25:16,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 16:25:16,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 16:25:16,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 16:25:16,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 16:25:16,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 16:25:16,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-08 16:25:16,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-08 16:25:16,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-08 16:25:16,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-08 16:25:16,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-08 16:25:16,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-08 16:25:16,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 16:25:16,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 16:25:16,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 16:25:16,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 16:25:16,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 16:25:16,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 16:25:16,983 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 16:25:16,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 16:25:16,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 16:25:16,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 16:25:16,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 16:25:16,987 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 16:25:16,999 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 16:25:16,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 16:25:17,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 16:25:17,001 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 16:25:17,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 16:25:17,001 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 16:25:17,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 16:25:17,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 16:25:17,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 16:25:17,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 16:25:17,002 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 16:25:17,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 16:25:17,003 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 16:25:17,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 16:25:17,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 16:25:17,003 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 16:25:17,003 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 16:25:17,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 16:25:17,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 16:25:17,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 16:25:17,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 16:25:17,005 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 16:25:17,005 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-08 16:25:17,310 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 16:25:17,323 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 16:25:17,326 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 16:25:17,328 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 16:25:17,329 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 16:25:17,330 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-01-1.i [2020-07-08 16:25:17,413 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ae9baacc/1261b0128f384bb6bd4ca2cb89c52c0e/FLAG78a71b381 [2020-07-08 16:25:18,001 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 16:25:18,002 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i [2020-07-08 16:25:18,016 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ae9baacc/1261b0128f384bb6bd4ca2cb89c52c0e/FLAG78a71b381 [2020-07-08 16:25:18,247 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ae9baacc/1261b0128f384bb6bd4ca2cb89c52c0e [2020-07-08 16:25:18,258 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 16:25:18,261 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 16:25:18,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 16:25:18,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 16:25:18,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 16:25:18,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:25:18" (1/1) ... [2020-07-08 16:25:18,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4427a4fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:18, skipping insertion in model container [2020-07-08 16:25:18,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:25:18" (1/1) ... [2020-07-08 16:25:18,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 16:25:18,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 16:25:18,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:25:18,790 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 16:25:18,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:25:18,904 INFO L208 MainTranslator]: Completed translation [2020-07-08 16:25:18,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:18 WrapperNode [2020-07-08 16:25:18,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 16:25:18,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 16:25:18,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 16:25:18,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 16:25:18,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:18" (1/1) ... [2020-07-08 16:25:18,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:18" (1/1) ... [2020-07-08 16:25:18,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:18" (1/1) ... [2020-07-08 16:25:18,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:18" (1/1) ... [2020-07-08 16:25:18,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:18" (1/1) ... [2020-07-08 16:25:18,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:18" (1/1) ... [2020-07-08 16:25:18,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:18" (1/1) ... [2020-07-08 16:25:18,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 16:25:18,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 16:25:19,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 16:25:19,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 16:25:19,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 16:25:19,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 16:25:19,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 16:25:19,066 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 16:25:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-08 16:25:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-08 16:25:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-08 16:25:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-08 16:25:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-08 16:25:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-08 16:25:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-08 16:25:19,068 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-08 16:25:19,068 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-08 16:25:19,068 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-08 16:25:19,068 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-08 16:25:19,068 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-08 16:25:19,068 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-08 16:25:19,069 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-08 16:25:19,069 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-08 16:25:19,069 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-08 16:25:19,069 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-08 16:25:19,069 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-08 16:25:19,069 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-08 16:25:19,070 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-08 16:25:19,070 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-08 16:25:19,070 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-08 16:25:19,070 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-08 16:25:19,070 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-08 16:25:19,071 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-08 16:25:19,071 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-08 16:25:19,071 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-08 16:25:19,071 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-08 16:25:19,071 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-08 16:25:19,071 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-08 16:25:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-08 16:25:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-08 16:25:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-08 16:25:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-08 16:25:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-08 16:25:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-08 16:25:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-08 16:25:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-08 16:25:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-08 16:25:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-08 16:25:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-08 16:25:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-08 16:25:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-08 16:25:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-08 16:25:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-08 16:25:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-08 16:25:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-08 16:25:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-08 16:25:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-08 16:25:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-08 16:25:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-08 16:25:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-08 16:25:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-08 16:25:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-08 16:25:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-08 16:25:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-08 16:25:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-08 16:25:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-08 16:25:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-08 16:25:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-08 16:25:19,076 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-08 16:25:19,076 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-08 16:25:19,076 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-08 16:25:19,076 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-08 16:25:19,076 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-08 16:25:19,076 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-08 16:25:19,076 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-08 16:25:19,076 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-08 16:25:19,076 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-08 16:25:19,077 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-08 16:25:19,077 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-08 16:25:19,077 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-08 16:25:19,077 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-08 16:25:19,077 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-08 16:25:19,077 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-08 16:25:19,078 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-08 16:25:19,078 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-08 16:25:19,078 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-08 16:25:19,078 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-08 16:25:19,078 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-08 16:25:19,078 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-08 16:25:19,078 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-08 16:25:19,078 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-08 16:25:19,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-08 16:25:19,079 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-08 16:25:19,079 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-08 16:25:19,079 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-08 16:25:19,079 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-08 16:25:19,079 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-08 16:25:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-08 16:25:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-08 16:25:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-08 16:25:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-08 16:25:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-08 16:25:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-08 16:25:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-08 16:25:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-08 16:25:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-08 16:25:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-08 16:25:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-08 16:25:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-08 16:25:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-08 16:25:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-08 16:25:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-08 16:25:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 16:25:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 16:25:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-08 16:25:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-08 16:25:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-08 16:25:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 16:25:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 16:25:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 16:25:20,051 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 16:25:20,052 INFO L295 CfgBuilder]: Removed 30 assume(true) statements. [2020-07-08 16:25:20,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:25:20 BoogieIcfgContainer [2020-07-08 16:25:20,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 16:25:20,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 16:25:20,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 16:25:20,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 16:25:20,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 04:25:18" (1/3) ... [2020-07-08 16:25:20,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212c3bb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:25:20, skipping insertion in model container [2020-07-08 16:25:20,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:18" (2/3) ... [2020-07-08 16:25:20,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212c3bb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:25:20, skipping insertion in model container [2020-07-08 16:25:20,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:25:20" (3/3) ... [2020-07-08 16:25:20,066 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-01-1.i [2020-07-08 16:25:20,077 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 16:25:20,085 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-07-08 16:25:20,100 INFO L251 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-07-08 16:25:20,123 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 16:25:20,124 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 16:25:20,124 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-08 16:25:20,124 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 16:25:20,125 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 16:25:20,125 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 16:25:20,125 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 16:25:20,125 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 16:25:20,147 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2020-07-08 16:25:20,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-08 16:25:20,157 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:20,158 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:25:20,159 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:25:20,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:20,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1409190174, now seen corresponding path program 1 times [2020-07-08 16:25:20,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:20,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [116159044] [2020-07-08 16:25:20,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:20,485 INFO L280 TraceCheckUtils]: 0: Hoare triple {183#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {174#true} is VALID [2020-07-08 16:25:20,487 INFO L280 TraceCheckUtils]: 1: Hoare triple {174#true} #valid := #valid[0 := 0]; {174#true} is VALID [2020-07-08 16:25:20,487 INFO L280 TraceCheckUtils]: 2: Hoare triple {174#true} assume 0 < #StackHeapBarrier; {174#true} is VALID [2020-07-08 16:25:20,488 INFO L280 TraceCheckUtils]: 3: Hoare triple {174#true} assume true; {174#true} is VALID [2020-07-08 16:25:20,489 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {174#true} {174#true} #414#return; {174#true} is VALID [2020-07-08 16:25:20,493 INFO L263 TraceCheckUtils]: 0: Hoare triple {174#true} call ULTIMATE.init(); {183#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 16:25:20,493 INFO L280 TraceCheckUtils]: 1: Hoare triple {183#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {174#true} is VALID [2020-07-08 16:25:20,494 INFO L280 TraceCheckUtils]: 2: Hoare triple {174#true} #valid := #valid[0 := 0]; {174#true} is VALID [2020-07-08 16:25:20,494 INFO L280 TraceCheckUtils]: 3: Hoare triple {174#true} assume 0 < #StackHeapBarrier; {174#true} is VALID [2020-07-08 16:25:20,494 INFO L280 TraceCheckUtils]: 4: Hoare triple {174#true} assume true; {174#true} is VALID [2020-07-08 16:25:20,495 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {174#true} {174#true} #414#return; {174#true} is VALID [2020-07-08 16:25:20,495 INFO L263 TraceCheckUtils]: 6: Hoare triple {174#true} call #t~ret28 := main(); {174#true} is VALID [2020-07-08 16:25:20,496 INFO L280 TraceCheckUtils]: 7: Hoare triple {174#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {181#(not (= 0 |main_#t~malloc0.base|))} is VALID [2020-07-08 16:25:20,497 INFO L280 TraceCheckUtils]: 8: Hoare triple {181#(not (= 0 |main_#t~malloc0.base|))} ~list~0.base, ~list~0.offset := #t~malloc0.base, #t~malloc0.offset; {182#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:20,498 INFO L280 TraceCheckUtils]: 9: Hoare triple {182#(not (= 0 main_~list~0.base))} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {182#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:20,499 INFO L280 TraceCheckUtils]: 10: Hoare triple {182#(not (= 0 main_~list~0.base))} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {182#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:20,500 INFO L280 TraceCheckUtils]: 11: Hoare triple {182#(not (= 0 main_~list~0.base))} assume !(~list~0.base != 0 || ~list~0.offset != 0); {175#false} is VALID [2020-07-08 16:25:20,501 INFO L280 TraceCheckUtils]: 12: Hoare triple {175#false} assume !false; {175#false} is VALID [2020-07-08 16:25:20,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:25:20,503 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:20,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [116159044] [2020-07-08 16:25:20,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:25:20,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 16:25:20,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464841863] [2020-07-08 16:25:20,517 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-08 16:25:20,522 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:25:20,526 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 16:25:20,572 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:20,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 16:25:20,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:25:20,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 16:25:20,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 16:25:20,584 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 5 states. [2020-07-08 16:25:22,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:22,009 INFO L93 Difference]: Finished difference Result 359 states and 475 transitions. [2020-07-08 16:25:22,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-08 16:25:22,009 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-08 16:25:22,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:25:22,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 16:25:22,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 475 transitions. [2020-07-08 16:25:22,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 16:25:22,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 475 transitions. [2020-07-08 16:25:22,062 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 475 transitions. [2020-07-08 16:25:22,622 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 475 edges. 475 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:22,666 INFO L225 Difference]: With dead ends: 359 [2020-07-08 16:25:22,666 INFO L226 Difference]: Without dead ends: 194 [2020-07-08 16:25:22,676 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 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 16:25:22,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-07-08 16:25:22,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 164. [2020-07-08 16:25:22,984 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:25:22,985 INFO L82 GeneralOperation]: Start isEquivalent. First operand 194 states. Second operand 164 states. [2020-07-08 16:25:22,985 INFO L74 IsIncluded]: Start isIncluded. First operand 194 states. Second operand 164 states. [2020-07-08 16:25:22,985 INFO L87 Difference]: Start difference. First operand 194 states. Second operand 164 states. [2020-07-08 16:25:23,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:23,013 INFO L93 Difference]: Finished difference Result 194 states and 204 transitions. [2020-07-08 16:25:23,013 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 204 transitions. [2020-07-08 16:25:23,017 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:23,017 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:23,017 INFO L74 IsIncluded]: Start isIncluded. First operand 164 states. Second operand 194 states. [2020-07-08 16:25:23,018 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 194 states. [2020-07-08 16:25:23,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:23,037 INFO L93 Difference]: Finished difference Result 194 states and 204 transitions. [2020-07-08 16:25:23,037 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 204 transitions. [2020-07-08 16:25:23,049 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:23,049 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:23,049 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:25:23,049 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:25:23,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-07-08 16:25:23,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 173 transitions. [2020-07-08 16:25:23,066 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 173 transitions. Word has length 13 [2020-07-08 16:25:23,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:25:23,066 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 173 transitions. [2020-07-08 16:25:23,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 16:25:23,067 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 164 states and 173 transitions. [2020-07-08 16:25:23,270 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 173 edges. 173 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:23,270 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 173 transitions. [2020-07-08 16:25:23,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-08 16:25:23,271 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:23,272 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] [2020-07-08 16:25:23,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 16:25:23,273 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:25:23,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:23,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1469410252, now seen corresponding path program 1 times [2020-07-08 16:25:23,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:23,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1440691546] [2020-07-08 16:25:23,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:23,376 INFO L280 TraceCheckUtils]: 0: Hoare triple {1630#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {1622#true} is VALID [2020-07-08 16:25:23,376 INFO L280 TraceCheckUtils]: 1: Hoare triple {1622#true} #valid := #valid[0 := 0]; {1622#true} is VALID [2020-07-08 16:25:23,376 INFO L280 TraceCheckUtils]: 2: Hoare triple {1622#true} assume 0 < #StackHeapBarrier; {1622#true} is VALID [2020-07-08 16:25:23,376 INFO L280 TraceCheckUtils]: 3: Hoare triple {1622#true} assume true; {1622#true} is VALID [2020-07-08 16:25:23,377 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1622#true} {1622#true} #414#return; {1622#true} is VALID [2020-07-08 16:25:23,378 INFO L263 TraceCheckUtils]: 0: Hoare triple {1622#true} call ULTIMATE.init(); {1630#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 16:25:23,378 INFO L280 TraceCheckUtils]: 1: Hoare triple {1630#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {1622#true} is VALID [2020-07-08 16:25:23,378 INFO L280 TraceCheckUtils]: 2: Hoare triple {1622#true} #valid := #valid[0 := 0]; {1622#true} is VALID [2020-07-08 16:25:23,379 INFO L280 TraceCheckUtils]: 3: Hoare triple {1622#true} assume 0 < #StackHeapBarrier; {1622#true} is VALID [2020-07-08 16:25:23,379 INFO L280 TraceCheckUtils]: 4: Hoare triple {1622#true} assume true; {1622#true} is VALID [2020-07-08 16:25:23,379 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {1622#true} {1622#true} #414#return; {1622#true} is VALID [2020-07-08 16:25:23,379 INFO L263 TraceCheckUtils]: 6: Hoare triple {1622#true} call #t~ret28 := main(); {1622#true} is VALID [2020-07-08 16:25:23,380 INFO L280 TraceCheckUtils]: 7: Hoare triple {1622#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {1622#true} is VALID [2020-07-08 16:25:23,380 INFO L280 TraceCheckUtils]: 8: Hoare triple {1622#true} ~list~0.base, ~list~0.offset := #t~malloc0.base, #t~malloc0.offset; {1622#true} is VALID [2020-07-08 16:25:23,380 INFO L280 TraceCheckUtils]: 9: Hoare triple {1622#true} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {1622#true} is VALID [2020-07-08 16:25:23,380 INFO L280 TraceCheckUtils]: 10: Hoare triple {1622#true} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {1622#true} is VALID [2020-07-08 16:25:23,380 INFO L280 TraceCheckUtils]: 11: Hoare triple {1622#true} assume !!(~list~0.base != 0 || ~list~0.offset != 0); {1622#true} is VALID [2020-07-08 16:25:23,381 INFO L280 TraceCheckUtils]: 12: Hoare triple {1622#true} goto; {1622#true} is VALID [2020-07-08 16:25:23,381 INFO L280 TraceCheckUtils]: 13: Hoare triple {1622#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {1622#true} is VALID [2020-07-08 16:25:23,381 INFO L280 TraceCheckUtils]: 14: Hoare triple {1622#true} assume 0 != #t~nondet1; {1622#true} is VALID [2020-07-08 16:25:23,382 INFO L280 TraceCheckUtils]: 15: Hoare triple {1622#true} havoc #t~nondet1; {1622#true} is VALID [2020-07-08 16:25:23,382 INFO L280 TraceCheckUtils]: 16: Hoare triple {1622#true} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-7 {1622#true} is VALID [2020-07-08 16:25:23,382 INFO L280 TraceCheckUtils]: 17: Hoare triple {1622#true} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-34 {1622#true} is VALID [2020-07-08 16:25:23,382 INFO L280 TraceCheckUtils]: 18: Hoare triple {1622#true} #t~short7 := #t~mem5.base != 0 || #t~mem5.offset != 0; {1622#true} is VALID [2020-07-08 16:25:23,383 INFO L280 TraceCheckUtils]: 19: Hoare triple {1622#true} assume #t~short7; {1629#|main_#t~short7|} is VALID [2020-07-08 16:25:23,384 INFO L280 TraceCheckUtils]: 20: Hoare triple {1629#|main_#t~short7|} assume !#t~short7; {1623#false} is VALID [2020-07-08 16:25:23,384 INFO L280 TraceCheckUtils]: 21: Hoare triple {1623#false} havoc #t~mem6.base, #t~mem6.offset; {1623#false} is VALID [2020-07-08 16:25:23,385 INFO L280 TraceCheckUtils]: 22: Hoare triple {1623#false} havoc #t~mem5.base, #t~mem5.offset; {1623#false} is VALID [2020-07-08 16:25:23,385 INFO L280 TraceCheckUtils]: 23: Hoare triple {1623#false} havoc #t~short7; {1623#false} is VALID [2020-07-08 16:25:23,385 INFO L280 TraceCheckUtils]: 24: Hoare triple {1623#false} assume !false; {1623#false} is VALID [2020-07-08 16:25:23,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:25:23,401 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:23,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1440691546] [2020-07-08 16:25:23,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:25:23,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-08 16:25:23,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501147014] [2020-07-08 16:25:23,403 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-07-08 16:25:23,403 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:25:23,403 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-08 16:25:23,432 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:23,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-08 16:25:23,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:25:23,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-08 16:25:23,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-08 16:25:23,434 INFO L87 Difference]: Start difference. First operand 164 states and 173 transitions. Second operand 4 states. [2020-07-08 16:25:24,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:24,217 INFO L93 Difference]: Finished difference Result 170 states and 179 transitions. [2020-07-08 16:25:24,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-08 16:25:24,218 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-07-08 16:25:24,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:25:24,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 16:25:24,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 179 transitions. [2020-07-08 16:25:24,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 16:25:24,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 179 transitions. [2020-07-08 16:25:24,226 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 179 transitions. [2020-07-08 16:25:24,409 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 179 edges. 179 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:24,415 INFO L225 Difference]: With dead ends: 170 [2020-07-08 16:25:24,416 INFO L226 Difference]: Without dead ends: 165 [2020-07-08 16:25:24,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-08 16:25:24,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-07-08 16:25:24,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2020-07-08 16:25:24,696 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:25:24,696 INFO L82 GeneralOperation]: Start isEquivalent. First operand 165 states. Second operand 165 states. [2020-07-08 16:25:24,696 INFO L74 IsIncluded]: Start isIncluded. First operand 165 states. Second operand 165 states. [2020-07-08 16:25:24,696 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 165 states. [2020-07-08 16:25:24,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:24,703 INFO L93 Difference]: Finished difference Result 165 states and 174 transitions. [2020-07-08 16:25:24,703 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 174 transitions. [2020-07-08 16:25:24,704 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:24,704 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:24,704 INFO L74 IsIncluded]: Start isIncluded. First operand 165 states. Second operand 165 states. [2020-07-08 16:25:24,704 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 165 states. [2020-07-08 16:25:24,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:24,710 INFO L93 Difference]: Finished difference Result 165 states and 174 transitions. [2020-07-08 16:25:24,710 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 174 transitions. [2020-07-08 16:25:24,711 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:24,711 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:24,711 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:25:24,712 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:25:24,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-07-08 16:25:24,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 174 transitions. [2020-07-08 16:25:24,717 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 174 transitions. Word has length 25 [2020-07-08 16:25:24,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:25:24,718 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 174 transitions. [2020-07-08 16:25:24,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-08 16:25:24,718 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 165 states and 174 transitions. [2020-07-08 16:25:24,929 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 174 edges. 174 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:24,929 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 174 transitions. [2020-07-08 16:25:24,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-08 16:25:24,930 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:24,930 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] [2020-07-08 16:25:24,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 16:25:24,931 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:25:24,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:24,931 INFO L82 PathProgramCache]: Analyzing trace with hash -155961871, now seen corresponding path program 1 times [2020-07-08 16:25:24,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:24,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1028290036] [2020-07-08 16:25:24,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:24,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:25,080 INFO L280 TraceCheckUtils]: 0: Hoare triple {2645#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {2633#true} is VALID [2020-07-08 16:25:25,081 INFO L280 TraceCheckUtils]: 1: Hoare triple {2633#true} #valid := #valid[0 := 0]; {2633#true} is VALID [2020-07-08 16:25:25,081 INFO L280 TraceCheckUtils]: 2: Hoare triple {2633#true} assume 0 < #StackHeapBarrier; {2633#true} is VALID [2020-07-08 16:25:25,081 INFO L280 TraceCheckUtils]: 3: Hoare triple {2633#true} assume true; {2633#true} is VALID [2020-07-08 16:25:25,082 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {2633#true} {2633#true} #414#return; {2633#true} is VALID [2020-07-08 16:25:25,083 INFO L263 TraceCheckUtils]: 0: Hoare triple {2633#true} call ULTIMATE.init(); {2645#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 16:25:25,083 INFO L280 TraceCheckUtils]: 1: Hoare triple {2645#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {2633#true} is VALID [2020-07-08 16:25:25,083 INFO L280 TraceCheckUtils]: 2: Hoare triple {2633#true} #valid := #valid[0 := 0]; {2633#true} is VALID [2020-07-08 16:25:25,084 INFO L280 TraceCheckUtils]: 3: Hoare triple {2633#true} assume 0 < #StackHeapBarrier; {2633#true} is VALID [2020-07-08 16:25:25,084 INFO L280 TraceCheckUtils]: 4: Hoare triple {2633#true} assume true; {2633#true} is VALID [2020-07-08 16:25:25,084 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {2633#true} {2633#true} #414#return; {2633#true} is VALID [2020-07-08 16:25:25,085 INFO L263 TraceCheckUtils]: 6: Hoare triple {2633#true} call #t~ret28 := main(); {2633#true} is VALID [2020-07-08 16:25:25,085 INFO L280 TraceCheckUtils]: 7: Hoare triple {2633#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {2633#true} is VALID [2020-07-08 16:25:25,085 INFO L280 TraceCheckUtils]: 8: Hoare triple {2633#true} ~list~0.base, ~list~0.offset := #t~malloc0.base, #t~malloc0.offset; {2633#true} is VALID [2020-07-08 16:25:25,085 INFO L280 TraceCheckUtils]: 9: Hoare triple {2633#true} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {2633#true} is VALID [2020-07-08 16:25:25,086 INFO L280 TraceCheckUtils]: 10: Hoare triple {2633#true} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {2633#true} is VALID [2020-07-08 16:25:25,086 INFO L280 TraceCheckUtils]: 11: Hoare triple {2633#true} assume !!(~list~0.base != 0 || ~list~0.offset != 0); {2633#true} is VALID [2020-07-08 16:25:25,086 INFO L280 TraceCheckUtils]: 12: Hoare triple {2633#true} goto; {2633#true} is VALID [2020-07-08 16:25:25,087 INFO L280 TraceCheckUtils]: 13: Hoare triple {2633#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {2633#true} is VALID [2020-07-08 16:25:25,087 INFO L280 TraceCheckUtils]: 14: Hoare triple {2633#true} assume 0 != #t~nondet1; {2633#true} is VALID [2020-07-08 16:25:25,087 INFO L280 TraceCheckUtils]: 15: Hoare triple {2633#true} havoc #t~nondet1; {2633#true} is VALID [2020-07-08 16:25:25,087 INFO L280 TraceCheckUtils]: 16: Hoare triple {2633#true} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-7 {2633#true} is VALID [2020-07-08 16:25:25,088 INFO L280 TraceCheckUtils]: 17: Hoare triple {2633#true} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-34 {2640#(and (= |main_#t~mem5.offset| (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8)) |main_#t~mem5.base|))} is VALID [2020-07-08 16:25:25,089 INFO L280 TraceCheckUtils]: 18: Hoare triple {2640#(and (= |main_#t~mem5.offset| (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8)) |main_#t~mem5.base|))} #t~short7 := #t~mem5.base != 0 || #t~mem5.offset != 0; {2641#(or |main_#t~short7| (and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8)))))} is VALID [2020-07-08 16:25:25,090 INFO L280 TraceCheckUtils]: 19: Hoare triple {2641#(or |main_#t~short7| (and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8)))))} assume !#t~short7; {2642#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:25:25,091 INFO L280 TraceCheckUtils]: 20: Hoare triple {2642#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} SUMMARY for call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-22 {2643#(and (= 0 |main_#t~mem6.offset|) (= 0 |main_#t~mem6.base|))} is VALID [2020-07-08 16:25:25,091 INFO L280 TraceCheckUtils]: 21: Hoare triple {2643#(and (= 0 |main_#t~mem6.offset|) (= 0 |main_#t~mem6.base|))} #t~short7 := #t~mem6.base == 0 && #t~mem6.offset == 0; {2644#|main_#t~short7|} is VALID [2020-07-08 16:25:25,092 INFO L280 TraceCheckUtils]: 22: Hoare triple {2644#|main_#t~short7|} assume !#t~short7; {2634#false} is VALID [2020-07-08 16:25:25,092 INFO L280 TraceCheckUtils]: 23: Hoare triple {2634#false} havoc #t~mem6.base, #t~mem6.offset; {2634#false} is VALID [2020-07-08 16:25:25,092 INFO L280 TraceCheckUtils]: 24: Hoare triple {2634#false} havoc #t~mem5.base, #t~mem5.offset; {2634#false} is VALID [2020-07-08 16:25:25,092 INFO L280 TraceCheckUtils]: 25: Hoare triple {2634#false} havoc #t~short7; {2634#false} is VALID [2020-07-08 16:25:25,093 INFO L280 TraceCheckUtils]: 26: Hoare triple {2634#false} assume !false; {2634#false} is VALID [2020-07-08 16:25:25,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:25:25,095 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:25,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1028290036] [2020-07-08 16:25:25,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:25:25,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-08 16:25:25,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706930222] [2020-07-08 16:25:25,096 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2020-07-08 16:25:25,096 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:25:25,096 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-08 16:25:25,132 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:25,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-08 16:25:25,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:25:25,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-08 16:25:25,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-07-08 16:25:25,134 INFO L87 Difference]: Start difference. First operand 165 states and 174 transitions. Second operand 8 states. [2020-07-08 16:25:27,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:27,086 INFO L93 Difference]: Finished difference Result 254 states and 269 transitions. [2020-07-08 16:25:27,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-08 16:25:27,087 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2020-07-08 16:25:27,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:25:27,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-08 16:25:27,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 269 transitions. [2020-07-08 16:25:27,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-08 16:25:27,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 269 transitions. [2020-07-08 16:25:27,100 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 269 transitions. [2020-07-08 16:25:27,421 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 269 edges. 269 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:27,429 INFO L225 Difference]: With dead ends: 254 [2020-07-08 16:25:27,429 INFO L226 Difference]: Without dead ends: 249 [2020-07-08 16:25:27,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-07-08 16:25:27,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-07-08 16:25:27,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 159. [2020-07-08 16:25:27,765 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:25:27,765 INFO L82 GeneralOperation]: Start isEquivalent. First operand 249 states. Second operand 159 states. [2020-07-08 16:25:27,765 INFO L74 IsIncluded]: Start isIncluded. First operand 249 states. Second operand 159 states. [2020-07-08 16:25:27,765 INFO L87 Difference]: Start difference. First operand 249 states. Second operand 159 states. [2020-07-08 16:25:27,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:27,775 INFO L93 Difference]: Finished difference Result 249 states and 264 transitions. [2020-07-08 16:25:27,776 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 264 transitions. [2020-07-08 16:25:27,776 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:27,776 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:27,777 INFO L74 IsIncluded]: Start isIncluded. First operand 159 states. Second operand 249 states. [2020-07-08 16:25:27,777 INFO L87 Difference]: Start difference. First operand 159 states. Second operand 249 states. [2020-07-08 16:25:27,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:27,786 INFO L93 Difference]: Finished difference Result 249 states and 264 transitions. [2020-07-08 16:25:27,786 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 264 transitions. [2020-07-08 16:25:27,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:27,787 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:27,787 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:25:27,787 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:25:27,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-07-08 16:25:27,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 168 transitions. [2020-07-08 16:25:27,793 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 168 transitions. Word has length 27 [2020-07-08 16:25:27,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:25:27,793 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 168 transitions. [2020-07-08 16:25:27,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-08 16:25:27,794 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 159 states and 168 transitions. [2020-07-08 16:25:28,034 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 168 edges. 168 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:28,035 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 168 transitions. [2020-07-08 16:25:28,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-08 16:25:28,036 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:28,036 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, 1] [2020-07-08 16:25:28,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-08 16:25:28,037 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:25:28,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:28,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1500955686, now seen corresponding path program 1 times [2020-07-08 16:25:28,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:28,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [386543288] [2020-07-08 16:25:28,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:28,148 INFO L280 TraceCheckUtils]: 0: Hoare triple {3996#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {3986#true} is VALID [2020-07-08 16:25:28,149 INFO L280 TraceCheckUtils]: 1: Hoare triple {3986#true} #valid := #valid[0 := 0]; {3986#true} is VALID [2020-07-08 16:25:28,149 INFO L280 TraceCheckUtils]: 2: Hoare triple {3986#true} assume 0 < #StackHeapBarrier; {3986#true} is VALID [2020-07-08 16:25:28,149 INFO L280 TraceCheckUtils]: 3: Hoare triple {3986#true} assume true; {3986#true} is VALID [2020-07-08 16:25:28,150 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {3986#true} {3986#true} #414#return; {3986#true} is VALID [2020-07-08 16:25:28,157 INFO L263 TraceCheckUtils]: 0: Hoare triple {3986#true} call ULTIMATE.init(); {3996#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 16:25:28,157 INFO L280 TraceCheckUtils]: 1: Hoare triple {3996#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {3986#true} is VALID [2020-07-08 16:25:28,157 INFO L280 TraceCheckUtils]: 2: Hoare triple {3986#true} #valid := #valid[0 := 0]; {3986#true} is VALID [2020-07-08 16:25:28,158 INFO L280 TraceCheckUtils]: 3: Hoare triple {3986#true} assume 0 < #StackHeapBarrier; {3986#true} is VALID [2020-07-08 16:25:28,158 INFO L280 TraceCheckUtils]: 4: Hoare triple {3986#true} assume true; {3986#true} is VALID [2020-07-08 16:25:28,158 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {3986#true} {3986#true} #414#return; {3986#true} is VALID [2020-07-08 16:25:28,158 INFO L263 TraceCheckUtils]: 6: Hoare triple {3986#true} call #t~ret28 := main(); {3986#true} is VALID [2020-07-08 16:25:28,158 INFO L280 TraceCheckUtils]: 7: Hoare triple {3986#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {3986#true} is VALID [2020-07-08 16:25:28,159 INFO L280 TraceCheckUtils]: 8: Hoare triple {3986#true} ~list~0.base, ~list~0.offset := #t~malloc0.base, #t~malloc0.offset; {3986#true} is VALID [2020-07-08 16:25:28,159 INFO L280 TraceCheckUtils]: 9: Hoare triple {3986#true} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {3986#true} is VALID [2020-07-08 16:25:28,159 INFO L280 TraceCheckUtils]: 10: Hoare triple {3986#true} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {3986#true} is VALID [2020-07-08 16:25:28,159 INFO L280 TraceCheckUtils]: 11: Hoare triple {3986#true} assume !!(~list~0.base != 0 || ~list~0.offset != 0); {3986#true} is VALID [2020-07-08 16:25:28,159 INFO L280 TraceCheckUtils]: 12: Hoare triple {3986#true} goto; {3986#true} is VALID [2020-07-08 16:25:28,160 INFO L280 TraceCheckUtils]: 13: Hoare triple {3986#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {3986#true} is VALID [2020-07-08 16:25:28,160 INFO L280 TraceCheckUtils]: 14: Hoare triple {3986#true} assume 0 != #t~nondet1; {3986#true} is VALID [2020-07-08 16:25:28,160 INFO L280 TraceCheckUtils]: 15: Hoare triple {3986#true} havoc #t~nondet1; {3986#true} is VALID [2020-07-08 16:25:28,161 INFO L280 TraceCheckUtils]: 16: Hoare triple {3986#true} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-7 {3993#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:25:28,162 INFO L280 TraceCheckUtils]: 17: Hoare triple {3993#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-34 {3994#(and (= 0 |main_#t~mem5.offset|) (= 0 |main_#t~mem5.base|))} is VALID [2020-07-08 16:25:28,163 INFO L280 TraceCheckUtils]: 18: Hoare triple {3994#(and (= 0 |main_#t~mem5.offset|) (= 0 |main_#t~mem5.base|))} #t~short7 := #t~mem5.base != 0 || #t~mem5.offset != 0; {3995#(not |main_#t~short7|)} is VALID [2020-07-08 16:25:28,163 INFO L280 TraceCheckUtils]: 19: Hoare triple {3995#(not |main_#t~short7|)} assume #t~short7; {3987#false} is VALID [2020-07-08 16:25:28,164 INFO L280 TraceCheckUtils]: 20: Hoare triple {3987#false} assume !!#t~short7; {3987#false} is VALID [2020-07-08 16:25:28,164 INFO L280 TraceCheckUtils]: 21: Hoare triple {3987#false} havoc #t~mem6.base, #t~mem6.offset; {3987#false} is VALID [2020-07-08 16:25:28,164 INFO L280 TraceCheckUtils]: 22: Hoare triple {3987#false} havoc #t~mem5.base, #t~mem5.offset; {3987#false} is VALID [2020-07-08 16:25:28,164 INFO L280 TraceCheckUtils]: 23: Hoare triple {3987#false} havoc #t~short7; {3987#false} is VALID [2020-07-08 16:25:28,164 INFO L280 TraceCheckUtils]: 24: Hoare triple {3987#false} goto; {3987#false} is VALID [2020-07-08 16:25:28,165 INFO L280 TraceCheckUtils]: 25: Hoare triple {3987#false} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {3987#false} is VALID [2020-07-08 16:25:28,165 INFO L280 TraceCheckUtils]: 26: Hoare triple {3987#false} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {3987#false} is VALID [2020-07-08 16:25:28,165 INFO L280 TraceCheckUtils]: 27: Hoare triple {3987#false} assume !(0 != #t~nondet8); {3987#false} is VALID [2020-07-08 16:25:28,165 INFO L280 TraceCheckUtils]: 28: Hoare triple {3987#false} havoc #t~nondet8; {3987#false} is VALID [2020-07-08 16:25:28,165 INFO L280 TraceCheckUtils]: 29: Hoare triple {3987#false} ~end~0.base, ~end~0.offset := 0, 0; {3987#false} is VALID [2020-07-08 16:25:28,166 INFO L280 TraceCheckUtils]: 30: Hoare triple {3987#false} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {3987#false} is VALID [2020-07-08 16:25:28,166 INFO L280 TraceCheckUtils]: 31: Hoare triple {3987#false} assume !(0 != ~end~0.base || 0 != ~end~0.offset); {3987#false} is VALID [2020-07-08 16:25:28,166 INFO L280 TraceCheckUtils]: 32: Hoare triple {3987#false} assume !false; {3987#false} is VALID [2020-07-08 16:25:28,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:25:28,168 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:28,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [386543288] [2020-07-08 16:25:28,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:25:28,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-08 16:25:28,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707382615] [2020-07-08 16:25:28,169 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-07-08 16:25:28,170 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:25:28,170 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-08 16:25:28,214 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:28,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-08 16:25:28,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:25:28,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-08 16:25:28,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-08 16:25:28,215 INFO L87 Difference]: Start difference. First operand 159 states and 168 transitions. Second operand 6 states. [2020-07-08 16:25:29,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:29,849 INFO L93 Difference]: Finished difference Result 377 states and 399 transitions. [2020-07-08 16:25:29,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-08 16:25:29,850 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-07-08 16:25:29,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:25:29,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-08 16:25:29,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 399 transitions. [2020-07-08 16:25:29,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-08 16:25:29,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 399 transitions. [2020-07-08 16:25:29,862 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 399 transitions. [2020-07-08 16:25:30,307 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 399 edges. 399 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:30,313 INFO L225 Difference]: With dead ends: 377 [2020-07-08 16:25:30,313 INFO L226 Difference]: Without dead ends: 249 [2020-07-08 16:25:30,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-08 16:25:30,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-07-08 16:25:30,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 162. [2020-07-08 16:25:30,626 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:25:30,626 INFO L82 GeneralOperation]: Start isEquivalent. First operand 249 states. Second operand 162 states. [2020-07-08 16:25:30,626 INFO L74 IsIncluded]: Start isIncluded. First operand 249 states. Second operand 162 states. [2020-07-08 16:25:30,626 INFO L87 Difference]: Start difference. First operand 249 states. Second operand 162 states. [2020-07-08 16:25:30,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:30,639 INFO L93 Difference]: Finished difference Result 249 states and 263 transitions. [2020-07-08 16:25:30,639 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 263 transitions. [2020-07-08 16:25:30,639 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:30,640 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:30,640 INFO L74 IsIncluded]: Start isIncluded. First operand 162 states. Second operand 249 states. [2020-07-08 16:25:30,640 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 249 states. [2020-07-08 16:25:30,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:30,650 INFO L93 Difference]: Finished difference Result 249 states and 263 transitions. [2020-07-08 16:25:30,650 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 263 transitions. [2020-07-08 16:25:30,651 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:30,651 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:30,651 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:25:30,651 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:25:30,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-07-08 16:25:30,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 171 transitions. [2020-07-08 16:25:30,657 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 171 transitions. Word has length 33 [2020-07-08 16:25:30,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:25:30,660 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 171 transitions. [2020-07-08 16:25:30,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-08 16:25:30,663 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 162 states and 171 transitions. [2020-07-08 16:25:30,912 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 171 edges. 171 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:30,912 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 171 transitions. [2020-07-08 16:25:30,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-08 16:25:30,913 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:30,913 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, 1, 1, 1] [2020-07-08 16:25:30,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-08 16:25:30,913 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:25:30,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:30,914 INFO L82 PathProgramCache]: Analyzing trace with hash -820684573, now seen corresponding path program 1 times [2020-07-08 16:25:30,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:30,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946098761] [2020-07-08 16:25:30,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:31,073 INFO L280 TraceCheckUtils]: 0: Hoare triple {5589#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {5579#true} is VALID [2020-07-08 16:25:31,073 INFO L280 TraceCheckUtils]: 1: Hoare triple {5579#true} #valid := #valid[0 := 0]; {5579#true} is VALID [2020-07-08 16:25:31,074 INFO L280 TraceCheckUtils]: 2: Hoare triple {5579#true} assume 0 < #StackHeapBarrier; {5579#true} is VALID [2020-07-08 16:25:31,074 INFO L280 TraceCheckUtils]: 3: Hoare triple {5579#true} assume true; {5579#true} is VALID [2020-07-08 16:25:31,074 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {5579#true} {5579#true} #414#return; {5579#true} is VALID [2020-07-08 16:25:31,075 INFO L263 TraceCheckUtils]: 0: Hoare triple {5579#true} call ULTIMATE.init(); {5589#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 16:25:31,076 INFO L280 TraceCheckUtils]: 1: Hoare triple {5589#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {5579#true} is VALID [2020-07-08 16:25:31,076 INFO L280 TraceCheckUtils]: 2: Hoare triple {5579#true} #valid := #valid[0 := 0]; {5579#true} is VALID [2020-07-08 16:25:31,076 INFO L280 TraceCheckUtils]: 3: Hoare triple {5579#true} assume 0 < #StackHeapBarrier; {5579#true} is VALID [2020-07-08 16:25:31,077 INFO L280 TraceCheckUtils]: 4: Hoare triple {5579#true} assume true; {5579#true} is VALID [2020-07-08 16:25:31,077 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {5579#true} {5579#true} #414#return; {5579#true} is VALID [2020-07-08 16:25:31,077 INFO L263 TraceCheckUtils]: 6: Hoare triple {5579#true} call #t~ret28 := main(); {5579#true} is VALID [2020-07-08 16:25:31,078 INFO L280 TraceCheckUtils]: 7: Hoare triple {5579#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {5586#(not (= 0 |main_#t~malloc0.base|))} is VALID [2020-07-08 16:25:31,079 INFO L280 TraceCheckUtils]: 8: Hoare triple {5586#(not (= 0 |main_#t~malloc0.base|))} ~list~0.base, ~list~0.offset := #t~malloc0.base, #t~malloc0.offset; {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,079 INFO L280 TraceCheckUtils]: 9: Hoare triple {5587#(not (= 0 main_~list~0.base))} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,080 INFO L280 TraceCheckUtils]: 10: Hoare triple {5587#(not (= 0 main_~list~0.base))} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,081 INFO L280 TraceCheckUtils]: 11: Hoare triple {5587#(not (= 0 main_~list~0.base))} assume !!(~list~0.base != 0 || ~list~0.offset != 0); {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,081 INFO L280 TraceCheckUtils]: 12: Hoare triple {5587#(not (= 0 main_~list~0.base))} goto; {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,082 INFO L280 TraceCheckUtils]: 13: Hoare triple {5587#(not (= 0 main_~list~0.base))} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,082 INFO L280 TraceCheckUtils]: 14: Hoare triple {5587#(not (= 0 main_~list~0.base))} assume 0 != #t~nondet1; {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,083 INFO L280 TraceCheckUtils]: 15: Hoare triple {5587#(not (= 0 main_~list~0.base))} havoc #t~nondet1; {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,084 INFO L280 TraceCheckUtils]: 16: Hoare triple {5587#(not (= 0 main_~list~0.base))} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-7 {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,084 INFO L280 TraceCheckUtils]: 17: Hoare triple {5587#(not (= 0 main_~list~0.base))} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-34 {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,085 INFO L280 TraceCheckUtils]: 18: Hoare triple {5587#(not (= 0 main_~list~0.base))} #t~short7 := #t~mem5.base != 0 || #t~mem5.offset != 0; {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,086 INFO L280 TraceCheckUtils]: 19: Hoare triple {5587#(not (= 0 main_~list~0.base))} assume !#t~short7; {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,086 INFO L280 TraceCheckUtils]: 20: Hoare triple {5587#(not (= 0 main_~list~0.base))} SUMMARY for call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-22 {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,087 INFO L280 TraceCheckUtils]: 21: Hoare triple {5587#(not (= 0 main_~list~0.base))} #t~short7 := #t~mem6.base == 0 && #t~mem6.offset == 0; {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,088 INFO L280 TraceCheckUtils]: 22: Hoare triple {5587#(not (= 0 main_~list~0.base))} assume !!#t~short7; {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,089 INFO L280 TraceCheckUtils]: 23: Hoare triple {5587#(not (= 0 main_~list~0.base))} havoc #t~mem6.base, #t~mem6.offset; {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,089 INFO L280 TraceCheckUtils]: 24: Hoare triple {5587#(not (= 0 main_~list~0.base))} havoc #t~mem5.base, #t~mem5.offset; {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,090 INFO L280 TraceCheckUtils]: 25: Hoare triple {5587#(not (= 0 main_~list~0.base))} havoc #t~short7; {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,091 INFO L280 TraceCheckUtils]: 26: Hoare triple {5587#(not (= 0 main_~list~0.base))} goto; {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,091 INFO L280 TraceCheckUtils]: 27: Hoare triple {5587#(not (= 0 main_~list~0.base))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,092 INFO L280 TraceCheckUtils]: 28: Hoare triple {5587#(not (= 0 main_~list~0.base))} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,093 INFO L280 TraceCheckUtils]: 29: Hoare triple {5587#(not (= 0 main_~list~0.base))} assume !(0 != #t~nondet8); {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,093 INFO L280 TraceCheckUtils]: 30: Hoare triple {5587#(not (= 0 main_~list~0.base))} havoc #t~nondet8; {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,094 INFO L280 TraceCheckUtils]: 31: Hoare triple {5587#(not (= 0 main_~list~0.base))} ~end~0.base, ~end~0.offset := 0, 0; {5587#(not (= 0 main_~list~0.base))} is VALID [2020-07-08 16:25:31,094 INFO L280 TraceCheckUtils]: 32: Hoare triple {5587#(not (= 0 main_~list~0.base))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {5588#(not (= 0 main_~end~0.base))} is VALID [2020-07-08 16:25:31,095 INFO L280 TraceCheckUtils]: 33: Hoare triple {5588#(not (= 0 main_~end~0.base))} assume !(0 != ~end~0.base || 0 != ~end~0.offset); {5580#false} is VALID [2020-07-08 16:25:31,095 INFO L280 TraceCheckUtils]: 34: Hoare triple {5580#false} assume !false; {5580#false} is VALID [2020-07-08 16:25:31,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:25:31,098 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:31,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946098761] [2020-07-08 16:25:31,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:25:31,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-08 16:25:31,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289694917] [2020-07-08 16:25:31,100 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-07-08 16:25:31,100 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:25:31,100 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-08 16:25:31,140 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:31,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-08 16:25:31,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:25:31,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-08 16:25:31,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-08 16:25:31,141 INFO L87 Difference]: Start difference. First operand 162 states and 171 transitions. Second operand 6 states. [2020-07-08 16:25:32,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:32,639 INFO L93 Difference]: Finished difference Result 270 states and 285 transitions. [2020-07-08 16:25:32,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-08 16:25:32,639 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-07-08 16:25:32,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:25:32,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-08 16:25:32,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 282 transitions. [2020-07-08 16:25:32,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-08 16:25:32,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 282 transitions. [2020-07-08 16:25:32,661 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 282 transitions. [2020-07-08 16:25:32,984 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 282 edges. 282 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:32,990 INFO L225 Difference]: With dead ends: 270 [2020-07-08 16:25:32,990 INFO L226 Difference]: Without dead ends: 238 [2020-07-08 16:25:32,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-08 16:25:32,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-07-08 16:25:33,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 161. [2020-07-08 16:25:33,371 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:25:33,371 INFO L82 GeneralOperation]: Start isEquivalent. First operand 238 states. Second operand 161 states. [2020-07-08 16:25:33,372 INFO L74 IsIncluded]: Start isIncluded. First operand 238 states. Second operand 161 states. [2020-07-08 16:25:33,372 INFO L87 Difference]: Start difference. First operand 238 states. Second operand 161 states. [2020-07-08 16:25:33,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:33,379 INFO L93 Difference]: Finished difference Result 238 states and 251 transitions. [2020-07-08 16:25:33,380 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 251 transitions. [2020-07-08 16:25:33,380 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:33,380 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:33,381 INFO L74 IsIncluded]: Start isIncluded. First operand 161 states. Second operand 238 states. [2020-07-08 16:25:33,381 INFO L87 Difference]: Start difference. First operand 161 states. Second operand 238 states. [2020-07-08 16:25:33,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:33,389 INFO L93 Difference]: Finished difference Result 238 states and 251 transitions. [2020-07-08 16:25:33,389 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 251 transitions. [2020-07-08 16:25:33,389 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:33,390 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:33,390 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:25:33,390 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:25:33,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-07-08 16:25:33,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 170 transitions. [2020-07-08 16:25:33,394 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 170 transitions. Word has length 35 [2020-07-08 16:25:33,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:25:33,395 INFO L479 AbstractCegarLoop]: Abstraction has 161 states and 170 transitions. [2020-07-08 16:25:33,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-08 16:25:33,395 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 161 states and 170 transitions. [2020-07-08 16:25:33,683 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 170 edges. 170 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:33,684 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 170 transitions. [2020-07-08 16:25:33,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-08 16:25:33,685 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:33,686 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:25:33,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-08 16:25:33,686 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:25:33,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:33,687 INFO L82 PathProgramCache]: Analyzing trace with hash -2091807586, now seen corresponding path program 1 times [2020-07-08 16:25:33,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:33,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1078170811] [2020-07-08 16:25:33,688 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:33,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:33,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:33,928 INFO L280 TraceCheckUtils]: 0: Hoare triple {6950#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {6934#true} is VALID [2020-07-08 16:25:33,928 INFO L280 TraceCheckUtils]: 1: Hoare triple {6934#true} #valid := #valid[0 := 0]; {6934#true} is VALID [2020-07-08 16:25:33,929 INFO L280 TraceCheckUtils]: 2: Hoare triple {6934#true} assume 0 < #StackHeapBarrier; {6934#true} is VALID [2020-07-08 16:25:33,929 INFO L280 TraceCheckUtils]: 3: Hoare triple {6934#true} assume true; {6934#true} is VALID [2020-07-08 16:25:33,929 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {6934#true} {6934#true} #414#return; {6934#true} is VALID [2020-07-08 16:25:33,930 INFO L263 TraceCheckUtils]: 0: Hoare triple {6934#true} call ULTIMATE.init(); {6950#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 16:25:33,930 INFO L280 TraceCheckUtils]: 1: Hoare triple {6950#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {6934#true} is VALID [2020-07-08 16:25:33,931 INFO L280 TraceCheckUtils]: 2: Hoare triple {6934#true} #valid := #valid[0 := 0]; {6934#true} is VALID [2020-07-08 16:25:33,931 INFO L280 TraceCheckUtils]: 3: Hoare triple {6934#true} assume 0 < #StackHeapBarrier; {6934#true} is VALID [2020-07-08 16:25:33,931 INFO L280 TraceCheckUtils]: 4: Hoare triple {6934#true} assume true; {6934#true} is VALID [2020-07-08 16:25:33,931 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {6934#true} {6934#true} #414#return; {6934#true} is VALID [2020-07-08 16:25:33,931 INFO L263 TraceCheckUtils]: 6: Hoare triple {6934#true} call #t~ret28 := main(); {6934#true} is VALID [2020-07-08 16:25:33,938 INFO L280 TraceCheckUtils]: 7: Hoare triple {6934#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {6941#(= 1 (select |#valid| |main_#t~malloc0.base|))} is VALID [2020-07-08 16:25:33,940 INFO L280 TraceCheckUtils]: 8: Hoare triple {6941#(= 1 (select |#valid| |main_#t~malloc0.base|))} ~list~0.base, ~list~0.offset := #t~malloc0.base, #t~malloc0.offset; {6942#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-08 16:25:33,941 INFO L280 TraceCheckUtils]: 9: Hoare triple {6942#(= 1 (select |#valid| main_~list~0.base))} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {6942#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-08 16:25:33,941 INFO L280 TraceCheckUtils]: 10: Hoare triple {6942#(= 1 (select |#valid| main_~list~0.base))} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {6942#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-08 16:25:33,942 INFO L280 TraceCheckUtils]: 11: Hoare triple {6942#(= 1 (select |#valid| main_~list~0.base))} assume !!(~list~0.base != 0 || ~list~0.offset != 0); {6942#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-08 16:25:33,943 INFO L280 TraceCheckUtils]: 12: Hoare triple {6942#(= 1 (select |#valid| main_~list~0.base))} goto; {6942#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-08 16:25:33,944 INFO L280 TraceCheckUtils]: 13: Hoare triple {6942#(= 1 (select |#valid| main_~list~0.base))} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {6942#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-08 16:25:33,944 INFO L280 TraceCheckUtils]: 14: Hoare triple {6942#(= 1 (select |#valid| main_~list~0.base))} assume 0 != #t~nondet1; {6942#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-08 16:25:33,945 INFO L280 TraceCheckUtils]: 15: Hoare triple {6942#(= 1 (select |#valid| main_~list~0.base))} havoc #t~nondet1; {6942#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-08 16:25:33,945 INFO L280 TraceCheckUtils]: 16: Hoare triple {6942#(= 1 (select |#valid| main_~list~0.base))} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-7 {6942#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-08 16:25:33,946 INFO L280 TraceCheckUtils]: 17: Hoare triple {6942#(= 1 (select |#valid| main_~list~0.base))} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-34 {6942#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-08 16:25:33,947 INFO L280 TraceCheckUtils]: 18: Hoare triple {6942#(= 1 (select |#valid| main_~list~0.base))} #t~short7 := #t~mem5.base != 0 || #t~mem5.offset != 0; {6942#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-08 16:25:33,948 INFO L280 TraceCheckUtils]: 19: Hoare triple {6942#(= 1 (select |#valid| main_~list~0.base))} assume !#t~short7; {6942#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-08 16:25:33,948 INFO L280 TraceCheckUtils]: 20: Hoare triple {6942#(= 1 (select |#valid| main_~list~0.base))} SUMMARY for call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-22 {6942#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-08 16:25:33,949 INFO L280 TraceCheckUtils]: 21: Hoare triple {6942#(= 1 (select |#valid| main_~list~0.base))} #t~short7 := #t~mem6.base == 0 && #t~mem6.offset == 0; {6942#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-08 16:25:33,950 INFO L280 TraceCheckUtils]: 22: Hoare triple {6942#(= 1 (select |#valid| main_~list~0.base))} assume !!#t~short7; {6942#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-08 16:25:33,957 INFO L280 TraceCheckUtils]: 23: Hoare triple {6942#(= 1 (select |#valid| main_~list~0.base))} havoc #t~mem6.base, #t~mem6.offset; {6942#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-08 16:25:33,958 INFO L280 TraceCheckUtils]: 24: Hoare triple {6942#(= 1 (select |#valid| main_~list~0.base))} havoc #t~mem5.base, #t~mem5.offset; {6942#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-08 16:25:33,960 INFO L280 TraceCheckUtils]: 25: Hoare triple {6942#(= 1 (select |#valid| main_~list~0.base))} havoc #t~short7; {6942#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-08 16:25:33,960 INFO L280 TraceCheckUtils]: 26: Hoare triple {6942#(= 1 (select |#valid| main_~list~0.base))} goto; {6942#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-08 16:25:33,961 INFO L280 TraceCheckUtils]: 27: Hoare triple {6942#(= 1 (select |#valid| main_~list~0.base))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {6943#(= 1 (select |#valid| main_~end~0.base))} is VALID [2020-07-08 16:25:33,962 INFO L280 TraceCheckUtils]: 28: Hoare triple {6943#(= 1 (select |#valid| main_~end~0.base))} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {6943#(= 1 (select |#valid| main_~end~0.base))} is VALID [2020-07-08 16:25:33,966 INFO L280 TraceCheckUtils]: 29: Hoare triple {6943#(= 1 (select |#valid| main_~end~0.base))} assume !!(0 != #t~nondet8); {6943#(= 1 (select |#valid| main_~end~0.base))} is VALID [2020-07-08 16:25:33,967 INFO L280 TraceCheckUtils]: 30: Hoare triple {6943#(= 1 (select |#valid| main_~end~0.base))} havoc #t~nondet8; {6943#(= 1 (select |#valid| main_~end~0.base))} is VALID [2020-07-08 16:25:33,968 INFO L280 TraceCheckUtils]: 31: Hoare triple {6943#(= 1 (select |#valid| main_~end~0.base))} SUMMARY for call #t~malloc9.base, #t~malloc9.offset := #Ultimate.allocOnHeap(12); srcloc: L1003 {6944#(and (not (= 0 |main_#t~malloc9.base|)) (not (= |main_#t~malloc9.base| main_~end~0.base)))} is VALID [2020-07-08 16:25:33,969 INFO L280 TraceCheckUtils]: 32: Hoare triple {6944#(and (not (= 0 |main_#t~malloc9.base|)) (not (= |main_#t~malloc9.base| main_~end~0.base)))} SUMMARY for call write~$Pointer$(#t~malloc9.base, #t~malloc9.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1003-1 {6945#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)))} is VALID [2020-07-08 16:25:33,970 INFO L280 TraceCheckUtils]: 33: Hoare triple {6945#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)))} SUMMARY for call #t~mem10.base, #t~mem10.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1003-2 {6946#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))) (not (= |main_#t~mem10.base| main_~end~0.base)))} is VALID [2020-07-08 16:25:33,971 INFO L280 TraceCheckUtils]: 34: Hoare triple {6946#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))) (not (= |main_#t~mem10.base| main_~end~0.base)))} SUMMARY for call write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem10.base, 4 + #t~mem10.offset, 4); srcloc: L1004 {6947#(not (= 0 (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)))} is VALID [2020-07-08 16:25:33,972 INFO L280 TraceCheckUtils]: 35: Hoare triple {6947#(not (= 0 (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)))} havoc #t~mem10.base, #t~mem10.offset; {6947#(not (= 0 (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)))} is VALID [2020-07-08 16:25:33,973 INFO L280 TraceCheckUtils]: 36: Hoare triple {6947#(not (= 0 (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)))} SUMMARY for call #t~mem11.base, #t~mem11.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1005 {6948#(not (= 0 |main_#t~mem11.base|))} is VALID [2020-07-08 16:25:33,973 INFO L280 TraceCheckUtils]: 37: Hoare triple {6948#(not (= 0 |main_#t~mem11.base|))} ~end~0.base, ~end~0.offset := #t~mem11.base, #t~mem11.offset; {6949#(not (= 0 main_~end~0.base))} is VALID [2020-07-08 16:25:33,974 INFO L280 TraceCheckUtils]: 38: Hoare triple {6949#(not (= 0 main_~end~0.base))} havoc #t~mem11.base, #t~mem11.offset; {6949#(not (= 0 main_~end~0.base))} is VALID [2020-07-08 16:25:33,975 INFO L280 TraceCheckUtils]: 39: Hoare triple {6949#(not (= 0 main_~end~0.base))} SUMMARY for call write~$Pointer$(0, 0, ~end~0.base, ~end~0.offset, 4); srcloc: L1006 {6949#(not (= 0 main_~end~0.base))} is VALID [2020-07-08 16:25:33,981 INFO L280 TraceCheckUtils]: 40: Hoare triple {6949#(not (= 0 main_~end~0.base))} assume !(0 != ~end~0.base || 0 != ~end~0.offset); {6935#false} is VALID [2020-07-08 16:25:33,982 INFO L280 TraceCheckUtils]: 41: Hoare triple {6935#false} assume !false; {6935#false} is VALID [2020-07-08 16:25:33,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:25:33,986 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:33,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1078170811] [2020-07-08 16:25:33,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:25:33,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-08 16:25:33,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981454010] [2020-07-08 16:25:33,989 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 42 [2020-07-08 16:25:33,990 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:25:33,991 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states. [2020-07-08 16:25:34,032 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:34,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-08 16:25:34,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:25:34,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-08 16:25:34,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-07-08 16:25:34,033 INFO L87 Difference]: Start difference. First operand 161 states and 170 transitions. Second operand 12 states. [2020-07-08 16:25:37,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:37,523 INFO L93 Difference]: Finished difference Result 286 states and 302 transitions. [2020-07-08 16:25:37,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-08 16:25:37,523 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 42 [2020-07-08 16:25:37,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:25:37,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-08 16:25:37,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 299 transitions. [2020-07-08 16:25:37,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-08 16:25:37,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 299 transitions. [2020-07-08 16:25:37,530 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 299 transitions. [2020-07-08 16:25:37,881 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 299 edges. 299 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:37,888 INFO L225 Difference]: With dead ends: 286 [2020-07-08 16:25:37,888 INFO L226 Difference]: Without dead ends: 282 [2020-07-08 16:25:37,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2020-07-08 16:25:37,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-07-08 16:25:38,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 176. [2020-07-08 16:25:38,457 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:25:38,457 INFO L82 GeneralOperation]: Start isEquivalent. First operand 282 states. Second operand 176 states. [2020-07-08 16:25:38,457 INFO L74 IsIncluded]: Start isIncluded. First operand 282 states. Second operand 176 states. [2020-07-08 16:25:38,457 INFO L87 Difference]: Start difference. First operand 282 states. Second operand 176 states. [2020-07-08 16:25:38,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:38,465 INFO L93 Difference]: Finished difference Result 282 states and 298 transitions. [2020-07-08 16:25:38,465 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 298 transitions. [2020-07-08 16:25:38,466 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:38,466 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:38,467 INFO L74 IsIncluded]: Start isIncluded. First operand 176 states. Second operand 282 states. [2020-07-08 16:25:38,467 INFO L87 Difference]: Start difference. First operand 176 states. Second operand 282 states. [2020-07-08 16:25:38,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:38,475 INFO L93 Difference]: Finished difference Result 282 states and 298 transitions. [2020-07-08 16:25:38,475 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 298 transitions. [2020-07-08 16:25:38,476 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:38,476 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:38,476 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:25:38,476 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:25:38,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-07-08 16:25:38,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 186 transitions. [2020-07-08 16:25:38,496 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 186 transitions. Word has length 42 [2020-07-08 16:25:38,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:25:38,497 INFO L479 AbstractCegarLoop]: Abstraction has 176 states and 186 transitions. [2020-07-08 16:25:38,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-08 16:25:38,497 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 176 states and 186 transitions. [2020-07-08 16:25:38,837 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 186 edges. 186 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:38,837 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 186 transitions. [2020-07-08 16:25:38,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-07-08 16:25:38,838 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:38,839 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:25:38,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-08 16:25:38,839 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:25:38,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:38,839 INFO L82 PathProgramCache]: Analyzing trace with hash 654436304, now seen corresponding path program 1 times [2020-07-08 16:25:38,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:38,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [591837272] [2020-07-08 16:25:38,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:38,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:38,917 INFO L280 TraceCheckUtils]: 0: Hoare triple {8465#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {8457#true} is VALID [2020-07-08 16:25:38,917 INFO L280 TraceCheckUtils]: 1: Hoare triple {8457#true} #valid := #valid[0 := 0]; {8457#true} is VALID [2020-07-08 16:25:38,918 INFO L280 TraceCheckUtils]: 2: Hoare triple {8457#true} assume 0 < #StackHeapBarrier; {8457#true} is VALID [2020-07-08 16:25:38,918 INFO L280 TraceCheckUtils]: 3: Hoare triple {8457#true} assume true; {8457#true} is VALID [2020-07-08 16:25:38,918 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {8457#true} {8457#true} #414#return; {8457#true} is VALID [2020-07-08 16:25:38,919 INFO L263 TraceCheckUtils]: 0: Hoare triple {8457#true} call ULTIMATE.init(); {8465#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 16:25:38,919 INFO L280 TraceCheckUtils]: 1: Hoare triple {8465#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {8457#true} is VALID [2020-07-08 16:25:38,920 INFO L280 TraceCheckUtils]: 2: Hoare triple {8457#true} #valid := #valid[0 := 0]; {8457#true} is VALID [2020-07-08 16:25:38,920 INFO L280 TraceCheckUtils]: 3: Hoare triple {8457#true} assume 0 < #StackHeapBarrier; {8457#true} is VALID [2020-07-08 16:25:38,920 INFO L280 TraceCheckUtils]: 4: Hoare triple {8457#true} assume true; {8457#true} is VALID [2020-07-08 16:25:38,920 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {8457#true} {8457#true} #414#return; {8457#true} is VALID [2020-07-08 16:25:38,920 INFO L263 TraceCheckUtils]: 6: Hoare triple {8457#true} call #t~ret28 := main(); {8457#true} is VALID [2020-07-08 16:25:38,921 INFO L280 TraceCheckUtils]: 7: Hoare triple {8457#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {8457#true} is VALID [2020-07-08 16:25:38,921 INFO L280 TraceCheckUtils]: 8: Hoare triple {8457#true} ~list~0.base, ~list~0.offset := #t~malloc0.base, #t~malloc0.offset; {8457#true} is VALID [2020-07-08 16:25:38,921 INFO L280 TraceCheckUtils]: 9: Hoare triple {8457#true} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {8457#true} is VALID [2020-07-08 16:25:38,921 INFO L280 TraceCheckUtils]: 10: Hoare triple {8457#true} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {8457#true} is VALID [2020-07-08 16:25:38,922 INFO L280 TraceCheckUtils]: 11: Hoare triple {8457#true} assume !!(~list~0.base != 0 || ~list~0.offset != 0); {8457#true} is VALID [2020-07-08 16:25:38,922 INFO L280 TraceCheckUtils]: 12: Hoare triple {8457#true} goto; {8457#true} is VALID [2020-07-08 16:25:38,922 INFO L280 TraceCheckUtils]: 13: Hoare triple {8457#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {8457#true} is VALID [2020-07-08 16:25:38,922 INFO L280 TraceCheckUtils]: 14: Hoare triple {8457#true} assume 0 != #t~nondet1; {8457#true} is VALID [2020-07-08 16:25:38,922 INFO L280 TraceCheckUtils]: 15: Hoare triple {8457#true} havoc #t~nondet1; {8457#true} is VALID [2020-07-08 16:25:38,923 INFO L280 TraceCheckUtils]: 16: Hoare triple {8457#true} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-7 {8457#true} is VALID [2020-07-08 16:25:38,923 INFO L280 TraceCheckUtils]: 17: Hoare triple {8457#true} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-34 {8457#true} is VALID [2020-07-08 16:25:38,923 INFO L280 TraceCheckUtils]: 18: Hoare triple {8457#true} #t~short7 := #t~mem5.base != 0 || #t~mem5.offset != 0; {8457#true} is VALID [2020-07-08 16:25:38,923 INFO L280 TraceCheckUtils]: 19: Hoare triple {8457#true} assume !#t~short7; {8457#true} is VALID [2020-07-08 16:25:38,924 INFO L280 TraceCheckUtils]: 20: Hoare triple {8457#true} SUMMARY for call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-22 {8457#true} is VALID [2020-07-08 16:25:38,924 INFO L280 TraceCheckUtils]: 21: Hoare triple {8457#true} #t~short7 := #t~mem6.base == 0 && #t~mem6.offset == 0; {8457#true} is VALID [2020-07-08 16:25:38,924 INFO L280 TraceCheckUtils]: 22: Hoare triple {8457#true} assume !!#t~short7; {8457#true} is VALID [2020-07-08 16:25:38,924 INFO L280 TraceCheckUtils]: 23: Hoare triple {8457#true} havoc #t~mem6.base, #t~mem6.offset; {8457#true} is VALID [2020-07-08 16:25:38,925 INFO L280 TraceCheckUtils]: 24: Hoare triple {8457#true} havoc #t~mem5.base, #t~mem5.offset; {8457#true} is VALID [2020-07-08 16:25:38,925 INFO L280 TraceCheckUtils]: 25: Hoare triple {8457#true} havoc #t~short7; {8457#true} is VALID [2020-07-08 16:25:38,925 INFO L280 TraceCheckUtils]: 26: Hoare triple {8457#true} goto; {8457#true} is VALID [2020-07-08 16:25:38,925 INFO L280 TraceCheckUtils]: 27: Hoare triple {8457#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {8457#true} is VALID [2020-07-08 16:25:38,925 INFO L280 TraceCheckUtils]: 28: Hoare triple {8457#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {8457#true} is VALID [2020-07-08 16:25:38,926 INFO L280 TraceCheckUtils]: 29: Hoare triple {8457#true} assume !(0 != #t~nondet8); {8457#true} is VALID [2020-07-08 16:25:38,926 INFO L280 TraceCheckUtils]: 30: Hoare triple {8457#true} havoc #t~nondet8; {8457#true} is VALID [2020-07-08 16:25:38,926 INFO L280 TraceCheckUtils]: 31: Hoare triple {8457#true} ~end~0.base, ~end~0.offset := 0, 0; {8457#true} is VALID [2020-07-08 16:25:38,926 INFO L280 TraceCheckUtils]: 32: Hoare triple {8457#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {8457#true} is VALID [2020-07-08 16:25:38,926 INFO L280 TraceCheckUtils]: 33: Hoare triple {8457#true} assume !!(0 != ~end~0.base || 0 != ~end~0.offset); {8457#true} is VALID [2020-07-08 16:25:38,927 INFO L280 TraceCheckUtils]: 34: Hoare triple {8457#true} goto; {8457#true} is VALID [2020-07-08 16:25:38,927 INFO L280 TraceCheckUtils]: 35: Hoare triple {8457#true} assume !!(0 != ~end~0.base || 0 != ~end~0.offset); {8457#true} is VALID [2020-07-08 16:25:38,928 INFO L280 TraceCheckUtils]: 36: Hoare triple {8457#true} ~len~0 := 0; {8464#(= 0 main_~len~0)} is VALID [2020-07-08 16:25:38,928 INFO L280 TraceCheckUtils]: 37: Hoare triple {8464#(= 0 main_~len~0)} SUMMARY for call #t~mem19.base, #t~mem19.offset := read~$Pointer$(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1020 {8464#(= 0 main_~len~0)} is VALID [2020-07-08 16:25:38,929 INFO L280 TraceCheckUtils]: 38: Hoare triple {8464#(= 0 main_~len~0)} ~inner~0.base, ~inner~0.offset := #t~mem19.base, #t~mem19.offset; {8464#(= 0 main_~len~0)} is VALID [2020-07-08 16:25:38,929 INFO L280 TraceCheckUtils]: 39: Hoare triple {8464#(= 0 main_~len~0)} havoc #t~mem19.base, #t~mem19.offset; {8464#(= 0 main_~len~0)} is VALID [2020-07-08 16:25:38,930 INFO L280 TraceCheckUtils]: 40: Hoare triple {8464#(= 0 main_~len~0)} assume !(0 != ~inner~0.base || 0 != ~inner~0.offset); {8464#(= 0 main_~len~0)} is VALID [2020-07-08 16:25:38,931 INFO L280 TraceCheckUtils]: 41: Hoare triple {8464#(= 0 main_~len~0)} assume !(~len~0 <= 1); {8458#false} is VALID [2020-07-08 16:25:38,931 INFO L280 TraceCheckUtils]: 42: Hoare triple {8458#false} assume !false; {8458#false} is VALID [2020-07-08 16:25:38,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:25:38,932 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:38,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [591837272] [2020-07-08 16:25:38,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:25:38,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-08 16:25:38,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218569996] [2020-07-08 16:25:38,934 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-07-08 16:25:38,934 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:25:38,934 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-08 16:25:38,975 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:38,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-08 16:25:38,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:25:38,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-08 16:25:38,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-08 16:25:38,976 INFO L87 Difference]: Start difference. First operand 176 states and 186 transitions. Second operand 4 states. [2020-07-08 16:25:40,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:40,178 INFO L93 Difference]: Finished difference Result 282 states and 301 transitions. [2020-07-08 16:25:40,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-08 16:25:40,179 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-07-08 16:25:40,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:25:40,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 16:25:40,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 281 transitions. [2020-07-08 16:25:40,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 16:25:40,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 281 transitions. [2020-07-08 16:25:40,185 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 281 transitions. [2020-07-08 16:25:40,454 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 281 edges. 281 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:40,460 INFO L225 Difference]: With dead ends: 282 [2020-07-08 16:25:40,460 INFO L226 Difference]: Without dead ends: 215 [2020-07-08 16:25:40,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-08 16:25:40,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2020-07-08 16:25:41,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 179. [2020-07-08 16:25:41,024 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:25:41,024 INFO L82 GeneralOperation]: Start isEquivalent. First operand 215 states. Second operand 179 states. [2020-07-08 16:25:41,024 INFO L74 IsIncluded]: Start isIncluded. First operand 215 states. Second operand 179 states. [2020-07-08 16:25:41,025 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 179 states. [2020-07-08 16:25:41,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:41,029 INFO L93 Difference]: Finished difference Result 215 states and 228 transitions. [2020-07-08 16:25:41,030 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 228 transitions. [2020-07-08 16:25:41,030 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:41,031 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:41,031 INFO L74 IsIncluded]: Start isIncluded. First operand 179 states. Second operand 215 states. [2020-07-08 16:25:41,031 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 215 states. [2020-07-08 16:25:41,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:41,036 INFO L93 Difference]: Finished difference Result 215 states and 228 transitions. [2020-07-08 16:25:41,036 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 228 transitions. [2020-07-08 16:25:41,037 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:41,037 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:41,037 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:25:41,037 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:25:41,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-07-08 16:25:41,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 190 transitions. [2020-07-08 16:25:41,041 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 190 transitions. Word has length 43 [2020-07-08 16:25:41,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:25:41,042 INFO L479 AbstractCegarLoop]: Abstraction has 179 states and 190 transitions. [2020-07-08 16:25:41,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-08 16:25:41,042 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 179 states and 190 transitions. [2020-07-08 16:25:41,383 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 190 edges. 190 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:41,384 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 190 transitions. [2020-07-08 16:25:41,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-08 16:25:41,385 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:41,385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:25:41,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-08 16:25:41,386 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:25:41,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:41,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1847672787, now seen corresponding path program 1 times [2020-07-08 16:25:41,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:41,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1818654487] [2020-07-08 16:25:41,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:41,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:41,494 INFO L280 TraceCheckUtils]: 0: Hoare triple {9828#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {9820#true} is VALID [2020-07-08 16:25:41,494 INFO L280 TraceCheckUtils]: 1: Hoare triple {9820#true} #valid := #valid[0 := 0]; {9820#true} is VALID [2020-07-08 16:25:41,495 INFO L280 TraceCheckUtils]: 2: Hoare triple {9820#true} assume 0 < #StackHeapBarrier; {9820#true} is VALID [2020-07-08 16:25:41,495 INFO L280 TraceCheckUtils]: 3: Hoare triple {9820#true} assume true; {9820#true} is VALID [2020-07-08 16:25:41,495 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {9820#true} {9820#true} #414#return; {9820#true} is VALID [2020-07-08 16:25:41,496 INFO L263 TraceCheckUtils]: 0: Hoare triple {9820#true} call ULTIMATE.init(); {9828#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 16:25:41,496 INFO L280 TraceCheckUtils]: 1: Hoare triple {9828#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {9820#true} is VALID [2020-07-08 16:25:41,497 INFO L280 TraceCheckUtils]: 2: Hoare triple {9820#true} #valid := #valid[0 := 0]; {9820#true} is VALID [2020-07-08 16:25:41,497 INFO L280 TraceCheckUtils]: 3: Hoare triple {9820#true} assume 0 < #StackHeapBarrier; {9820#true} is VALID [2020-07-08 16:25:41,497 INFO L280 TraceCheckUtils]: 4: Hoare triple {9820#true} assume true; {9820#true} is VALID [2020-07-08 16:25:41,497 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {9820#true} {9820#true} #414#return; {9820#true} is VALID [2020-07-08 16:25:41,497 INFO L263 TraceCheckUtils]: 6: Hoare triple {9820#true} call #t~ret28 := main(); {9820#true} is VALID [2020-07-08 16:25:41,497 INFO L280 TraceCheckUtils]: 7: Hoare triple {9820#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {9820#true} is VALID [2020-07-08 16:25:41,498 INFO L280 TraceCheckUtils]: 8: Hoare triple {9820#true} ~list~0.base, ~list~0.offset := #t~malloc0.base, #t~malloc0.offset; {9820#true} is VALID [2020-07-08 16:25:41,498 INFO L280 TraceCheckUtils]: 9: Hoare triple {9820#true} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {9820#true} is VALID [2020-07-08 16:25:41,498 INFO L280 TraceCheckUtils]: 10: Hoare triple {9820#true} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {9820#true} is VALID [2020-07-08 16:25:41,498 INFO L280 TraceCheckUtils]: 11: Hoare triple {9820#true} assume !!(~list~0.base != 0 || ~list~0.offset != 0); {9820#true} is VALID [2020-07-08 16:25:41,498 INFO L280 TraceCheckUtils]: 12: Hoare triple {9820#true} goto; {9820#true} is VALID [2020-07-08 16:25:41,498 INFO L280 TraceCheckUtils]: 13: Hoare triple {9820#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {9820#true} is VALID [2020-07-08 16:25:41,499 INFO L280 TraceCheckUtils]: 14: Hoare triple {9820#true} assume 0 != #t~nondet1; {9820#true} is VALID [2020-07-08 16:25:41,499 INFO L280 TraceCheckUtils]: 15: Hoare triple {9820#true} havoc #t~nondet1; {9820#true} is VALID [2020-07-08 16:25:41,499 INFO L280 TraceCheckUtils]: 16: Hoare triple {9820#true} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-7 {9820#true} is VALID [2020-07-08 16:25:41,499 INFO L280 TraceCheckUtils]: 17: Hoare triple {9820#true} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-34 {9820#true} is VALID [2020-07-08 16:25:41,499 INFO L280 TraceCheckUtils]: 18: Hoare triple {9820#true} #t~short7 := #t~mem5.base != 0 || #t~mem5.offset != 0; {9820#true} is VALID [2020-07-08 16:25:41,500 INFO L280 TraceCheckUtils]: 19: Hoare triple {9820#true} assume !#t~short7; {9820#true} is VALID [2020-07-08 16:25:41,500 INFO L280 TraceCheckUtils]: 20: Hoare triple {9820#true} SUMMARY for call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-22 {9820#true} is VALID [2020-07-08 16:25:41,500 INFO L280 TraceCheckUtils]: 21: Hoare triple {9820#true} #t~short7 := #t~mem6.base == 0 && #t~mem6.offset == 0; {9820#true} is VALID [2020-07-08 16:25:41,500 INFO L280 TraceCheckUtils]: 22: Hoare triple {9820#true} assume !!#t~short7; {9820#true} is VALID [2020-07-08 16:25:41,500 INFO L280 TraceCheckUtils]: 23: Hoare triple {9820#true} havoc #t~mem6.base, #t~mem6.offset; {9820#true} is VALID [2020-07-08 16:25:41,501 INFO L280 TraceCheckUtils]: 24: Hoare triple {9820#true} havoc #t~mem5.base, #t~mem5.offset; {9820#true} is VALID [2020-07-08 16:25:41,501 INFO L280 TraceCheckUtils]: 25: Hoare triple {9820#true} havoc #t~short7; {9820#true} is VALID [2020-07-08 16:25:41,501 INFO L280 TraceCheckUtils]: 26: Hoare triple {9820#true} goto; {9820#true} is VALID [2020-07-08 16:25:41,501 INFO L280 TraceCheckUtils]: 27: Hoare triple {9820#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {9820#true} is VALID [2020-07-08 16:25:41,502 INFO L280 TraceCheckUtils]: 28: Hoare triple {9820#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {9820#true} is VALID [2020-07-08 16:25:41,502 INFO L280 TraceCheckUtils]: 29: Hoare triple {9820#true} assume !(0 != #t~nondet8); {9820#true} is VALID [2020-07-08 16:25:41,502 INFO L280 TraceCheckUtils]: 30: Hoare triple {9820#true} havoc #t~nondet8; {9820#true} is VALID [2020-07-08 16:25:41,502 INFO L280 TraceCheckUtils]: 31: Hoare triple {9820#true} ~end~0.base, ~end~0.offset := 0, 0; {9820#true} is VALID [2020-07-08 16:25:41,503 INFO L280 TraceCheckUtils]: 32: Hoare triple {9820#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {9820#true} is VALID [2020-07-08 16:25:41,503 INFO L280 TraceCheckUtils]: 33: Hoare triple {9820#true} assume !!(0 != ~end~0.base || 0 != ~end~0.offset); {9820#true} is VALID [2020-07-08 16:25:41,503 INFO L280 TraceCheckUtils]: 34: Hoare triple {9820#true} goto; {9820#true} is VALID [2020-07-08 16:25:41,503 INFO L280 TraceCheckUtils]: 35: Hoare triple {9820#true} assume !!(0 != ~end~0.base || 0 != ~end~0.offset); {9820#true} is VALID [2020-07-08 16:25:41,503 INFO L280 TraceCheckUtils]: 36: Hoare triple {9820#true} ~len~0 := 0; {9820#true} is VALID [2020-07-08 16:25:41,504 INFO L280 TraceCheckUtils]: 37: Hoare triple {9820#true} SUMMARY for call #t~mem19.base, #t~mem19.offset := read~$Pointer$(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1020 {9820#true} is VALID [2020-07-08 16:25:41,504 INFO L280 TraceCheckUtils]: 38: Hoare triple {9820#true} ~inner~0.base, ~inner~0.offset := #t~mem19.base, #t~mem19.offset; {9820#true} is VALID [2020-07-08 16:25:41,504 INFO L280 TraceCheckUtils]: 39: Hoare triple {9820#true} havoc #t~mem19.base, #t~mem19.offset; {9820#true} is VALID [2020-07-08 16:25:41,505 INFO L280 TraceCheckUtils]: 40: Hoare triple {9820#true} assume !!(0 != ~inner~0.base || 0 != ~inner~0.offset); {9827#(or (not (= 0 main_~inner~0.base)) (not (= 0 main_~inner~0.offset)))} is VALID [2020-07-08 16:25:41,506 INFO L280 TraceCheckUtils]: 41: Hoare triple {9827#(or (not (= 0 main_~inner~0.base)) (not (= 0 main_~inner~0.offset)))} assume 0 == ~len~0; {9827#(or (not (= 0 main_~inner~0.base)) (not (= 0 main_~inner~0.offset)))} is VALID [2020-07-08 16:25:41,508 INFO L280 TraceCheckUtils]: 42: Hoare triple {9827#(or (not (= 0 main_~inner~0.base)) (not (= 0 main_~inner~0.offset)))} ~len~0 := 1; {9827#(or (not (= 0 main_~inner~0.base)) (not (= 0 main_~inner~0.offset)))} is VALID [2020-07-08 16:25:41,509 INFO L280 TraceCheckUtils]: 43: Hoare triple {9827#(or (not (= 0 main_~inner~0.base)) (not (= 0 main_~inner~0.offset)))} assume !(0 != ~inner~0.base || 0 != ~inner~0.offset); {9821#false} is VALID [2020-07-08 16:25:41,510 INFO L280 TraceCheckUtils]: 44: Hoare triple {9821#false} assume !false; {9821#false} is VALID [2020-07-08 16:25:41,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:25:41,512 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:41,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1818654487] [2020-07-08 16:25:41,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:25:41,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-08 16:25:41,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449331755] [2020-07-08 16:25:41,513 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2020-07-08 16:25:41,513 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:25:41,513 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-08 16:25:41,558 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:41,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-08 16:25:41,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:25:41,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-08 16:25:41,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-08 16:25:41,559 INFO L87 Difference]: Start difference. First operand 179 states and 190 transitions. Second operand 4 states. [2020-07-08 16:25:42,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:42,608 INFO L93 Difference]: Finished difference Result 179 states and 190 transitions. [2020-07-08 16:25:42,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-08 16:25:42,608 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2020-07-08 16:25:42,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:25:42,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 16:25:42,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 166 transitions. [2020-07-08 16:25:42,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 16:25:42,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 166 transitions. [2020-07-08 16:25:42,612 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 166 transitions. [2020-07-08 16:25:42,766 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 166 edges. 166 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:42,770 INFO L225 Difference]: With dead ends: 179 [2020-07-08 16:25:42,771 INFO L226 Difference]: Without dead ends: 177 [2020-07-08 16:25:42,771 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-08 16:25:42,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-07-08 16:25:43,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2020-07-08 16:25:43,356 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:25:43,356 INFO L82 GeneralOperation]: Start isEquivalent. First operand 177 states. Second operand 177 states. [2020-07-08 16:25:43,356 INFO L74 IsIncluded]: Start isIncluded. First operand 177 states. Second operand 177 states. [2020-07-08 16:25:43,357 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 177 states. [2020-07-08 16:25:43,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:43,363 INFO L93 Difference]: Finished difference Result 177 states and 188 transitions. [2020-07-08 16:25:43,363 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 188 transitions. [2020-07-08 16:25:43,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:43,364 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:43,364 INFO L74 IsIncluded]: Start isIncluded. First operand 177 states. Second operand 177 states. [2020-07-08 16:25:43,364 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 177 states. [2020-07-08 16:25:43,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:43,367 INFO L93 Difference]: Finished difference Result 177 states and 188 transitions. [2020-07-08 16:25:43,368 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 188 transitions. [2020-07-08 16:25:43,368 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:43,368 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:43,368 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:25:43,369 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:25:43,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-07-08 16:25:43,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 188 transitions. [2020-07-08 16:25:43,372 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 188 transitions. Word has length 45 [2020-07-08 16:25:43,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:25:43,373 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 188 transitions. [2020-07-08 16:25:43,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-08 16:25:43,373 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 177 states and 188 transitions. [2020-07-08 16:25:43,710 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 188 edges. 188 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:43,711 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 188 transitions. [2020-07-08 16:25:43,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-07-08 16:25:43,712 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:43,712 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:25:43,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-08 16:25:43,712 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:25:43,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:43,713 INFO L82 PathProgramCache]: Analyzing trace with hash 11890970, now seen corresponding path program 1 times [2020-07-08 16:25:43,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:43,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [909030389] [2020-07-08 16:25:43,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:43,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:44,060 INFO L280 TraceCheckUtils]: 0: Hoare triple {10912#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {10897#true} is VALID [2020-07-08 16:25:44,061 INFO L280 TraceCheckUtils]: 1: Hoare triple {10897#true} #valid := #valid[0 := 0]; {10897#true} is VALID [2020-07-08 16:25:44,061 INFO L280 TraceCheckUtils]: 2: Hoare triple {10897#true} assume 0 < #StackHeapBarrier; {10897#true} is VALID [2020-07-08 16:25:44,061 INFO L280 TraceCheckUtils]: 3: Hoare triple {10897#true} assume true; {10897#true} is VALID [2020-07-08 16:25:44,061 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {10897#true} {10897#true} #414#return; {10897#true} is VALID [2020-07-08 16:25:44,062 INFO L263 TraceCheckUtils]: 0: Hoare triple {10897#true} call ULTIMATE.init(); {10912#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 16:25:44,063 INFO L280 TraceCheckUtils]: 1: Hoare triple {10912#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {10897#true} is VALID [2020-07-08 16:25:44,063 INFO L280 TraceCheckUtils]: 2: Hoare triple {10897#true} #valid := #valid[0 := 0]; {10897#true} is VALID [2020-07-08 16:25:44,063 INFO L280 TraceCheckUtils]: 3: Hoare triple {10897#true} assume 0 < #StackHeapBarrier; {10897#true} is VALID [2020-07-08 16:25:44,063 INFO L280 TraceCheckUtils]: 4: Hoare triple {10897#true} assume true; {10897#true} is VALID [2020-07-08 16:25:44,063 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {10897#true} {10897#true} #414#return; {10897#true} is VALID [2020-07-08 16:25:44,064 INFO L263 TraceCheckUtils]: 6: Hoare triple {10897#true} call #t~ret28 := main(); {10897#true} is VALID [2020-07-08 16:25:44,064 INFO L280 TraceCheckUtils]: 7: Hoare triple {10897#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {10904#(= 0 |main_#t~malloc0.offset|)} is VALID [2020-07-08 16:25:44,065 INFO L280 TraceCheckUtils]: 8: Hoare triple {10904#(= 0 |main_#t~malloc0.offset|)} ~list~0.base, ~list~0.offset := #t~malloc0.base, #t~malloc0.offset; {10905#(= 0 main_~list~0.offset)} is VALID [2020-07-08 16:25:44,066 INFO L280 TraceCheckUtils]: 9: Hoare triple {10905#(= 0 main_~list~0.offset)} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {10905#(= 0 main_~list~0.offset)} is VALID [2020-07-08 16:25:44,066 INFO L280 TraceCheckUtils]: 10: Hoare triple {10905#(= 0 main_~list~0.offset)} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {10905#(= 0 main_~list~0.offset)} is VALID [2020-07-08 16:25:44,067 INFO L280 TraceCheckUtils]: 11: Hoare triple {10905#(= 0 main_~list~0.offset)} assume !!(~list~0.base != 0 || ~list~0.offset != 0); {10905#(= 0 main_~list~0.offset)} is VALID [2020-07-08 16:25:44,067 INFO L280 TraceCheckUtils]: 12: Hoare triple {10905#(= 0 main_~list~0.offset)} goto; {10905#(= 0 main_~list~0.offset)} is VALID [2020-07-08 16:25:44,068 INFO L280 TraceCheckUtils]: 13: Hoare triple {10905#(= 0 main_~list~0.offset)} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {10905#(= 0 main_~list~0.offset)} is VALID [2020-07-08 16:25:44,068 INFO L280 TraceCheckUtils]: 14: Hoare triple {10905#(= 0 main_~list~0.offset)} assume 0 != #t~nondet1; {10905#(= 0 main_~list~0.offset)} is VALID [2020-07-08 16:25:44,069 INFO L280 TraceCheckUtils]: 15: Hoare triple {10905#(= 0 main_~list~0.offset)} havoc #t~nondet1; {10905#(= 0 main_~list~0.offset)} is VALID [2020-07-08 16:25:44,069 INFO L280 TraceCheckUtils]: 16: Hoare triple {10905#(= 0 main_~list~0.offset)} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-7 {10905#(= 0 main_~list~0.offset)} is VALID [2020-07-08 16:25:44,070 INFO L280 TraceCheckUtils]: 17: Hoare triple {10905#(= 0 main_~list~0.offset)} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-34 {10906#(and (= |main_#t~mem5.offset| (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= 0 main_~list~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8)) |main_#t~mem5.base|) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:44,071 INFO L280 TraceCheckUtils]: 18: Hoare triple {10906#(and (= |main_#t~mem5.offset| (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= 0 main_~list~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8)) |main_#t~mem5.base|) (<= main_~list~0.offset 0))} #t~short7 := #t~mem5.base != 0 || #t~mem5.offset != 0; {10907#(or |main_#t~short7| (and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0)))} is VALID [2020-07-08 16:25:44,072 INFO L280 TraceCheckUtils]: 19: Hoare triple {10907#(or |main_#t~short7| (and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0)))} assume !#t~short7; {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:44,073 INFO L280 TraceCheckUtils]: 20: Hoare triple {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} SUMMARY for call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-22 {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:44,074 INFO L280 TraceCheckUtils]: 21: Hoare triple {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} #t~short7 := #t~mem6.base == 0 && #t~mem6.offset == 0; {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:44,075 INFO L280 TraceCheckUtils]: 22: Hoare triple {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} assume !!#t~short7; {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:44,075 INFO L280 TraceCheckUtils]: 23: Hoare triple {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} havoc #t~mem6.base, #t~mem6.offset; {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:44,076 INFO L280 TraceCheckUtils]: 24: Hoare triple {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} havoc #t~mem5.base, #t~mem5.offset; {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:44,077 INFO L280 TraceCheckUtils]: 25: Hoare triple {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} havoc #t~short7; {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:44,078 INFO L280 TraceCheckUtils]: 26: Hoare triple {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} goto; {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:44,079 INFO L280 TraceCheckUtils]: 27: Hoare triple {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:44,079 INFO L280 TraceCheckUtils]: 28: Hoare triple {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:44,080 INFO L280 TraceCheckUtils]: 29: Hoare triple {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} assume !(0 != #t~nondet8); {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:44,081 INFO L280 TraceCheckUtils]: 30: Hoare triple {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} havoc #t~nondet8; {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:44,082 INFO L280 TraceCheckUtils]: 31: Hoare triple {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} ~end~0.base, ~end~0.offset := 0, 0; {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:44,083 INFO L280 TraceCheckUtils]: 32: Hoare triple {10908#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {10909#(and (= 0 (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) (+ main_~end~0.offset 8))) (= 0 main_~end~0.offset))} is VALID [2020-07-08 16:25:44,084 INFO L280 TraceCheckUtils]: 33: Hoare triple {10909#(and (= 0 (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) (+ main_~end~0.offset 8))) (= 0 main_~end~0.offset))} assume !!(0 != ~end~0.base || 0 != ~end~0.offset); {10909#(and (= 0 (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) (+ main_~end~0.offset 8))) (= 0 main_~end~0.offset))} is VALID [2020-07-08 16:25:44,085 INFO L280 TraceCheckUtils]: 34: Hoare triple {10909#(and (= 0 (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) (+ main_~end~0.offset 8))) (= 0 main_~end~0.offset))} goto; {10909#(and (= 0 (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) (+ main_~end~0.offset 8))) (= 0 main_~end~0.offset))} is VALID [2020-07-08 16:25:44,086 INFO L280 TraceCheckUtils]: 35: Hoare triple {10909#(and (= 0 (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) (+ main_~end~0.offset 8))) (= 0 main_~end~0.offset))} assume !!(0 != ~end~0.base || 0 != ~end~0.offset); {10909#(and (= 0 (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) (+ main_~end~0.offset 8))) (= 0 main_~end~0.offset))} is VALID [2020-07-08 16:25:44,090 INFO L280 TraceCheckUtils]: 36: Hoare triple {10909#(and (= 0 (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) (+ main_~end~0.offset 8))) (= 0 main_~end~0.offset))} ~len~0 := 0; {10909#(and (= 0 (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) (+ main_~end~0.offset 8))) (= 0 main_~end~0.offset))} is VALID [2020-07-08 16:25:44,091 INFO L280 TraceCheckUtils]: 37: Hoare triple {10909#(and (= 0 (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) (+ main_~end~0.offset 8))) (= 0 main_~end~0.offset))} SUMMARY for call #t~mem19.base, #t~mem19.offset := read~$Pointer$(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1020 {10910#(and (= 0 |main_#t~mem19.offset|) (= 0 |main_#t~mem19.base|))} is VALID [2020-07-08 16:25:44,092 INFO L280 TraceCheckUtils]: 38: Hoare triple {10910#(and (= 0 |main_#t~mem19.offset|) (= 0 |main_#t~mem19.base|))} ~inner~0.base, ~inner~0.offset := #t~mem19.base, #t~mem19.offset; {10911#(and (= 0 main_~inner~0.base) (= 0 main_~inner~0.offset))} is VALID [2020-07-08 16:25:44,093 INFO L280 TraceCheckUtils]: 39: Hoare triple {10911#(and (= 0 main_~inner~0.base) (= 0 main_~inner~0.offset))} havoc #t~mem19.base, #t~mem19.offset; {10911#(and (= 0 main_~inner~0.base) (= 0 main_~inner~0.offset))} is VALID [2020-07-08 16:25:44,093 INFO L280 TraceCheckUtils]: 40: Hoare triple {10911#(and (= 0 main_~inner~0.base) (= 0 main_~inner~0.offset))} assume !!(0 != ~inner~0.base || 0 != ~inner~0.offset); {10898#false} is VALID [2020-07-08 16:25:44,094 INFO L280 TraceCheckUtils]: 41: Hoare triple {10898#false} assume 0 == ~len~0; {10898#false} is VALID [2020-07-08 16:25:44,094 INFO L280 TraceCheckUtils]: 42: Hoare triple {10898#false} ~len~0 := 1; {10898#false} is VALID [2020-07-08 16:25:44,094 INFO L280 TraceCheckUtils]: 43: Hoare triple {10898#false} assume !!(0 != ~inner~0.base || 0 != ~inner~0.offset); {10898#false} is VALID [2020-07-08 16:25:44,094 INFO L280 TraceCheckUtils]: 44: Hoare triple {10898#false} goto; {10898#false} is VALID [2020-07-08 16:25:44,094 INFO L280 TraceCheckUtils]: 45: Hoare triple {10898#false} SUMMARY for call #t~mem20.base, #t~mem20.offset := read~$Pointer$(~inner~0.base, 8 + ~inner~0.offset, 4); srcloc: L1028-6 {10898#false} is VALID [2020-07-08 16:25:44,095 INFO L280 TraceCheckUtils]: 46: Hoare triple {10898#false} assume !(0 == #t~mem20.base && 0 == #t~mem20.offset); {10898#false} is VALID [2020-07-08 16:25:44,095 INFO L280 TraceCheckUtils]: 47: Hoare triple {10898#false} havoc #t~mem20.base, #t~mem20.offset; {10898#false} is VALID [2020-07-08 16:25:44,095 INFO L280 TraceCheckUtils]: 48: Hoare triple {10898#false} assume !false; {10898#false} is VALID [2020-07-08 16:25:44,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:25:44,102 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:44,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [909030389] [2020-07-08 16:25:44,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:25:44,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-08 16:25:44,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753745692] [2020-07-08 16:25:44,104 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 49 [2020-07-08 16:25:44,105 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:25:44,105 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-08 16:25:44,165 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 49 edges. 49 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:44,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-08 16:25:44,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:25:44,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-08 16:25:44,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-07-08 16:25:44,166 INFO L87 Difference]: Start difference. First operand 177 states and 188 transitions. Second operand 11 states. [2020-07-08 16:25:48,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:48,290 INFO L93 Difference]: Finished difference Result 374 states and 398 transitions. [2020-07-08 16:25:48,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-08 16:25:48,290 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 49 [2020-07-08 16:25:48,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:25:48,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 16:25:48,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 370 transitions. [2020-07-08 16:25:48,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 16:25:48,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 370 transitions. [2020-07-08 16:25:48,297 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 370 transitions. [2020-07-08 16:25:48,704 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 370 edges. 370 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:48,711 INFO L225 Difference]: With dead ends: 374 [2020-07-08 16:25:48,711 INFO L226 Difference]: Without dead ends: 306 [2020-07-08 16:25:48,713 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2020-07-08 16:25:48,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-07-08 16:25:49,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 196. [2020-07-08 16:25:49,635 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:25:49,636 INFO L82 GeneralOperation]: Start isEquivalent. First operand 306 states. Second operand 196 states. [2020-07-08 16:25:49,636 INFO L74 IsIncluded]: Start isIncluded. First operand 306 states. Second operand 196 states. [2020-07-08 16:25:49,636 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 196 states. [2020-07-08 16:25:49,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:49,643 INFO L93 Difference]: Finished difference Result 306 states and 324 transitions. [2020-07-08 16:25:49,643 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 324 transitions. [2020-07-08 16:25:49,644 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:49,644 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:49,644 INFO L74 IsIncluded]: Start isIncluded. First operand 196 states. Second operand 306 states. [2020-07-08 16:25:49,645 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 306 states. [2020-07-08 16:25:49,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:49,653 INFO L93 Difference]: Finished difference Result 306 states and 324 transitions. [2020-07-08 16:25:49,653 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 324 transitions. [2020-07-08 16:25:49,654 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:49,654 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:49,654 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:25:49,654 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:25:49,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-07-08 16:25:49,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 208 transitions. [2020-07-08 16:25:49,659 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 208 transitions. Word has length 49 [2020-07-08 16:25:49,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:25:49,659 INFO L479 AbstractCegarLoop]: Abstraction has 196 states and 208 transitions. [2020-07-08 16:25:49,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-08 16:25:49,659 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 196 states and 208 transitions. [2020-07-08 16:25:50,087 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 208 edges. 208 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:50,087 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 208 transitions. [2020-07-08 16:25:50,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-08 16:25:50,088 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:50,089 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:25:50,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-08 16:25:50,089 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:25:50,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:50,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1643041774, now seen corresponding path program 1 times [2020-07-08 16:25:50,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:50,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1099144037] [2020-07-08 16:25:50,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:50,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:50,667 INFO L280 TraceCheckUtils]: 0: Hoare triple {12711#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {12693#true} is VALID [2020-07-08 16:25:50,667 INFO L280 TraceCheckUtils]: 1: Hoare triple {12693#true} #valid := #valid[0 := 0]; {12693#true} is VALID [2020-07-08 16:25:50,668 INFO L280 TraceCheckUtils]: 2: Hoare triple {12693#true} assume 0 < #StackHeapBarrier; {12693#true} is VALID [2020-07-08 16:25:50,668 INFO L280 TraceCheckUtils]: 3: Hoare triple {12693#true} assume true; {12693#true} is VALID [2020-07-08 16:25:50,668 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {12693#true} {12693#true} #414#return; {12693#true} is VALID [2020-07-08 16:25:50,669 INFO L263 TraceCheckUtils]: 0: Hoare triple {12693#true} call ULTIMATE.init(); {12711#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 16:25:50,669 INFO L280 TraceCheckUtils]: 1: Hoare triple {12711#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {12693#true} is VALID [2020-07-08 16:25:50,669 INFO L280 TraceCheckUtils]: 2: Hoare triple {12693#true} #valid := #valid[0 := 0]; {12693#true} is VALID [2020-07-08 16:25:50,670 INFO L280 TraceCheckUtils]: 3: Hoare triple {12693#true} assume 0 < #StackHeapBarrier; {12693#true} is VALID [2020-07-08 16:25:50,670 INFO L280 TraceCheckUtils]: 4: Hoare triple {12693#true} assume true; {12693#true} is VALID [2020-07-08 16:25:50,670 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {12693#true} {12693#true} #414#return; {12693#true} is VALID [2020-07-08 16:25:50,670 INFO L263 TraceCheckUtils]: 6: Hoare triple {12693#true} call #t~ret28 := main(); {12693#true} is VALID [2020-07-08 16:25:50,671 INFO L280 TraceCheckUtils]: 7: Hoare triple {12693#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {12700#(and (= 1 (select |#valid| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|))} is VALID [2020-07-08 16:25:50,672 INFO L280 TraceCheckUtils]: 8: Hoare triple {12700#(and (= 1 (select |#valid| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|))} ~list~0.base, ~list~0.offset := #t~malloc0.base, #t~malloc0.offset; {12701#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-08 16:25:50,673 INFO L280 TraceCheckUtils]: 9: Hoare triple {12701#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {12701#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-08 16:25:50,674 INFO L280 TraceCheckUtils]: 10: Hoare triple {12701#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {12701#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-08 16:25:50,674 INFO L280 TraceCheckUtils]: 11: Hoare triple {12701#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} assume !!(~list~0.base != 0 || ~list~0.offset != 0); {12701#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-08 16:25:50,675 INFO L280 TraceCheckUtils]: 12: Hoare triple {12701#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} goto; {12701#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-08 16:25:50,675 INFO L280 TraceCheckUtils]: 13: Hoare triple {12701#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {12701#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-08 16:25:50,676 INFO L280 TraceCheckUtils]: 14: Hoare triple {12701#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} assume !(0 != #t~nondet1); {12701#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-08 16:25:50,678 INFO L280 TraceCheckUtils]: 15: Hoare triple {12701#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} havoc #t~nondet1; {12701#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-08 16:25:50,678 INFO L280 TraceCheckUtils]: 16: Hoare triple {12701#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} SUMMARY for call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12); srcloc: L995-10 {12702#(and (= 0 |main_#t~malloc2.offset|) (<= 0 main_~list~0.offset) (not (= |main_#t~malloc2.base| main_~list~0.base)) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:50,680 INFO L280 TraceCheckUtils]: 17: Hoare triple {12702#(and (= 0 |main_#t~malloc2.offset|) (<= 0 main_~list~0.offset) (not (= |main_#t~malloc2.base| main_~list~0.base)) (<= main_~list~0.offset 0))} SUMMARY for call write~$Pointer$(#t~malloc2.base, #t~malloc2.offset, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-11 {12703#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8)) main_~list~0.base)))} is VALID [2020-07-08 16:25:50,684 INFO L280 TraceCheckUtils]: 18: Hoare triple {12703#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8)) main_~list~0.base)))} SUMMARY for call #t~mem3.base, #t~mem3.offset := read~$Pointer$(~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-12 {12704#(and (= (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8)) |main_#t~mem3.base|) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0) (not (= |main_#t~mem3.base| main_~list~0.base)))} is VALID [2020-07-08 16:25:50,688 INFO L280 TraceCheckUtils]: 19: Hoare triple {12704#(and (= (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8)) |main_#t~mem3.base|) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0) (not (= |main_#t~mem3.base| main_~list~0.base)))} SUMMARY for call write~$Pointer$(0, 0, #t~mem3.base, #t~mem3.offset, 4); srcloc: L995-13 {12703#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8)) main_~list~0.base)))} is VALID [2020-07-08 16:25:50,690 INFO L280 TraceCheckUtils]: 20: Hoare triple {12703#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8)) main_~list~0.base)))} havoc #t~mem3.base, #t~mem3.offset; {12703#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8)) main_~list~0.base)))} is VALID [2020-07-08 16:25:50,691 INFO L280 TraceCheckUtils]: 21: Hoare triple {12703#(and (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8)) main_~list~0.base)))} SUMMARY for call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-15 {12705#(and (not (= |main_#t~mem4.base| main_~list~0.base)) (= 0 |main_#t~mem4.offset|) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8)) |main_#t~mem4.base|) (<= main_~list~0.offset 0) (< |main_#t~mem4.offset| (+ main_~list~0.offset 1)))} is VALID [2020-07-08 16:25:50,693 INFO L280 TraceCheckUtils]: 22: Hoare triple {12705#(and (not (= |main_#t~mem4.base| main_~list~0.base)) (= 0 |main_#t~mem4.offset|) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8)) |main_#t~mem4.base|) (<= main_~list~0.offset 0) (< |main_#t~mem4.offset| (+ main_~list~0.offset 1)))} SUMMARY for call write~$Pointer$(0, 0, #t~mem4.base, 8 + #t~mem4.offset, 4); srcloc: L995-16 {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:50,694 INFO L280 TraceCheckUtils]: 23: Hoare triple {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} havoc #t~mem4.base, #t~mem4.offset; {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:50,695 INFO L280 TraceCheckUtils]: 24: Hoare triple {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-34 {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:50,696 INFO L280 TraceCheckUtils]: 25: Hoare triple {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} #t~short7 := #t~mem5.base != 0 || #t~mem5.offset != 0; {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:50,697 INFO L280 TraceCheckUtils]: 26: Hoare triple {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} assume #t~short7; {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:50,698 INFO L280 TraceCheckUtils]: 27: Hoare triple {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} assume !!#t~short7; {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:50,698 INFO L280 TraceCheckUtils]: 28: Hoare triple {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} havoc #t~mem6.base, #t~mem6.offset; {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:50,699 INFO L280 TraceCheckUtils]: 29: Hoare triple {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} havoc #t~mem5.base, #t~mem5.offset; {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:50,700 INFO L280 TraceCheckUtils]: 30: Hoare triple {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} havoc #t~short7; {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:50,700 INFO L280 TraceCheckUtils]: 31: Hoare triple {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} goto; {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:50,701 INFO L280 TraceCheckUtils]: 32: Hoare triple {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:50,702 INFO L280 TraceCheckUtils]: 33: Hoare triple {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:50,703 INFO L280 TraceCheckUtils]: 34: Hoare triple {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} assume !(0 != #t~nondet8); {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:50,704 INFO L280 TraceCheckUtils]: 35: Hoare triple {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} havoc #t~nondet8; {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:50,705 INFO L280 TraceCheckUtils]: 36: Hoare triple {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} ~end~0.base, ~end~0.offset := 0, 0; {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} is VALID [2020-07-08 16:25:50,706 INFO L280 TraceCheckUtils]: 37: Hoare triple {12706#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (+ main_~list~0.offset 8)) 0) (<= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (<= main_~list~0.offset 0))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {12707#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) 8)) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) 8)) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) (+ main_~end~0.offset 8))))} is VALID [2020-07-08 16:25:50,706 INFO L280 TraceCheckUtils]: 38: Hoare triple {12707#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) 8)) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) 8)) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) (+ main_~end~0.offset 8))))} assume !!(0 != ~end~0.base || 0 != ~end~0.offset); {12707#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) 8)) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) 8)) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) (+ main_~end~0.offset 8))))} is VALID [2020-07-08 16:25:50,707 INFO L280 TraceCheckUtils]: 39: Hoare triple {12707#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) 8)) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) 8)) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) (+ main_~end~0.offset 8))))} goto; {12707#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) 8)) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) 8)) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) (+ main_~end~0.offset 8))))} is VALID [2020-07-08 16:25:50,708 INFO L280 TraceCheckUtils]: 40: Hoare triple {12707#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) 8)) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) 8)) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) (+ main_~end~0.offset 8))))} assume !!(0 != ~end~0.base || 0 != ~end~0.offset); {12707#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) 8)) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) 8)) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) (+ main_~end~0.offset 8))))} is VALID [2020-07-08 16:25:50,709 INFO L280 TraceCheckUtils]: 41: Hoare triple {12707#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) 8)) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) 8)) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) (+ main_~end~0.offset 8))))} ~len~0 := 0; {12707#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) 8)) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) 8)) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) (+ main_~end~0.offset 8))))} is VALID [2020-07-08 16:25:50,710 INFO L280 TraceCheckUtils]: 42: Hoare triple {12707#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) 8)) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) (+ main_~end~0.offset 8))) 8)) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) (+ main_~end~0.offset 8))))} SUMMARY for call #t~mem19.base, #t~mem19.offset := read~$Pointer$(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1020 {12708#(and (= (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) 8) 0) (= 0 |main_#t~mem19.offset|) (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) 8)))} is VALID [2020-07-08 16:25:50,711 INFO L280 TraceCheckUtils]: 43: Hoare triple {12708#(and (= (select (select |#memory_$Pointer$.offset| |main_#t~mem19.base|) 8) 0) (= 0 |main_#t~mem19.offset|) (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem19.base|) 8)))} ~inner~0.base, ~inner~0.offset := #t~mem19.base, #t~mem19.offset; {12709#(and (= 0 main_~inner~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~inner~0.base) (+ main_~inner~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.base| main_~inner~0.base) (+ main_~inner~0.offset 8))))} is VALID [2020-07-08 16:25:50,711 INFO L280 TraceCheckUtils]: 44: Hoare triple {12709#(and (= 0 main_~inner~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~inner~0.base) (+ main_~inner~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.base| main_~inner~0.base) (+ main_~inner~0.offset 8))))} havoc #t~mem19.base, #t~mem19.offset; {12709#(and (= 0 main_~inner~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~inner~0.base) (+ main_~inner~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.base| main_~inner~0.base) (+ main_~inner~0.offset 8))))} is VALID [2020-07-08 16:25:50,712 INFO L280 TraceCheckUtils]: 45: Hoare triple {12709#(and (= 0 main_~inner~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~inner~0.base) (+ main_~inner~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.base| main_~inner~0.base) (+ main_~inner~0.offset 8))))} assume !!(0 != ~inner~0.base || 0 != ~inner~0.offset); {12709#(and (= 0 main_~inner~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~inner~0.base) (+ main_~inner~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.base| main_~inner~0.base) (+ main_~inner~0.offset 8))))} is VALID [2020-07-08 16:25:50,713 INFO L280 TraceCheckUtils]: 46: Hoare triple {12709#(and (= 0 main_~inner~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~inner~0.base) (+ main_~inner~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.base| main_~inner~0.base) (+ main_~inner~0.offset 8))))} assume 0 == ~len~0; {12709#(and (= 0 main_~inner~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~inner~0.base) (+ main_~inner~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.base| main_~inner~0.base) (+ main_~inner~0.offset 8))))} is VALID [2020-07-08 16:25:50,713 INFO L280 TraceCheckUtils]: 47: Hoare triple {12709#(and (= 0 main_~inner~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~inner~0.base) (+ main_~inner~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.base| main_~inner~0.base) (+ main_~inner~0.offset 8))))} ~len~0 := 1; {12709#(and (= 0 main_~inner~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~inner~0.base) (+ main_~inner~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.base| main_~inner~0.base) (+ main_~inner~0.offset 8))))} is VALID [2020-07-08 16:25:50,714 INFO L280 TraceCheckUtils]: 48: Hoare triple {12709#(and (= 0 main_~inner~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~inner~0.base) (+ main_~inner~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.base| main_~inner~0.base) (+ main_~inner~0.offset 8))))} assume !!(0 != ~inner~0.base || 0 != ~inner~0.offset); {12709#(and (= 0 main_~inner~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~inner~0.base) (+ main_~inner~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.base| main_~inner~0.base) (+ main_~inner~0.offset 8))))} is VALID [2020-07-08 16:25:50,714 INFO L280 TraceCheckUtils]: 49: Hoare triple {12709#(and (= 0 main_~inner~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~inner~0.base) (+ main_~inner~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.base| main_~inner~0.base) (+ main_~inner~0.offset 8))))} goto; {12709#(and (= 0 main_~inner~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~inner~0.base) (+ main_~inner~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.base| main_~inner~0.base) (+ main_~inner~0.offset 8))))} is VALID [2020-07-08 16:25:50,715 INFO L280 TraceCheckUtils]: 50: Hoare triple {12709#(and (= 0 main_~inner~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~inner~0.base) (+ main_~inner~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.base| main_~inner~0.base) (+ main_~inner~0.offset 8))))} SUMMARY for call #t~mem20.base, #t~mem20.offset := read~$Pointer$(~inner~0.base, 8 + ~inner~0.offset, 4); srcloc: L1028-6 {12710#(and (= 0 |main_#t~mem20.base|) (= 0 |main_#t~mem20.offset|))} is VALID [2020-07-08 16:25:50,717 INFO L280 TraceCheckUtils]: 51: Hoare triple {12710#(and (= 0 |main_#t~mem20.base|) (= 0 |main_#t~mem20.offset|))} assume !(0 == #t~mem20.base && 0 == #t~mem20.offset); {12694#false} is VALID [2020-07-08 16:25:50,717 INFO L280 TraceCheckUtils]: 52: Hoare triple {12694#false} havoc #t~mem20.base, #t~mem20.offset; {12694#false} is VALID [2020-07-08 16:25:50,718 INFO L280 TraceCheckUtils]: 53: Hoare triple {12694#false} assume !false; {12694#false} is VALID [2020-07-08 16:25:50,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:25:50,730 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:50,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1099144037] [2020-07-08 16:25:50,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:25:50,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-08 16:25:50,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048835882] [2020-07-08 16:25:50,731 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 54 [2020-07-08 16:25:50,731 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:25:50,732 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states. [2020-07-08 16:25:50,802 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 54 edges. 54 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:50,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-08 16:25:50,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:25:50,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-08 16:25:50,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-07-08 16:25:50,803 INFO L87 Difference]: Start difference. First operand 196 states and 208 transitions. Second operand 14 states. [2020-07-08 16:25:54,144 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2020-07-08 16:25:55,556 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-07-08 16:26:01,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:01,905 INFO L93 Difference]: Finished difference Result 589 states and 622 transitions. [2020-07-08 16:26:01,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-08 16:26:01,905 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 54 [2020-07-08 16:26:01,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:26:01,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-08 16:26:01,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 551 transitions. [2020-07-08 16:26:01,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-08 16:26:01,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 551 transitions. [2020-07-08 16:26:01,914 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 25 states and 551 transitions. [2020-07-08 16:26:02,724 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 551 edges. 551 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:02,743 INFO L225 Difference]: With dead ends: 589 [2020-07-08 16:26:02,743 INFO L226 Difference]: Without dead ends: 586 [2020-07-08 16:26:02,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=252, Invalid=804, Unknown=0, NotChecked=0, Total=1056 [2020-07-08 16:26:02,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2020-07-08 16:26:04,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 213. [2020-07-08 16:26:04,139 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:26:04,139 INFO L82 GeneralOperation]: Start isEquivalent. First operand 586 states. Second operand 213 states. [2020-07-08 16:26:04,139 INFO L74 IsIncluded]: Start isIncluded. First operand 586 states. Second operand 213 states. [2020-07-08 16:26:04,139 INFO L87 Difference]: Start difference. First operand 586 states. Second operand 213 states. [2020-07-08 16:26:04,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:04,164 INFO L93 Difference]: Finished difference Result 586 states and 619 transitions. [2020-07-08 16:26:04,164 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 619 transitions. [2020-07-08 16:26:04,166 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:04,166 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:04,166 INFO L74 IsIncluded]: Start isIncluded. First operand 213 states. Second operand 586 states. [2020-07-08 16:26:04,166 INFO L87 Difference]: Start difference. First operand 213 states. Second operand 586 states. [2020-07-08 16:26:04,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:04,189 INFO L93 Difference]: Finished difference Result 586 states and 619 transitions. [2020-07-08 16:26:04,189 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 619 transitions. [2020-07-08 16:26:04,191 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:04,191 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:04,191 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:26:04,191 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:26:04,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-07-08 16:26:04,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 226 transitions. [2020-07-08 16:26:04,196 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 226 transitions. Word has length 54 [2020-07-08 16:26:04,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:26:04,197 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 226 transitions. [2020-07-08 16:26:04,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-08 16:26:04,197 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 213 states and 226 transitions. [2020-07-08 16:26:04,876 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 226 edges. 226 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:04,876 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 226 transitions. [2020-07-08 16:26:04,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-08 16:26:04,877 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:26:04,877 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, 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 16:26:04,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-08 16:26:04,878 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:26:04,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:26:04,878 INFO L82 PathProgramCache]: Analyzing trace with hash 358720869, now seen corresponding path program 1 times [2020-07-08 16:26:04,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:26:04,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1434054709] [2020-07-08 16:26:04,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:26:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:05,082 INFO L280 TraceCheckUtils]: 0: Hoare triple {15540#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {15528#true} is VALID [2020-07-08 16:26:05,082 INFO L280 TraceCheckUtils]: 1: Hoare triple {15528#true} #valid := #valid[0 := 0]; {15528#true} is VALID [2020-07-08 16:26:05,082 INFO L280 TraceCheckUtils]: 2: Hoare triple {15528#true} assume 0 < #StackHeapBarrier; {15528#true} is VALID [2020-07-08 16:26:05,083 INFO L280 TraceCheckUtils]: 3: Hoare triple {15528#true} assume true; {15528#true} is VALID [2020-07-08 16:26:05,083 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {15528#true} {15528#true} #414#return; {15528#true} is VALID [2020-07-08 16:26:05,084 INFO L263 TraceCheckUtils]: 0: Hoare triple {15528#true} call ULTIMATE.init(); {15540#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 16:26:05,084 INFO L280 TraceCheckUtils]: 1: Hoare triple {15540#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {15528#true} is VALID [2020-07-08 16:26:05,084 INFO L280 TraceCheckUtils]: 2: Hoare triple {15528#true} #valid := #valid[0 := 0]; {15528#true} is VALID [2020-07-08 16:26:05,084 INFO L280 TraceCheckUtils]: 3: Hoare triple {15528#true} assume 0 < #StackHeapBarrier; {15528#true} is VALID [2020-07-08 16:26:05,085 INFO L280 TraceCheckUtils]: 4: Hoare triple {15528#true} assume true; {15528#true} is VALID [2020-07-08 16:26:05,085 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {15528#true} {15528#true} #414#return; {15528#true} is VALID [2020-07-08 16:26:05,085 INFO L263 TraceCheckUtils]: 6: Hoare triple {15528#true} call #t~ret28 := main(); {15528#true} is VALID [2020-07-08 16:26:05,085 INFO L280 TraceCheckUtils]: 7: Hoare triple {15528#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {15528#true} is VALID [2020-07-08 16:26:05,085 INFO L280 TraceCheckUtils]: 8: Hoare triple {15528#true} ~list~0.base, ~list~0.offset := #t~malloc0.base, #t~malloc0.offset; {15528#true} is VALID [2020-07-08 16:26:05,086 INFO L280 TraceCheckUtils]: 9: Hoare triple {15528#true} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {15528#true} is VALID [2020-07-08 16:26:05,086 INFO L280 TraceCheckUtils]: 10: Hoare triple {15528#true} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {15528#true} is VALID [2020-07-08 16:26:05,086 INFO L280 TraceCheckUtils]: 11: Hoare triple {15528#true} assume !!(~list~0.base != 0 || ~list~0.offset != 0); {15528#true} is VALID [2020-07-08 16:26:05,086 INFO L280 TraceCheckUtils]: 12: Hoare triple {15528#true} goto; {15528#true} is VALID [2020-07-08 16:26:05,086 INFO L280 TraceCheckUtils]: 13: Hoare triple {15528#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {15528#true} is VALID [2020-07-08 16:26:05,087 INFO L280 TraceCheckUtils]: 14: Hoare triple {15528#true} assume 0 != #t~nondet1; {15528#true} is VALID [2020-07-08 16:26:05,087 INFO L280 TraceCheckUtils]: 15: Hoare triple {15528#true} havoc #t~nondet1; {15528#true} is VALID [2020-07-08 16:26:05,087 INFO L280 TraceCheckUtils]: 16: Hoare triple {15528#true} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-7 {15528#true} is VALID [2020-07-08 16:26:05,088 INFO L280 TraceCheckUtils]: 17: Hoare triple {15528#true} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-34 {15535#(and (= |main_#t~mem5.offset| (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8)) |main_#t~mem5.base|))} is VALID [2020-07-08 16:26:05,089 INFO L280 TraceCheckUtils]: 18: Hoare triple {15535#(and (= |main_#t~mem5.offset| (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8)) |main_#t~mem5.base|))} #t~short7 := #t~mem5.base != 0 || #t~mem5.offset != 0; {15536#(or |main_#t~short7| (and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8)))))} is VALID [2020-07-08 16:26:05,090 INFO L280 TraceCheckUtils]: 19: Hoare triple {15536#(or |main_#t~short7| (and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8)))))} assume !#t~short7; {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,090 INFO L280 TraceCheckUtils]: 20: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} SUMMARY for call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-22 {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,092 INFO L280 TraceCheckUtils]: 21: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} #t~short7 := #t~mem6.base == 0 && #t~mem6.offset == 0; {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,092 INFO L280 TraceCheckUtils]: 22: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} assume !!#t~short7; {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,093 INFO L280 TraceCheckUtils]: 23: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~mem6.base, #t~mem6.offset; {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,094 INFO L280 TraceCheckUtils]: 24: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~mem5.base, #t~mem5.offset; {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,095 INFO L280 TraceCheckUtils]: 25: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~short7; {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,096 INFO L280 TraceCheckUtils]: 26: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} goto; {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,096 INFO L280 TraceCheckUtils]: 27: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,097 INFO L280 TraceCheckUtils]: 28: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,098 INFO L280 TraceCheckUtils]: 29: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} assume !(0 != #t~nondet8); {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,099 INFO L280 TraceCheckUtils]: 30: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~nondet8; {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,099 INFO L280 TraceCheckUtils]: 31: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := 0, 0; {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,100 INFO L280 TraceCheckUtils]: 32: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,101 INFO L280 TraceCheckUtils]: 33: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} assume !!(0 != ~end~0.base || 0 != ~end~0.offset); {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,101 INFO L280 TraceCheckUtils]: 34: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} goto; {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,102 INFO L280 TraceCheckUtils]: 35: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} assume !!(0 != ~end~0.base || 0 != ~end~0.offset); {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,103 INFO L280 TraceCheckUtils]: 36: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} ~len~0 := 0; {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,104 INFO L280 TraceCheckUtils]: 37: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} SUMMARY for call #t~mem19.base, #t~mem19.offset := read~$Pointer$(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1020 {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,104 INFO L280 TraceCheckUtils]: 38: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} ~inner~0.base, ~inner~0.offset := #t~mem19.base, #t~mem19.offset; {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,105 INFO L280 TraceCheckUtils]: 39: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~mem19.base, #t~mem19.offset; {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,106 INFO L280 TraceCheckUtils]: 40: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} assume !(0 != ~inner~0.base || 0 != ~inner~0.offset); {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,106 INFO L280 TraceCheckUtils]: 41: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} assume !!(~len~0 <= 1); {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,107 INFO L280 TraceCheckUtils]: 42: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} goto; {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,108 INFO L280 TraceCheckUtils]: 43: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} SUMMARY for call #t~mem23.base, #t~mem23.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1032-4 {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,109 INFO L280 TraceCheckUtils]: 44: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := #t~mem23.base, #t~mem23.offset; {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,110 INFO L280 TraceCheckUtils]: 45: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~mem23.base, #t~mem23.offset; {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,110 INFO L280 TraceCheckUtils]: 46: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} assume !(0 != ~end~0.base || 0 != ~end~0.offset); {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,111 INFO L280 TraceCheckUtils]: 47: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} assume !!(0 != ~list~0.base || 0 != ~list~0.offset); {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 16:26:05,111 INFO L280 TraceCheckUtils]: 48: Hoare triple {15537#(and (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 8))))} SUMMARY for call #t~mem24.base, #t~mem24.offset := read~$Pointer$(~list~0.base, 8 + ~list~0.offset, 4); srcloc: L1040 {15538#(and (= 0 |main_#t~mem24.offset|) (= 0 |main_#t~mem24.base|))} is VALID [2020-07-08 16:26:05,112 INFO L280 TraceCheckUtils]: 49: Hoare triple {15538#(and (= 0 |main_#t~mem24.offset|) (= 0 |main_#t~mem24.base|))} ~end~0.base, ~end~0.offset := #t~mem24.base, #t~mem24.offset; {15539#(and (= 0 main_~end~0.base) (= 0 main_~end~0.offset))} is VALID [2020-07-08 16:26:05,112 INFO L280 TraceCheckUtils]: 50: Hoare triple {15539#(and (= 0 main_~end~0.base) (= 0 main_~end~0.offset))} havoc #t~mem24.base, #t~mem24.offset; {15539#(and (= 0 main_~end~0.base) (= 0 main_~end~0.offset))} is VALID [2020-07-08 16:26:05,113 INFO L280 TraceCheckUtils]: 51: Hoare triple {15539#(and (= 0 main_~end~0.base) (= 0 main_~end~0.offset))} assume 0 != ~end~0.base || 0 != ~end~0.offset; {15529#false} is VALID [2020-07-08 16:26:05,113 INFO L280 TraceCheckUtils]: 52: Hoare triple {15529#false} assume !(0 != ~end~0.base || 0 != ~end~0.offset); {15529#false} is VALID [2020-07-08 16:26:05,113 INFO L280 TraceCheckUtils]: 53: Hoare triple {15529#false} assume !false; {15529#false} is VALID [2020-07-08 16:26:05,125 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 16:26:05,126 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:26:05,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1434054709] [2020-07-08 16:26:05,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:26:05,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-08 16:26:05,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318315169] [2020-07-08 16:26:05,128 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-07-08 16:26:05,128 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:26:05,128 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-08 16:26:05,192 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 54 edges. 54 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:05,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-08 16:26:05,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:26:05,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-08 16:26:05,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-08 16:26:05,194 INFO L87 Difference]: Start difference. First operand 213 states and 226 transitions. Second operand 8 states. [2020-07-08 16:26:08,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:08,410 INFO L93 Difference]: Finished difference Result 297 states and 316 transitions. [2020-07-08 16:26:08,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-08 16:26:08,410 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-07-08 16:26:08,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:26:08,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-08 16:26:08,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 267 transitions. [2020-07-08 16:26:08,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-08 16:26:08,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 267 transitions. [2020-07-08 16:26:08,417 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states and 267 transitions. [2020-07-08 16:26:08,702 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 267 edges. 267 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:08,709 INFO L225 Difference]: With dead ends: 297 [2020-07-08 16:26:08,709 INFO L226 Difference]: Without dead ends: 267 [2020-07-08 16:26:08,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-07-08 16:26:08,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-07-08 16:26:10,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 248. [2020-07-08 16:26:10,412 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:26:10,412 INFO L82 GeneralOperation]: Start isEquivalent. First operand 267 states. Second operand 248 states. [2020-07-08 16:26:10,412 INFO L74 IsIncluded]: Start isIncluded. First operand 267 states. Second operand 248 states. [2020-07-08 16:26:10,412 INFO L87 Difference]: Start difference. First operand 267 states. Second operand 248 states. [2020-07-08 16:26:10,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:10,418 INFO L93 Difference]: Finished difference Result 267 states and 284 transitions. [2020-07-08 16:26:10,418 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 284 transitions. [2020-07-08 16:26:10,418 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:10,418 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:10,419 INFO L74 IsIncluded]: Start isIncluded. First operand 248 states. Second operand 267 states. [2020-07-08 16:26:10,419 INFO L87 Difference]: Start difference. First operand 248 states. Second operand 267 states. [2020-07-08 16:26:10,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:10,424 INFO L93 Difference]: Finished difference Result 267 states and 284 transitions. [2020-07-08 16:26:10,425 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 284 transitions. [2020-07-08 16:26:10,425 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:10,425 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:10,426 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:26:10,426 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:26:10,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2020-07-08 16:26:10,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 268 transitions. [2020-07-08 16:26:10,430 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 268 transitions. Word has length 54 [2020-07-08 16:26:10,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:26:10,430 INFO L479 AbstractCegarLoop]: Abstraction has 248 states and 268 transitions. [2020-07-08 16:26:10,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-08 16:26:10,430 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 248 states and 268 transitions. [2020-07-08 16:26:11,288 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 268 edges. 268 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:11,289 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 268 transitions. [2020-07-08 16:26:11,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-08 16:26:11,290 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:26:11,290 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, 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 16:26:11,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-08 16:26:11,291 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:26:11,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:26:11,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1270543956, now seen corresponding path program 1 times [2020-07-08 16:26:11,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:26:11,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132716040] [2020-07-08 16:26:11,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:26:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:11,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:11,342 INFO L280 TraceCheckUtils]: 0: Hoare triple {17183#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {17175#true} is VALID [2020-07-08 16:26:11,343 INFO L280 TraceCheckUtils]: 1: Hoare triple {17175#true} #valid := #valid[0 := 0]; {17175#true} is VALID [2020-07-08 16:26:11,343 INFO L280 TraceCheckUtils]: 2: Hoare triple {17175#true} assume 0 < #StackHeapBarrier; {17175#true} is VALID [2020-07-08 16:26:11,343 INFO L280 TraceCheckUtils]: 3: Hoare triple {17175#true} assume true; {17175#true} is VALID [2020-07-08 16:26:11,343 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {17175#true} {17175#true} #414#return; {17175#true} is VALID [2020-07-08 16:26:11,344 INFO L263 TraceCheckUtils]: 0: Hoare triple {17175#true} call ULTIMATE.init(); {17183#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 16:26:11,344 INFO L280 TraceCheckUtils]: 1: Hoare triple {17183#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {17175#true} is VALID [2020-07-08 16:26:11,345 INFO L280 TraceCheckUtils]: 2: Hoare triple {17175#true} #valid := #valid[0 := 0]; {17175#true} is VALID [2020-07-08 16:26:11,345 INFO L280 TraceCheckUtils]: 3: Hoare triple {17175#true} assume 0 < #StackHeapBarrier; {17175#true} is VALID [2020-07-08 16:26:11,345 INFO L280 TraceCheckUtils]: 4: Hoare triple {17175#true} assume true; {17175#true} is VALID [2020-07-08 16:26:11,345 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {17175#true} {17175#true} #414#return; {17175#true} is VALID [2020-07-08 16:26:11,345 INFO L263 TraceCheckUtils]: 6: Hoare triple {17175#true} call #t~ret28 := main(); {17175#true} is VALID [2020-07-08 16:26:11,346 INFO L280 TraceCheckUtils]: 7: Hoare triple {17175#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {17175#true} is VALID [2020-07-08 16:26:11,346 INFO L280 TraceCheckUtils]: 8: Hoare triple {17175#true} ~list~0.base, ~list~0.offset := #t~malloc0.base, #t~malloc0.offset; {17175#true} is VALID [2020-07-08 16:26:11,346 INFO L280 TraceCheckUtils]: 9: Hoare triple {17175#true} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {17175#true} is VALID [2020-07-08 16:26:11,346 INFO L280 TraceCheckUtils]: 10: Hoare triple {17175#true} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {17175#true} is VALID [2020-07-08 16:26:11,347 INFO L280 TraceCheckUtils]: 11: Hoare triple {17175#true} assume !!(~list~0.base != 0 || ~list~0.offset != 0); {17175#true} is VALID [2020-07-08 16:26:11,347 INFO L280 TraceCheckUtils]: 12: Hoare triple {17175#true} goto; {17175#true} is VALID [2020-07-08 16:26:11,347 INFO L280 TraceCheckUtils]: 13: Hoare triple {17175#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {17175#true} is VALID [2020-07-08 16:26:11,347 INFO L280 TraceCheckUtils]: 14: Hoare triple {17175#true} assume 0 != #t~nondet1; {17175#true} is VALID [2020-07-08 16:26:11,347 INFO L280 TraceCheckUtils]: 15: Hoare triple {17175#true} havoc #t~nondet1; {17175#true} is VALID [2020-07-08 16:26:11,348 INFO L280 TraceCheckUtils]: 16: Hoare triple {17175#true} SUMMARY for call write~$Pointer$(0, 0, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-7 {17175#true} is VALID [2020-07-08 16:26:11,348 INFO L280 TraceCheckUtils]: 17: Hoare triple {17175#true} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-34 {17175#true} is VALID [2020-07-08 16:26:11,348 INFO L280 TraceCheckUtils]: 18: Hoare triple {17175#true} #t~short7 := #t~mem5.base != 0 || #t~mem5.offset != 0; {17175#true} is VALID [2020-07-08 16:26:11,348 INFO L280 TraceCheckUtils]: 19: Hoare triple {17175#true} assume !#t~short7; {17175#true} is VALID [2020-07-08 16:26:11,348 INFO L280 TraceCheckUtils]: 20: Hoare triple {17175#true} SUMMARY for call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~list~0.base, 8 + ~list~0.offset, 4); srcloc: L995-22 {17175#true} is VALID [2020-07-08 16:26:11,349 INFO L280 TraceCheckUtils]: 21: Hoare triple {17175#true} #t~short7 := #t~mem6.base == 0 && #t~mem6.offset == 0; {17175#true} is VALID [2020-07-08 16:26:11,349 INFO L280 TraceCheckUtils]: 22: Hoare triple {17175#true} assume !!#t~short7; {17175#true} is VALID [2020-07-08 16:26:11,349 INFO L280 TraceCheckUtils]: 23: Hoare triple {17175#true} havoc #t~mem6.base, #t~mem6.offset; {17175#true} is VALID [2020-07-08 16:26:11,349 INFO L280 TraceCheckUtils]: 24: Hoare triple {17175#true} havoc #t~mem5.base, #t~mem5.offset; {17175#true} is VALID [2020-07-08 16:26:11,349 INFO L280 TraceCheckUtils]: 25: Hoare triple {17175#true} havoc #t~short7; {17175#true} is VALID [2020-07-08 16:26:11,350 INFO L280 TraceCheckUtils]: 26: Hoare triple {17175#true} goto; {17175#true} is VALID [2020-07-08 16:26:11,350 INFO L280 TraceCheckUtils]: 27: Hoare triple {17175#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {17175#true} is VALID [2020-07-08 16:26:11,350 INFO L280 TraceCheckUtils]: 28: Hoare triple {17175#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {17175#true} is VALID [2020-07-08 16:26:11,350 INFO L280 TraceCheckUtils]: 29: Hoare triple {17175#true} assume !!(0 != #t~nondet8); {17175#true} is VALID [2020-07-08 16:26:11,350 INFO L280 TraceCheckUtils]: 30: Hoare triple {17175#true} havoc #t~nondet8; {17175#true} is VALID [2020-07-08 16:26:11,351 INFO L280 TraceCheckUtils]: 31: Hoare triple {17175#true} SUMMARY for call #t~malloc9.base, #t~malloc9.offset := #Ultimate.allocOnHeap(12); srcloc: L1003 {17175#true} is VALID [2020-07-08 16:26:11,351 INFO L280 TraceCheckUtils]: 32: Hoare triple {17175#true} SUMMARY for call write~$Pointer$(#t~malloc9.base, #t~malloc9.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1003-1 {17175#true} is VALID [2020-07-08 16:26:11,351 INFO L280 TraceCheckUtils]: 33: Hoare triple {17175#true} SUMMARY for call #t~mem10.base, #t~mem10.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1003-2 {17175#true} is VALID [2020-07-08 16:26:11,351 INFO L280 TraceCheckUtils]: 34: Hoare triple {17175#true} SUMMARY for call write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem10.base, 4 + #t~mem10.offset, 4); srcloc: L1004 {17175#true} is VALID [2020-07-08 16:26:11,352 INFO L280 TraceCheckUtils]: 35: Hoare triple {17175#true} havoc #t~mem10.base, #t~mem10.offset; {17175#true} is VALID [2020-07-08 16:26:11,352 INFO L280 TraceCheckUtils]: 36: Hoare triple {17175#true} SUMMARY for call #t~mem11.base, #t~mem11.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1005 {17175#true} is VALID [2020-07-08 16:26:11,352 INFO L280 TraceCheckUtils]: 37: Hoare triple {17175#true} ~end~0.base, ~end~0.offset := #t~mem11.base, #t~mem11.offset; {17175#true} is VALID [2020-07-08 16:26:11,352 INFO L280 TraceCheckUtils]: 38: Hoare triple {17175#true} havoc #t~mem11.base, #t~mem11.offset; {17175#true} is VALID [2020-07-08 16:26:11,352 INFO L280 TraceCheckUtils]: 39: Hoare triple {17175#true} SUMMARY for call write~$Pointer$(0, 0, ~end~0.base, ~end~0.offset, 4); srcloc: L1006 {17175#true} is VALID [2020-07-08 16:26:11,353 INFO L280 TraceCheckUtils]: 40: Hoare triple {17175#true} assume !!(0 != ~end~0.base || 0 != ~end~0.offset); {17175#true} is VALID [2020-07-08 16:26:11,353 INFO L280 TraceCheckUtils]: 41: Hoare triple {17175#true} goto; {17175#true} is VALID [2020-07-08 16:26:11,353 INFO L280 TraceCheckUtils]: 42: Hoare triple {17175#true} assume !!(~end~0.base != 0 || ~end~0.offset != 0); {17175#true} is VALID [2020-07-08 16:26:11,353 INFO L280 TraceCheckUtils]: 43: Hoare triple {17175#true} goto; {17175#true} is VALID [2020-07-08 16:26:11,354 INFO L280 TraceCheckUtils]: 44: Hoare triple {17175#true} assume -2147483648 <= #t~nondet12 && #t~nondet12 <= 2147483647; {17175#true} is VALID [2020-07-08 16:26:11,354 INFO L280 TraceCheckUtils]: 45: Hoare triple {17175#true} assume 0 != #t~nondet12; {17175#true} is VALID [2020-07-08 16:26:11,354 INFO L280 TraceCheckUtils]: 46: Hoare triple {17175#true} havoc #t~nondet12; {17175#true} is VALID [2020-07-08 16:26:11,354 INFO L280 TraceCheckUtils]: 47: Hoare triple {17175#true} SUMMARY for call write~$Pointer$(0, 0, ~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1008-7 {17175#true} is VALID [2020-07-08 16:26:11,354 INFO L280 TraceCheckUtils]: 48: Hoare triple {17175#true} SUMMARY for call #t~mem16.base, #t~mem16.offset := read~$Pointer$(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1008-34 {17175#true} is VALID [2020-07-08 16:26:11,355 INFO L280 TraceCheckUtils]: 49: Hoare triple {17175#true} #t~short18 := #t~mem16.base != 0 || #t~mem16.offset != 0; {17175#true} is VALID [2020-07-08 16:26:11,365 INFO L280 TraceCheckUtils]: 50: Hoare triple {17175#true} assume #t~short18; {17182#|main_#t~short18|} is VALID [2020-07-08 16:26:11,365 INFO L280 TraceCheckUtils]: 51: Hoare triple {17182#|main_#t~short18|} assume !#t~short18; {17176#false} is VALID [2020-07-08 16:26:11,365 INFO L280 TraceCheckUtils]: 52: Hoare triple {17176#false} havoc #t~mem17.base, #t~mem17.offset; {17176#false} is VALID [2020-07-08 16:26:11,366 INFO L280 TraceCheckUtils]: 53: Hoare triple {17176#false} havoc #t~short18; {17176#false} is VALID [2020-07-08 16:26:11,366 INFO L280 TraceCheckUtils]: 54: Hoare triple {17176#false} havoc #t~mem16.base, #t~mem16.offset; {17176#false} is VALID [2020-07-08 16:26:11,366 INFO L280 TraceCheckUtils]: 55: Hoare triple {17176#false} assume !false; {17176#false} is VALID [2020-07-08 16:26:11,367 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 16:26:11,367 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:26:11,368 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2132716040] [2020-07-08 16:26:11,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:26:11,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-08 16:26:11,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989279363] [2020-07-08 16:26:11,368 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2020-07-08 16:26:11,369 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:26:11,369 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-08 16:26:11,420 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 56 edges. 56 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:11,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-08 16:26:11,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:26:11,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-08 16:26:11,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-08 16:26:11,421 INFO L87 Difference]: Start difference. First operand 248 states and 268 transitions. Second operand 4 states. [2020-07-08 16:26:13,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:13,578 INFO L93 Difference]: Finished difference Result 254 states and 274 transitions. [2020-07-08 16:26:13,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-08 16:26:13,578 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2020-07-08 16:26:13,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:26:13,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 16:26:13,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 170 transitions. [2020-07-08 16:26:13,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 16:26:13,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 170 transitions. [2020-07-08 16:26:13,581 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 170 transitions. [2020-07-08 16:26:13,748 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 170 edges. 170 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:13,754 INFO L225 Difference]: With dead ends: 254 [2020-07-08 16:26:13,754 INFO L226 Difference]: Without dead ends: 249 [2020-07-08 16:26:13,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-08 16:26:13,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-07-08 16:26:15,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2020-07-08 16:26:15,471 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:26:15,471 INFO L82 GeneralOperation]: Start isEquivalent. First operand 249 states. Second operand 249 states. [2020-07-08 16:26:15,472 INFO L74 IsIncluded]: Start isIncluded. First operand 249 states. Second operand 249 states. [2020-07-08 16:26:15,472 INFO L87 Difference]: Start difference. First operand 249 states. Second operand 249 states. [2020-07-08 16:26:15,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:15,477 INFO L93 Difference]: Finished difference Result 249 states and 269 transitions. [2020-07-08 16:26:15,477 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 269 transitions. [2020-07-08 16:26:15,477 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:15,478 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:15,478 INFO L74 IsIncluded]: Start isIncluded. First operand 249 states. Second operand 249 states. [2020-07-08 16:26:15,478 INFO L87 Difference]: Start difference. First operand 249 states. Second operand 249 states. [2020-07-08 16:26:15,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:15,483 INFO L93 Difference]: Finished difference Result 249 states and 269 transitions. [2020-07-08 16:26:15,483 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 269 transitions. [2020-07-08 16:26:15,484 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:15,484 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:15,484 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:26:15,484 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:26:15,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-07-08 16:26:15,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 269 transitions. [2020-07-08 16:26:15,489 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 269 transitions. Word has length 56 [2020-07-08 16:26:15,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:26:15,489 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 269 transitions. [2020-07-08 16:26:15,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-08 16:26:15,490 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 249 states and 269 transitions. [2020-07-08 16:26:16,359 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 269 edges. 269 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:16,360 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 269 transitions. [2020-07-08 16:26:16,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-08 16:26:16,361 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:26:16,361 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, 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 16:26:16,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-08 16:26:16,362 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:26:16,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:26:16,362 INFO L82 PathProgramCache]: Analyzing trace with hash 2002844954, now seen corresponding path program 1 times [2020-07-08 16:26:16,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:26:16,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [937710044] [2020-07-08 16:26:16,362 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:26:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 16:26:16,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 16:26:16,429 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:26:16,430 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-08 16:26:16,430 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-08 16:26:16,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-08 16:26:16,448 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-08 16:26:16,448 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 16:26:16,448 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 16:26:16,448 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-08 16:26:16,449 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 16:26:16,449 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 16:26:16,449 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 16:26:16,449 WARN L170 areAnnotationChecker]: L992 has no Hoare annotation [2020-07-08 16:26:16,449 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-08 16:26:16,449 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-08 16:26:16,449 WARN L170 areAnnotationChecker]: L993 has no Hoare annotation [2020-07-08 16:26:16,449 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-08 16:26:16,449 WARN L170 areAnnotationChecker]: L993-1 has no Hoare annotation [2020-07-08 16:26:16,449 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-08 16:26:16,450 WARN L170 areAnnotationChecker]: L995-3 has no Hoare annotation [2020-07-08 16:26:16,450 WARN L170 areAnnotationChecker]: L995-3 has no Hoare annotation [2020-07-08 16:26:16,450 WARN L170 areAnnotationChecker]: L995-3 has no Hoare annotation [2020-07-08 16:26:16,450 WARN L170 areAnnotationChecker]: L995-4 has no Hoare annotation [2020-07-08 16:26:16,450 WARN L170 areAnnotationChecker]: L995 has no Hoare annotation [2020-07-08 16:26:16,450 WARN L170 areAnnotationChecker]: L995 has no Hoare annotation [2020-07-08 16:26:16,450 WARN L170 areAnnotationChecker]: L995-2 has no Hoare annotation [2020-07-08 16:26:16,450 WARN L170 areAnnotationChecker]: L995-2 has no Hoare annotation [2020-07-08 16:26:16,450 WARN L170 areAnnotationChecker]: L995-5 has no Hoare annotation [2020-07-08 16:26:16,450 WARN L170 areAnnotationChecker]: L995-5 has no Hoare annotation [2020-07-08 16:26:16,451 WARN L170 areAnnotationChecker]: L995-6 has no Hoare annotation [2020-07-08 16:26:16,451 WARN L170 areAnnotationChecker]: L995-9 has no Hoare annotation [2020-07-08 16:26:16,451 WARN L170 areAnnotationChecker]: L995-7 has no Hoare annotation [2020-07-08 16:26:16,451 WARN L170 areAnnotationChecker]: L995-10 has no Hoare annotation [2020-07-08 16:26:16,451 WARN L170 areAnnotationChecker]: L995-34 has no Hoare annotation [2020-07-08 16:26:16,451 WARN L170 areAnnotationChecker]: L995-34 has no Hoare annotation [2020-07-08 16:26:16,451 WARN L170 areAnnotationChecker]: L995-11 has no Hoare annotation [2020-07-08 16:26:16,451 WARN L170 areAnnotationChecker]: L995-19 has no Hoare annotation [2020-07-08 16:26:16,452 WARN L170 areAnnotationChecker]: L995-35 has no Hoare annotation [2020-07-08 16:26:16,452 WARN L170 areAnnotationChecker]: L995-12 has no Hoare annotation [2020-07-08 16:26:16,452 WARN L170 areAnnotationChecker]: L995-20 has no Hoare annotation [2020-07-08 16:26:16,452 WARN L170 areAnnotationChecker]: L995-20 has no Hoare annotation [2020-07-08 16:26:16,452 WARN L170 areAnnotationChecker]: L1008-35 has no Hoare annotation [2020-07-08 16:26:16,452 WARN L170 areAnnotationChecker]: L1008-35 has no Hoare annotation [2020-07-08 16:26:16,452 WARN L170 areAnnotationChecker]: L995-13 has no Hoare annotation [2020-07-08 16:26:16,453 WARN L170 areAnnotationChecker]: L995-24 has no Hoare annotation [2020-07-08 16:26:16,453 WARN L170 areAnnotationChecker]: L995-24 has no Hoare annotation [2020-07-08 16:26:16,453 WARN L170 areAnnotationChecker]: L995-22 has no Hoare annotation [2020-07-08 16:26:16,453 WARN L170 areAnnotationChecker]: L1000-5 has no Hoare annotation [2020-07-08 16:26:16,453 WARN L170 areAnnotationChecker]: L1000-1 has no Hoare annotation [2020-07-08 16:26:16,453 WARN L170 areAnnotationChecker]: L1000-1 has no Hoare annotation [2020-07-08 16:26:16,453 WARN L170 areAnnotationChecker]: L995-14 has no Hoare annotation [2020-07-08 16:26:16,453 WARN L170 areAnnotationChecker]: L995-25 has no Hoare annotation [2020-07-08 16:26:16,454 WARN L170 areAnnotationChecker]: L995-30 has no Hoare annotation [2020-07-08 16:26:16,454 WARN L170 areAnnotationChecker]: L995-23 has no Hoare annotation [2020-07-08 16:26:16,454 WARN L170 areAnnotationChecker]: L1012 has no Hoare annotation [2020-07-08 16:26:16,454 WARN L170 areAnnotationChecker]: L1000-2 has no Hoare annotation [2020-07-08 16:26:16,454 WARN L170 areAnnotationChecker]: L1000-4 has no Hoare annotation [2020-07-08 16:26:16,454 WARN L170 areAnnotationChecker]: L995-15 has no Hoare annotation [2020-07-08 16:26:16,454 WARN L170 areAnnotationChecker]: L995-26 has no Hoare annotation [2020-07-08 16:26:16,454 WARN L170 areAnnotationChecker]: L995-31 has no Hoare annotation [2020-07-08 16:26:16,454 WARN L170 areAnnotationChecker]: L1015-4 has no Hoare annotation [2020-07-08 16:26:16,455 WARN L170 areAnnotationChecker]: L1015-4 has no Hoare annotation [2020-07-08 16:26:16,455 WARN L170 areAnnotationChecker]: L1015-4 has no Hoare annotation [2020-07-08 16:26:16,455 WARN L170 areAnnotationChecker]: L1003 has no Hoare annotation [2020-07-08 16:26:16,455 WARN L170 areAnnotationChecker]: L995-16 has no Hoare annotation [2020-07-08 16:26:16,455 WARN L170 areAnnotationChecker]: L995-27 has no Hoare annotation [2020-07-08 16:26:16,455 WARN L170 areAnnotationChecker]: L995-32 has no Hoare annotation [2020-07-08 16:26:16,455 WARN L170 areAnnotationChecker]: L1017-1 has no Hoare annotation [2020-07-08 16:26:16,455 WARN L170 areAnnotationChecker]: L1017-1 has no Hoare annotation [2020-07-08 16:26:16,456 WARN L170 areAnnotationChecker]: L1017-1 has no Hoare annotation [2020-07-08 16:26:16,456 WARN L170 areAnnotationChecker]: L1015-1 has no Hoare annotation [2020-07-08 16:26:16,456 WARN L170 areAnnotationChecker]: L1015-1 has no Hoare annotation [2020-07-08 16:26:16,456 WARN L170 areAnnotationChecker]: L1015-3 has no Hoare annotation [2020-07-08 16:26:16,456 WARN L170 areAnnotationChecker]: L1015-3 has no Hoare annotation [2020-07-08 16:26:16,456 WARN L170 areAnnotationChecker]: L1003-1 has no Hoare annotation [2020-07-08 16:26:16,456 WARN L170 areAnnotationChecker]: L995-17 has no Hoare annotation [2020-07-08 16:26:16,456 WARN L170 areAnnotationChecker]: L995-28 has no Hoare annotation [2020-07-08 16:26:16,456 WARN L170 areAnnotationChecker]: L995-28 has no Hoare annotation [2020-07-08 16:26:16,456 WARN L170 areAnnotationChecker]: L995-33 has no Hoare annotation [2020-07-08 16:26:16,457 WARN L170 areAnnotationChecker]: L995-33 has no Hoare annotation [2020-07-08 16:26:16,457 WARN L170 areAnnotationChecker]: L1038-1 has no Hoare annotation [2020-07-08 16:26:16,457 WARN L170 areAnnotationChecker]: L1038-1 has no Hoare annotation [2020-07-08 16:26:16,457 WARN L170 areAnnotationChecker]: L1038-1 has no Hoare annotation [2020-07-08 16:26:16,457 WARN L170 areAnnotationChecker]: L1019 has no Hoare annotation [2020-07-08 16:26:16,457 WARN L170 areAnnotationChecker]: L1003-2 has no Hoare annotation [2020-07-08 16:26:16,457 WARN L170 areAnnotationChecker]: L1038-2 has no Hoare annotation [2020-07-08 16:26:16,457 WARN L170 areAnnotationChecker]: L1040 has no Hoare annotation [2020-07-08 16:26:16,457 WARN L170 areAnnotationChecker]: L1020 has no Hoare annotation [2020-07-08 16:26:16,457 WARN L170 areAnnotationChecker]: L1004 has no Hoare annotation [2020-07-08 16:26:16,458 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-08 16:26:16,458 WARN L170 areAnnotationChecker]: L1040-1 has no Hoare annotation [2020-07-08 16:26:16,458 WARN L170 areAnnotationChecker]: L1020-1 has no Hoare annotation [2020-07-08 16:26:16,458 WARN L170 areAnnotationChecker]: L1004-1 has no Hoare annotation [2020-07-08 16:26:16,458 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-08 16:26:16,458 WARN L170 areAnnotationChecker]: L1040-2 has no Hoare annotation [2020-07-08 16:26:16,458 WARN L170 areAnnotationChecker]: L1020-2 has no Hoare annotation [2020-07-08 16:26:16,458 WARN L170 areAnnotationChecker]: L1005 has no Hoare annotation [2020-07-08 16:26:16,458 WARN L170 areAnnotationChecker]: L1042 has no Hoare annotation [2020-07-08 16:26:16,459 WARN L170 areAnnotationChecker]: L1042 has no Hoare annotation [2020-07-08 16:26:16,459 WARN L170 areAnnotationChecker]: L1021-2 has no Hoare annotation [2020-07-08 16:26:16,459 WARN L170 areAnnotationChecker]: L1021-2 has no Hoare annotation [2020-07-08 16:26:16,459 WARN L170 areAnnotationChecker]: L1021-2 has no Hoare annotation [2020-07-08 16:26:16,459 WARN L170 areAnnotationChecker]: L1005-1 has no Hoare annotation [2020-07-08 16:26:16,459 WARN L170 areAnnotationChecker]: L1044-4 has no Hoare annotation [2020-07-08 16:26:16,459 WARN L170 areAnnotationChecker]: L1044-4 has no Hoare annotation [2020-07-08 16:26:16,460 WARN L170 areAnnotationChecker]: L1044-4 has no Hoare annotation [2020-07-08 16:26:16,460 WARN L170 areAnnotationChecker]: L1042-2 has no Hoare annotation [2020-07-08 16:26:16,460 WARN L170 areAnnotationChecker]: L1032-3 has no Hoare annotation [2020-07-08 16:26:16,460 WARN L170 areAnnotationChecker]: L1032-3 has no Hoare annotation [2020-07-08 16:26:16,460 WARN L170 areAnnotationChecker]: L1032-3 has no Hoare annotation [2020-07-08 16:26:16,460 WARN L170 areAnnotationChecker]: L1023 has no Hoare annotation [2020-07-08 16:26:16,460 WARN L170 areAnnotationChecker]: L1023 has no Hoare annotation [2020-07-08 16:26:16,460 WARN L170 areAnnotationChecker]: L1005-2 has no Hoare annotation [2020-07-08 16:26:16,461 WARN L170 areAnnotationChecker]: L1045-6 has no Hoare annotation [2020-07-08 16:26:16,461 WARN L170 areAnnotationChecker]: L1045-6 has no Hoare annotation [2020-07-08 16:26:16,461 WARN L170 areAnnotationChecker]: L1044-1 has no Hoare annotation [2020-07-08 16:26:16,461 WARN L170 areAnnotationChecker]: L1044-1 has no Hoare annotation [2020-07-08 16:26:16,461 WARN L170 areAnnotationChecker]: L1044-3 has no Hoare annotation [2020-07-08 16:26:16,461 WARN L170 areAnnotationChecker]: L1044-3 has no Hoare annotation [2020-07-08 16:26:16,461 WARN L170 areAnnotationChecker]: L1050 has no Hoare annotation [2020-07-08 16:26:16,461 WARN L170 areAnnotationChecker]: L1032-4 has no Hoare annotation [2020-07-08 16:26:16,462 WARN L170 areAnnotationChecker]: L1032 has no Hoare annotation [2020-07-08 16:26:16,462 WARN L170 areAnnotationChecker]: L1032 has no Hoare annotation [2020-07-08 16:26:16,462 WARN L170 areAnnotationChecker]: L1032-2 has no Hoare annotation [2020-07-08 16:26:16,462 WARN L170 areAnnotationChecker]: L1032-2 has no Hoare annotation [2020-07-08 16:26:16,462 WARN L170 areAnnotationChecker]: L1024 has no Hoare annotation [2020-07-08 16:26:16,462 WARN L170 areAnnotationChecker]: L1026 has no Hoare annotation [2020-07-08 16:26:16,462 WARN L170 areAnnotationChecker]: L1006 has no Hoare annotation [2020-07-08 16:26:16,462 WARN L170 areAnnotationChecker]: L1045 has no Hoare annotation [2020-07-08 16:26:16,463 WARN L170 areAnnotationChecker]: L1045 has no Hoare annotation [2020-07-08 16:26:16,463 WARN L170 areAnnotationChecker]: L1046-6 has no Hoare annotation [2020-07-08 16:26:16,463 WARN L170 areAnnotationChecker]: L1046-6 has no Hoare annotation [2020-07-08 16:26:16,463 WARN L170 areAnnotationChecker]: L1050-1 has no Hoare annotation [2020-07-08 16:26:16,463 WARN L170 areAnnotationChecker]: L1034 has no Hoare annotation [2020-07-08 16:26:16,463 WARN L170 areAnnotationChecker]: L1027-3 has no Hoare annotation [2020-07-08 16:26:16,463 WARN L170 areAnnotationChecker]: L1027-3 has no Hoare annotation [2020-07-08 16:26:16,463 WARN L170 areAnnotationChecker]: L1027-3 has no Hoare annotation [2020-07-08 16:26:16,463 WARN L170 areAnnotationChecker]: L1007-3 has no Hoare annotation [2020-07-08 16:26:16,463 WARN L170 areAnnotationChecker]: L1007-3 has no Hoare annotation [2020-07-08 16:26:16,464 WARN L170 areAnnotationChecker]: L1007-3 has no Hoare annotation [2020-07-08 16:26:16,464 WARN L170 areAnnotationChecker]: L1045-1 has no Hoare annotation [2020-07-08 16:26:16,464 WARN L170 areAnnotationChecker]: L1045-4 has no Hoare annotation [2020-07-08 16:26:16,464 WARN L170 areAnnotationChecker]: L1046 has no Hoare annotation [2020-07-08 16:26:16,464 WARN L170 areAnnotationChecker]: L1046 has no Hoare annotation [2020-07-08 16:26:16,464 WARN L170 areAnnotationChecker]: L1046-7 has no Hoare annotation [2020-07-08 16:26:16,464 WARN L170 areAnnotationChecker]: L1051 has no Hoare annotation [2020-07-08 16:26:16,464 WARN L170 areAnnotationChecker]: L1034-1 has no Hoare annotation [2020-07-08 16:26:16,464 WARN L170 areAnnotationChecker]: L1028-6 has no Hoare annotation [2020-07-08 16:26:16,465 WARN L170 areAnnotationChecker]: L1028-6 has no Hoare annotation [2020-07-08 16:26:16,465 WARN L170 areAnnotationChecker]: L1027 has no Hoare annotation [2020-07-08 16:26:16,465 WARN L170 areAnnotationChecker]: L1027 has no Hoare annotation [2020-07-08 16:26:16,465 WARN L170 areAnnotationChecker]: L1027-2 has no Hoare annotation [2020-07-08 16:26:16,465 WARN L170 areAnnotationChecker]: L1027-2 has no Hoare annotation [2020-07-08 16:26:16,465 WARN L170 areAnnotationChecker]: L1008-3 has no Hoare annotation [2020-07-08 16:26:16,465 WARN L170 areAnnotationChecker]: L1008-3 has no Hoare annotation [2020-07-08 16:26:16,465 WARN L170 areAnnotationChecker]: L1008-3 has no Hoare annotation [2020-07-08 16:26:16,466 WARN L170 areAnnotationChecker]: L1007 has no Hoare annotation [2020-07-08 16:26:16,466 WARN L170 areAnnotationChecker]: L1007 has no Hoare annotation [2020-07-08 16:26:16,466 WARN L170 areAnnotationChecker]: L1007-2 has no Hoare annotation [2020-07-08 16:26:16,466 WARN L170 areAnnotationChecker]: L1007-2 has no Hoare annotation [2020-07-08 16:26:16,466 WARN L170 areAnnotationChecker]: L1045-2 has no Hoare annotation [2020-07-08 16:26:16,466 WARN L170 areAnnotationChecker]: L1045-2 has no Hoare annotation [2020-07-08 16:26:16,466 WARN L170 areAnnotationChecker]: L1045-5 has no Hoare annotation [2020-07-08 16:26:16,467 WARN L170 areAnnotationChecker]: L1045-5 has no Hoare annotation [2020-07-08 16:26:16,467 WARN L170 areAnnotationChecker]: L1046-1 has no Hoare annotation [2020-07-08 16:26:16,467 WARN L170 areAnnotationChecker]: L1046-4 has no Hoare annotation [2020-07-08 16:26:16,467 WARN L170 areAnnotationChecker]: L1047 has no Hoare annotation [2020-07-08 16:26:16,467 WARN L170 areAnnotationChecker]: L1051-1 has no Hoare annotation [2020-07-08 16:26:16,467 WARN L170 areAnnotationChecker]: L1028 has no Hoare annotation [2020-07-08 16:26:16,467 WARN L170 areAnnotationChecker]: L1028 has no Hoare annotation [2020-07-08 16:26:16,467 WARN L170 areAnnotationChecker]: L1029-6 has no Hoare annotation [2020-07-08 16:26:16,468 WARN L170 areAnnotationChecker]: L1029-6 has no Hoare annotation [2020-07-08 16:26:16,468 WARN L170 areAnnotationChecker]: L1008-4 has no Hoare annotation [2020-07-08 16:26:16,468 WARN L170 areAnnotationChecker]: L1008 has no Hoare annotation [2020-07-08 16:26:16,468 WARN L170 areAnnotationChecker]: L1008 has no Hoare annotation [2020-07-08 16:26:16,468 WARN L170 areAnnotationChecker]: L1008-2 has no Hoare annotation [2020-07-08 16:26:16,468 WARN L170 areAnnotationChecker]: L1008-2 has no Hoare annotation [2020-07-08 16:26:16,468 WARN L170 areAnnotationChecker]: L1046-2 has no Hoare annotation [2020-07-08 16:26:16,468 WARN L170 areAnnotationChecker]: L1046-2 has no Hoare annotation [2020-07-08 16:26:16,469 WARN L170 areAnnotationChecker]: L1046-5 has no Hoare annotation [2020-07-08 16:26:16,469 WARN L170 areAnnotationChecker]: L1046-5 has no Hoare annotation [2020-07-08 16:26:16,469 WARN L170 areAnnotationChecker]: L1028-1 has no Hoare annotation [2020-07-08 16:26:16,469 WARN L170 areAnnotationChecker]: L1028-4 has no Hoare annotation [2020-07-08 16:26:16,469 WARN L170 areAnnotationChecker]: L1029 has no Hoare annotation [2020-07-08 16:26:16,469 WARN L170 areAnnotationChecker]: L1029 has no Hoare annotation [2020-07-08 16:26:16,469 WARN L170 areAnnotationChecker]: L1029-7 has no Hoare annotation [2020-07-08 16:26:16,469 WARN L170 areAnnotationChecker]: L1008-5 has no Hoare annotation [2020-07-08 16:26:16,469 WARN L170 areAnnotationChecker]: L1008-5 has no Hoare annotation [2020-07-08 16:26:16,469 WARN L170 areAnnotationChecker]: L1028-2 has no Hoare annotation [2020-07-08 16:26:16,470 WARN L170 areAnnotationChecker]: L1028-2 has no Hoare annotation [2020-07-08 16:26:16,470 WARN L170 areAnnotationChecker]: L1028-5 has no Hoare annotation [2020-07-08 16:26:16,470 WARN L170 areAnnotationChecker]: L1028-5 has no Hoare annotation [2020-07-08 16:26:16,470 WARN L170 areAnnotationChecker]: L1029-1 has no Hoare annotation [2020-07-08 16:26:16,470 WARN L170 areAnnotationChecker]: L1029-4 has no Hoare annotation [2020-07-08 16:26:16,470 WARN L170 areAnnotationChecker]: L1030 has no Hoare annotation [2020-07-08 16:26:16,470 WARN L170 areAnnotationChecker]: L1008-6 has no Hoare annotation [2020-07-08 16:26:16,470 WARN L170 areAnnotationChecker]: L1008-9 has no Hoare annotation [2020-07-08 16:26:16,470 WARN L170 areAnnotationChecker]: L1029-2 has no Hoare annotation [2020-07-08 16:26:16,470 WARN L170 areAnnotationChecker]: L1029-2 has no Hoare annotation [2020-07-08 16:26:16,471 WARN L170 areAnnotationChecker]: L1029-5 has no Hoare annotation [2020-07-08 16:26:16,471 WARN L170 areAnnotationChecker]: L1029-5 has no Hoare annotation [2020-07-08 16:26:16,471 WARN L170 areAnnotationChecker]: L1030-1 has no Hoare annotation [2020-07-08 16:26:16,471 WARN L170 areAnnotationChecker]: L1008-7 has no Hoare annotation [2020-07-08 16:26:16,471 WARN L170 areAnnotationChecker]: L1008-10 has no Hoare annotation [2020-07-08 16:26:16,471 WARN L170 areAnnotationChecker]: L1008-34 has no Hoare annotation [2020-07-08 16:26:16,471 WARN L170 areAnnotationChecker]: L1008-34 has no Hoare annotation [2020-07-08 16:26:16,471 WARN L170 areAnnotationChecker]: L1008-11 has no Hoare annotation [2020-07-08 16:26:16,471 WARN L170 areAnnotationChecker]: L1008-19 has no Hoare annotation [2020-07-08 16:26:16,472 WARN L170 areAnnotationChecker]: L1008-12 has no Hoare annotation [2020-07-08 16:26:16,472 WARN L170 areAnnotationChecker]: L1008-20 has no Hoare annotation [2020-07-08 16:26:16,472 WARN L170 areAnnotationChecker]: L1008-20 has no Hoare annotation [2020-07-08 16:26:16,472 WARN L170 areAnnotationChecker]: L1008-13 has no Hoare annotation [2020-07-08 16:26:16,472 WARN L170 areAnnotationChecker]: L1008-24 has no Hoare annotation [2020-07-08 16:26:16,472 WARN L170 areAnnotationChecker]: L1008-24 has no Hoare annotation [2020-07-08 16:26:16,472 WARN L170 areAnnotationChecker]: L1008-22 has no Hoare annotation [2020-07-08 16:26:16,472 WARN L170 areAnnotationChecker]: L1008-14 has no Hoare annotation [2020-07-08 16:26:16,472 WARN L170 areAnnotationChecker]: L1008-25 has no Hoare annotation [2020-07-08 16:26:16,472 WARN L170 areAnnotationChecker]: L1008-30 has no Hoare annotation [2020-07-08 16:26:16,472 WARN L170 areAnnotationChecker]: L1008-23 has no Hoare annotation [2020-07-08 16:26:16,473 WARN L170 areAnnotationChecker]: L1008-15 has no Hoare annotation [2020-07-08 16:26:16,473 WARN L170 areAnnotationChecker]: L1008-26 has no Hoare annotation [2020-07-08 16:26:16,473 WARN L170 areAnnotationChecker]: L1008-31 has no Hoare annotation [2020-07-08 16:26:16,473 WARN L170 areAnnotationChecker]: L1008-16 has no Hoare annotation [2020-07-08 16:26:16,473 WARN L170 areAnnotationChecker]: L1008-27 has no Hoare annotation [2020-07-08 16:26:16,473 WARN L170 areAnnotationChecker]: L1008-32 has no Hoare annotation [2020-07-08 16:26:16,473 WARN L170 areAnnotationChecker]: L1008-17 has no Hoare annotation [2020-07-08 16:26:16,473 WARN L170 areAnnotationChecker]: L1008-28 has no Hoare annotation [2020-07-08 16:26:16,474 WARN L170 areAnnotationChecker]: L1008-28 has no Hoare annotation [2020-07-08 16:26:16,474 WARN L170 areAnnotationChecker]: L1008-33 has no Hoare annotation [2020-07-08 16:26:16,474 WARN L170 areAnnotationChecker]: L1008-33 has no Hoare annotation [2020-07-08 16:26:16,474 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-08 16:26:16,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 04:26:16 BoogieIcfgContainer [2020-07-08 16:26:16,478 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 16:26:16,480 INFO L168 Benchmark]: Toolchain (without parser) took 58219.85 ms. Allocated memory was 142.1 MB in the beginning and 582.0 MB in the end (delta: 439.9 MB). Free memory was 99.2 MB in the beginning and 138.0 MB in the end (delta: -38.9 MB). Peak memory consumption was 401.0 MB. Max. memory is 7.1 GB. [2020-07-08 16:26:16,481 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 142.1 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-08 16:26:16,482 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.03 ms. Allocated memory was 142.1 MB in the beginning and 200.3 MB in the end (delta: 58.2 MB). Free memory was 98.9 MB in the beginning and 166.4 MB in the end (delta: -67.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2020-07-08 16:26:16,482 INFO L168 Benchmark]: Boogie Preprocessor took 93.36 ms. Allocated memory is still 200.3 MB. Free memory was 166.4 MB in the beginning and 161.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-07-08 16:26:16,483 INFO L168 Benchmark]: RCFGBuilder took 1057.77 ms. Allocated memory was 200.3 MB in the beginning and 228.1 MB in the end (delta: 27.8 MB). Free memory was 161.8 MB in the beginning and 189.7 MB in the end (delta: -27.9 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. [2020-07-08 16:26:16,483 INFO L168 Benchmark]: TraceAbstraction took 56419.56 ms. Allocated memory was 228.1 MB in the beginning and 582.0 MB in the end (delta: 353.9 MB). Free memory was 189.7 MB in the beginning and 138.0 MB in the end (delta: 51.7 MB). Peak memory consumption was 405.6 MB. Max. memory is 7.1 GB. [2020-07-08 16:26:16,486 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 0.32 ms. Allocated memory is still 142.1 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 640.03 ms. Allocated memory was 142.1 MB in the beginning and 200.3 MB in the end (delta: 58.2 MB). Free memory was 98.9 MB in the beginning and 166.4 MB in the end (delta: -67.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.36 ms. Allocated memory is still 200.3 MB. Free memory was 166.4 MB in the beginning and 161.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1057.77 ms. Allocated memory was 200.3 MB in the beginning and 228.1 MB in the end (delta: 27.8 MB). Free memory was 161.8 MB in the beginning and 189.7 MB in the end (delta: -27.9 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 56419.56 ms. Allocated memory was 228.1 MB in the beginning and 582.0 MB in the end (delta: 353.9 MB). Free memory was 189.7 MB in the beginning and 138.0 MB in the end (delta: 51.7 MB). Peak memory consumption was 405.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1029]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L992] SLL* list = malloc(sizeof(SLL)); [L993] list->next = ((void*)0) [L994] list->prev = ((void*)0) [L995] COND FALSE !(!(list != ((void*)0))) [L995] COND FALSE !(__VERIFIER_nondet_int()) [L995] list->inner = malloc(sizeof(SLL)) [L995] EXPR list->inner [L995] list->inner->next = ((void*)0) [L995] EXPR list->inner [L995] list->inner->inner = ((void*)0) [L995] EXPR list->inner [L995] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) [L995] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L997] SLL* end = list; [L1000] COND FALSE !(__VERIFIER_nondet_int()) [L1011] end = ((void*)0) [L1012] end = list [L1015] COND FALSE !(!(((void*)0) != end)) [L1017] COND TRUE ((void*)0) != end [L1019] int len = 0; [L1020] EXPR end->inner [L1020] SLL* inner = end->inner; [L1021] COND TRUE ((void*)0) != inner [L1023] COND TRUE len == 0 [L1024] len = 1 [L1027] COND FALSE !(!(((void*)0) != inner)) [L1028] EXPR inner->inner [L1028] COND FALSE !(!(((void*)0) == inner->inner)) [L1029] EXPR inner->next [L1029] COND TRUE !(((void*)0) != inner->next) [L1029] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 171 locations, 13 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 56.3s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 38.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1954 SDtfs, 3773 SDslu, 5860 SDs, 0 SdLazy, 4150 SolverSat, 117 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 159 GetRequests, 37 SyntacticMatches, 4 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=249occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 928 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...