java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/memsafety/test-0019_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 15:40:35,340 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 15:40:35,341 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 15:40:35,352 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 15:40:35,352 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 15:40:35,353 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 15:40:35,354 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 15:40:35,355 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 15:40:35,357 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 15:40:35,357 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 15:40:35,358 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 15:40:35,358 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 15:40:35,359 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 15:40:35,360 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 15:40:35,361 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 15:40:35,362 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 15:40:35,364 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 15:40:35,365 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 15:40:35,366 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 15:40:35,367 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 15:40:35,369 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-11 15:40:35,373 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-04-11 15:40:35,393 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 15:40:35,393 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 15:40:35,394 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 15:40:35,394 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 15:40:35,394 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 15:40:35,395 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 15:40:35,395 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 15:40:35,395 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 15:40:35,395 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 15:40:35,395 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 15:40:35,395 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 15:40:35,395 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 15:40:35,395 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 15:40:35,396 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 15:40:35,396 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 15:40:35,396 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 15:40:35,396 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 15:40:35,396 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 15:40:35,396 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 15:40:35,396 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 15:40:35,397 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 15:40:35,397 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 15:40:35,397 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 15:40:35,397 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 15:40:35,423 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 15:40:35,431 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 15:40:35,433 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 15:40:35,434 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 15:40:35,435 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 15:40:35,435 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,799 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG1aa485413 [2018-04-11 15:40:35,928 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 15:40:35,928 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 15:40:35,929 INFO L168 CDTParser]: Scanning test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,935 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 15:40:35,935 INFO L215 ultiparseSymbolTable]: [2018-04-11 15:40:35,935 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 15:40:35,935 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data ('free_data') in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,935 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_data ('alloc_data') in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,935 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,936 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 15:40:35,936 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____u_int in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,936 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____useconds_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,936 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__loff_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,936 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__u_int8_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,936 INFO L230 ultiparseSymbolTable]: Global variable declaration of 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15:40:35,938 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____ssize_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,938 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____off_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,938 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____quad_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,938 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____pthread_list_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,938 INFO L230 ultiparseSymbolTable]: Global variable declaration of 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15:40:35,940 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__int16_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,940 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____dev_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,940 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____fsblkcnt_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,941 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__mode_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,941 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____u_char in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,941 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____rlim_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,941 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____caddr_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,941 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__fd_set in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,941 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__pthread_mutex_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,941 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__size_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,941 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__caddr_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,941 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__blkcnt_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,941 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____mode_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,942 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__u_char in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,942 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__sigset_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,942 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__pthread_key_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,942 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__blksize_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,942 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____intptr_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,942 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____uint32_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,942 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____int16_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,942 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____u_long in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,942 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__div_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,942 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__ldiv_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,942 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__gid_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,942 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____fsfilcnt64_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,943 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__daddr_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,943 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__clock_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,943 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__u_int64_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,943 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__u_short in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,943 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__register_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,943 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__ulong in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,943 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__int8_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,943 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__pthread_barrierattr_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,943 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____fsid_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,943 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__ino_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,943 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__pid_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,943 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____swblk_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,943 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__u_long in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,943 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__ushort in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,943 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____fsfilcnt_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,944 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____WAIT_STATUS in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,944 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__suseconds_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,944 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____loff_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,944 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____u_short in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,944 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__u_quad_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,944 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__int64_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,944 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____time_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,944 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____qaddr_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,944 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____int8_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,944 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____daddr_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,944 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____blksize_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,944 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____uint16_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,944 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__fsid_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,944 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i____clock_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,944 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__pthread_condattr_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:35,958 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG1aa485413 [2018-04-11 15:40:35,960 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 15:40:35,961 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 15:40:35,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 15:40:35,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 15:40:35,965 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 15:40:35,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 03:40:35" (1/1) ... [2018-04-11 15:40:35,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79d2e2ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:40:35, skipping insertion in model container [2018-04-11 15:40:35,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 03:40:35" (1/1) ... [2018-04-11 15:40:35,978 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 15:40:35,999 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 15:40:36,113 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 15:40:36,146 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 15:40:36,152 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 111 non ball SCCs. Number of states in SCCs 111. [2018-04-11 15:40:36,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:40:36 WrapperNode [2018-04-11 15:40:36,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 15:40:36,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 15:40:36,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 15:40:36,181 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 15:40:36,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:40:36" (1/1) ... [2018-04-11 15:40:36,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:40:36" (1/1) ... [2018-04-11 15:40:36,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:40:36" (1/1) ... [2018-04-11 15:40:36,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:40:36" (1/1) ... [2018-04-11 15:40:36,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:40:36" (1/1) ... [2018-04-11 15:40:36,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:40:36" (1/1) ... [2018-04-11 15:40:36,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:40:36" (1/1) ... [2018-04-11 15:40:36,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 15:40:36,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 15:40:36,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 15:40:36,215 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 15:40:36,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:40:36" (1/1) ... No working directory specified, using /home/ultimate/work/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 [2018-04-11 15:40:36,306 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 15:40:36,306 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 15:40:36,306 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_data [2018-04-11 15:40:36,306 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data [2018-04-11 15:40:36,306 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 15:40:36,307 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-11 15:40:36,307 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 15:40:36,307 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 15:40:36,307 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 15:40:36,307 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 15:40:36,307 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 15:40:36,307 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 15:40:36,307 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 15:40:36,307 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 15:40:36,307 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 15:40:36,307 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 15:40:36,308 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 15:40:36,308 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 15:40:36,308 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 15:40:36,308 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 15:40:36,308 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 15:40:36,308 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 15:40:36,308 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 15:40:36,308 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 15:40:36,308 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 15:40:36,309 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 15:40:36,309 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 15:40:36,309 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 15:40:36,309 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 15:40:36,309 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 15:40:36,309 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 15:40:36,309 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 15:40:36,309 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 15:40:36,309 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 15:40:36,310 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 15:40:36,310 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 15:40:36,310 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 15:40:36,310 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 15:40:36,310 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 15:40:36,310 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 15:40:36,310 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 15:40:36,310 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 15:40:36,310 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 15:40:36,310 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 15:40:36,311 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 15:40:36,311 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 15:40:36,311 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 15:40:36,311 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 15:40:36,311 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 15:40:36,311 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 15:40:36,311 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 15:40:36,311 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 15:40:36,311 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 15:40:36,311 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 15:40:36,311 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 15:40:36,312 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 15:40:36,312 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 15:40:36,312 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 15:40:36,312 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 15:40:36,312 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 15:40:36,312 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 15:40:36,312 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 15:40:36,312 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 15:40:36,312 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 15:40:36,312 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 15:40:36,313 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 15:40:36,313 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 15:40:36,313 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 15:40:36,313 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 15:40:36,313 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 15:40:36,313 INFO L128 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-04-11 15:40:36,313 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 15:40:36,313 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 15:40:36,313 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 15:40:36,313 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 15:40:36,313 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 15:40:36,314 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 15:40:36,314 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 15:40:36,314 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 15:40:36,314 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 15:40:36,314 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 15:40:36,314 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 15:40:36,314 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 15:40:36,314 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 15:40:36,314 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 15:40:36,314 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 15:40:36,314 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 15:40:36,314 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 15:40:36,314 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 15:40:36,314 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 15:40:36,314 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 15:40:36,314 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 15:40:36,314 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 15:40:36,315 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 15:40:36,315 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 15:40:36,315 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 15:40:36,315 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 15:40:36,315 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 15:40:36,315 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 15:40:36,315 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 15:40:36,315 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 15:40:36,315 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 15:40:36,315 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 15:40:36,315 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 15:40:36,315 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 15:40:36,316 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 15:40:36,316 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 15:40:36,316 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_data [2018-04-11 15:40:36,316 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 15:40:36,316 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-04-11 15:40:36,316 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data [2018-04-11 15:40:36,316 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 15:40:36,316 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 15:40:36,316 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-04-11 15:40:36,317 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 15:40:36,317 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 15:40:36,562 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 15:40:36,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 03:40:36 BoogieIcfgContainer [2018-04-11 15:40:36,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 15:40:36,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 15:40:36,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 15:40:36,565 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 15:40:36,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 03:40:35" (1/3) ... [2018-04-11 15:40:36,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133f8f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 03:40:36, skipping insertion in model container [2018-04-11 15:40:36,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:40:36" (2/3) ... [2018-04-11 15:40:36,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133f8f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 03:40:36, skipping insertion in model container [2018-04-11 15:40:36,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 03:40:36" (3/3) ... [2018-04-11 15:40:36,566 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0019_true-valid-memsafety_true-termination.i [2018-04-11 15:40:36,572 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 15:40:36,577 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-04-11 15:40:36,599 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 15:40:36,600 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 15:40:36,600 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 15:40:36,600 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 15:40:36,600 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 15:40:36,600 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 15:40:36,600 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 15:40:36,600 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 15:40:36,600 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 15:40:36,601 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 15:40:36,608 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-04-11 15:40:36,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-04-11 15:40:36,616 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:40:36,617 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:40:36,617 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr0RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr3RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr1RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr2RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr1AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr2AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr3AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr0AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:40:36,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1158211215, now seen corresponding path program 1 times [2018-04-11 15:40:36,621 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:40:36,621 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:40:36,650 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:40:36,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:40:36,651 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:40:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:40:36,694 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:40:36,705 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:40:36,706 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:40:36,706 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:40:36,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:40:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:40:36,735 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:40:36,770 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 15:40:36,771 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:36,776 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:36,776 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 15:40:36,800 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-11 15:40:36,800 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:36,804 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 15:40:36,805 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-04-11 15:40:36,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:40:36,812 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:40:36,812 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 15:40:36,813 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 15:40:36,821 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 15:40:36,821 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 15:40:36,822 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 5 states. [2018-04-11 15:40:36,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:40:36,897 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-04-11 15:40:36,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 15:40:36,898 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-04-11 15:40:36,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:40:36,904 INFO L225 Difference]: With dead ends: 43 [2018-04-11 15:40:36,905 INFO L226 Difference]: Without dead ends: 40 [2018-04-11 15:40:36,906 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-11 15:40:36,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-04-11 15:40:36,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-04-11 15:40:36,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-04-11 15:40:36,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2018-04-11 15:40:36,930 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 10 [2018-04-11 15:40:36,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:40:36,930 INFO L459 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2018-04-11 15:40:36,930 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 15:40:36,930 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2018-04-11 15:40:36,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-04-11 15:40:36,931 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:40:36,931 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:40:36,931 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr0RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr3RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr1RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr2RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr1AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr2AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr3AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr0AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:40:36,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1158211216, now seen corresponding path program 1 times [2018-04-11 15:40:36,931 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:40:36,931 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:40:36,932 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:40:36,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:40:36,932 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:40:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:40:36,943 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:40:36,948 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:40:36,948 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:40:36,948 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:40:36,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:40:36,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:40:36,971 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:40:36,975 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 15:40:36,975 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:36,983 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 15:40:36,983 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:36,989 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:36,989 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 15:40:37,015 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:40:37,016 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:40:37,017 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-04-11 15:40:37,017 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:37,028 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:40:37,029 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:40:37,030 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 15:40:37,030 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:37,035 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 15:40:37,036 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:14 [2018-04-11 15:40:37,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:40:37,049 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:40:37,049 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 15:40:37,050 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 15:40:37,050 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 15:40:37,050 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 15:40:37,050 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 6 states. [2018-04-11 15:40:37,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:40:37,168 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2018-04-11 15:40:37,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 15:40:37,169 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-04-11 15:40:37,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:40:37,169 INFO L225 Difference]: With dead ends: 36 [2018-04-11 15:40:37,169 INFO L226 Difference]: Without dead ends: 36 [2018-04-11 15:40:37,170 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-04-11 15:40:37,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-04-11 15:40:37,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-04-11 15:40:37,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-04-11 15:40:37,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2018-04-11 15:40:37,174 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 10 [2018-04-11 15:40:37,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:40:37,174 INFO L459 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2018-04-11 15:40:37,174 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 15:40:37,174 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2018-04-11 15:40:37,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-11 15:40:37,175 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:40:37,175 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:40:37,175 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr0RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr3RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr1RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr2RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr1AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr2AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr3AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr0AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:40:37,175 INFO L82 PathProgramCache]: Analyzing trace with hash 716751171, now seen corresponding path program 1 times [2018-04-11 15:40:37,175 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:40:37,175 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:40:37,176 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:40:37,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:40:37,176 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:40:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:40:37,192 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:40:37,195 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:40:37,196 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:40:37,196 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:40:37,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:40:37,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:40:37,238 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:40:37,256 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-11 15:40:37,257 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 15:40:37,258 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:37,267 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:37,271 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:37,272 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:21, output treesize:17 [2018-04-11 15:40:37,311 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-04-11 15:40:37,314 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:40:37,316 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-04-11 15:40:37,316 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:37,320 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:37,325 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 15:40:37,325 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:14 [2018-04-11 15:40:37,368 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-11 15:40:37,369 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 15:40:37,370 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-04-11 15:40:37,370 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:37,372 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:37,380 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:37,381 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:24, output treesize:3 [2018-04-11 15:40:37,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:40:37,400 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:40:37,400 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-04-11 15:40:37,400 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-11 15:40:37,401 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-11 15:40:37,401 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-04-11 15:40:37,401 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 11 states. [2018-04-11 15:40:37,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:40:37,510 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-04-11 15:40:37,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-11 15:40:37,511 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 20 [2018-04-11 15:40:37,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:40:37,511 INFO L225 Difference]: With dead ends: 35 [2018-04-11 15:40:37,511 INFO L226 Difference]: Without dead ends: 35 [2018-04-11 15:40:37,512 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-04-11 15:40:37,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-04-11 15:40:37,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-04-11 15:40:37,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-04-11 15:40:37,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-04-11 15:40:37,515 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 20 [2018-04-11 15:40:37,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:40:37,515 INFO L459 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-04-11 15:40:37,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-11 15:40:37,515 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-04-11 15:40:37,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-11 15:40:37,516 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:40:37,516 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:40:37,516 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr0RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr3RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr1RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr2RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr1AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr2AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr3AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr0AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:40:37,516 INFO L82 PathProgramCache]: Analyzing trace with hash 744449885, now seen corresponding path program 1 times [2018-04-11 15:40:37,516 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:40:37,516 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:40:37,517 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:40:37,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:40:37,517 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:40:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:40:37,531 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:40:37,534 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:40:37,534 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:40:37,534 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:40:37,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:40:37,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:40:37,583 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:40:37,593 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 15:40:37,594 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:37,597 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:37,597 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-04-11 15:40:37,606 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-11 15:40:37,608 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 15:40:37,608 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:37,609 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:37,615 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:37,615 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2018-04-11 15:40:37,625 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:40:37,626 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:40:37,627 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 36 [2018-04-11 15:40:37,627 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:37,639 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:37,639 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:32 [2018-04-11 15:40:37,661 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2018-04-11 15:40:37,664 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:40:37,664 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2018-04-11 15:40:37,664 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:37,669 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:37,675 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 15:40:37,675 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:42, output treesize:41 [2018-04-11 15:40:37,698 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 32 [2018-04-11 15:40:37,700 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 15:40:37,701 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2018-04-11 15:40:37,702 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 15:40:37,707 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 15:40:37,737 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 15:40:37,737 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:51, output treesize:15 [2018-04-11 15:40:37,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:40:37,775 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:40:37,775 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-04-11 15:40:37,775 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 15:40:37,775 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 15:40:37,775 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-04-11 15:40:37,775 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 12 states. [2018-04-11 15:40:38,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:40:38,016 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-04-11 15:40:38,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 15:40:38,017 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2018-04-11 15:40:38,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:40:38,017 INFO L225 Difference]: With dead ends: 37 [2018-04-11 15:40:38,017 INFO L226 Difference]: Without dead ends: 37 [2018-04-11 15:40:38,017 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2018-04-11 15:40:38,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-04-11 15:40:38,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2018-04-11 15:40:38,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-04-11 15:40:38,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-04-11 15:40:38,019 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 21 [2018-04-11 15:40:38,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:40:38,020 INFO L459 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-04-11 15:40:38,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 15:40:38,020 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-04-11 15:40:38,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 15:40:38,020 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:40:38,020 INFO L355 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] [2018-04-11 15:40:38,020 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr0RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr3RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr1RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr2RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr1AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr2AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr3AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr0AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:40:38,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1843196865, now seen corresponding path program 1 times [2018-04-11 15:40:38,021 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:40:38,021 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:40:38,021 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:40:38,021 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:40:38,021 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:40:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:40:38,039 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:40:38,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:40:38,168 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:40:38,168 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-04-11 15:40:38,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 15:40:38,168 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 15:40:38,168 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-04-11 15:40:38,169 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 10 states. [2018-04-11 15:40:38,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:40:38,232 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2018-04-11 15:40:38,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-11 15:40:38,232 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2018-04-11 15:40:38,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:40:38,233 INFO L225 Difference]: With dead ends: 33 [2018-04-11 15:40:38,233 INFO L226 Difference]: Without dead ends: 33 [2018-04-11 15:40:38,233 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-04-11 15:40:38,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-04-11 15:40:38,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-04-11 15:40:38,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-04-11 15:40:38,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2018-04-11 15:40:38,235 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 23 [2018-04-11 15:40:38,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:40:38,235 INFO L459 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2018-04-11 15:40:38,235 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 15:40:38,235 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2018-04-11 15:40:38,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-04-11 15:40:38,235 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:40:38,236 INFO L355 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] [2018-04-11 15:40:38,236 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr0RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr3RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr1RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr2RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr1AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr2AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr3AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr0AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:40:38,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1304527898, now seen corresponding path program 1 times [2018-04-11 15:40:38,236 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:40:38,236 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:40:38,236 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:40:38,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:40:38,236 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:40:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:40:38,244 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:40:38,246 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:40:38,246 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:40:38,246 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:40:38,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:40:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:40:38,279 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:40:38,297 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 15:40:38,297 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:38,300 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:38,300 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-04-11 15:40:38,307 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 15:40:38,308 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 15:40:38,309 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:38,310 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:38,312 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:38,312 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2018-04-11 15:40:38,323 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-04-11 15:40:38,324 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 5 [2018-04-11 15:40:38,324 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:38,325 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:38,326 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:38,326 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:5 [2018-04-11 15:40:38,366 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:40:38,366 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 25 [2018-04-11 15:40:38,366 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:38,378 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:40:38,382 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 19 [2018-04-11 15:40:38,382 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 15:40:38,411 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-04-11 15:40:38,411 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:33, output treesize:37 [2018-04-11 15:40:38,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:40:38,454 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:40:38,454 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-04-11 15:40:38,454 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-11 15:40:38,455 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-11 15:40:38,455 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2018-04-11 15:40:38,455 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand 13 states. [2018-04-11 15:40:38,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:40:38,595 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-04-11 15:40:38,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-11 15:40:38,596 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 24 [2018-04-11 15:40:38,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:40:38,597 INFO L225 Difference]: With dead ends: 35 [2018-04-11 15:40:38,597 INFO L226 Difference]: Without dead ends: 35 [2018-04-11 15:40:38,597 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2018-04-11 15:40:38,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-04-11 15:40:38,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2018-04-11 15:40:38,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-04-11 15:40:38,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-04-11 15:40:38,600 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 24 [2018-04-11 15:40:38,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:40:38,600 INFO L459 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-04-11 15:40:38,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-11 15:40:38,600 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-04-11 15:40:38,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-11 15:40:38,600 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:40:38,601 INFO L355 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] [2018-04-11 15:40:38,601 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr0RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr3RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr1RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr2RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr1AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr2AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr3AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr0AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:40:38,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1891964165, now seen corresponding path program 1 times [2018-04-11 15:40:38,601 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:40:38,601 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:40:38,601 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:40:38,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:40:38,602 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:40:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:40:38,611 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:40:38,618 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:40:38,618 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:40:38,619 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:40:38,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:40:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:40:38,644 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:40:38,656 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:40:38,656 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2018-04-11 15:40:38,656 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:38,661 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:38,661 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:12 [2018-04-11 15:40:38,673 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-11 15:40:38,675 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 15:40:38,675 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:38,677 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:38,685 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:38,685 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2018-04-11 15:40:38,695 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:40:38,698 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:40:38,703 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2018-04-11 15:40:38,703 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:38,714 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:38,714 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:18 [2018-04-11 15:40:38,724 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2018-04-11 15:40:38,726 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:40:38,726 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-11 15:40:38,727 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:38,729 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:38,733 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 15:40:38,733 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:28, output treesize:21 [2018-04-11 15:40:38,763 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-04-11 15:40:38,767 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:40:38,767 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 15:40:38,767 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 15:40:38,768 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2018-04-11 15:40:38,768 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:38,771 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:38,774 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:38,774 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:35, output treesize:4 [2018-04-11 15:40:38,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:40:38,798 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:40:38,798 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-04-11 15:40:38,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-11 15:40:38,799 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-11 15:40:38,799 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-04-11 15:40:38,799 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 13 states. [2018-04-11 15:40:38,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:40:38,967 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2018-04-11 15:40:38,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 15:40:38,967 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2018-04-11 15:40:38,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:40:38,968 INFO L225 Difference]: With dead ends: 34 [2018-04-11 15:40:38,968 INFO L226 Difference]: Without dead ends: 32 [2018-04-11 15:40:38,968 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2018-04-11 15:40:38,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-04-11 15:40:38,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-04-11 15:40:38,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-04-11 15:40:38,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 31 transitions. [2018-04-11 15:40:38,971 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 31 transitions. Word has length 25 [2018-04-11 15:40:38,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:40:38,971 INFO L459 AbstractCegarLoop]: Abstraction has 32 states and 31 transitions. [2018-04-11 15:40:38,971 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-11 15:40:38,971 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2018-04-11 15:40:38,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-11 15:40:38,972 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:40:38,972 INFO L355 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] [2018-04-11 15:40:38,972 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr0RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr3RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr1RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_dataErr2RequiresViolation, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr1AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr2AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr3AssertViolationMEMORY_FREE, __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_dataErr0AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:40:38,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1700716363, now seen corresponding path program 1 times [2018-04-11 15:40:38,972 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:40:38,972 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:40:38,973 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:40:38,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:40:38,973 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:40:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:40:38,983 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:40:38,988 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:40:38,988 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:40:38,988 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:40:38,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:40:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:40:39,018 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:40:39,045 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-11 15:40:39,047 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 15:40:39,047 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:39,048 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:39,055 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:39,055 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:29 [2018-04-11 15:40:39,082 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 39 [2018-04-11 15:40:39,085 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:40:39,085 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:40:39,086 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 58 [2018-04-11 15:40:39,087 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:39,094 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:39,101 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 15:40:39,101 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:54, output treesize:53 [2018-04-11 15:40:39,167 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 56 [2018-04-11 15:40:39,170 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:40:39,170 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:40:39,170 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 15:40:39,171 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 15:40:39,171 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:40:39,172 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 54 [2018-04-11 15:40:39,172 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:40:39,180 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:39,186 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:40:39,186 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:81, output treesize:37 [2018-04-11 15:40:39,342 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~mem3.base| Int) (|main_#t~mem2.base| Int) (|main_~#data~0.base| Int)) (let ((.cse1 (store |c_old(#valid)| |main_~#data~0.base| 1))) (let ((.cse0 (store .cse1 |main_#t~mem2.base| 1))) (and (not (= |main_#t~mem2.base| |main_#t~mem3.base|)) (= 0 (select .cse0 |main_#t~mem3.base|)) (= 0 (select .cse1 |main_#t~mem2.base|)) (= |c_#valid| (store (store (store (store .cse0 |main_#t~mem3.base| 1) |main_#t~mem2.base| 0) |main_#t~mem3.base| 0) |main_~#data~0.base| 0)) (= (select |c_old(#valid)| |main_~#data~0.base|) 0))))) is different from true [2018-04-11 15:40:39,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:40:39,347 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:40:39,347 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2018-04-11 15:40:39,347 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 15:40:39,348 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 15:40:39,348 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=4, NotChecked=34, Total=380 [2018-04-11 15:40:39,348 INFO L87 Difference]: Start difference. First operand 32 states and 31 transitions. Second operand 20 states. [2018-04-11 15:40:39,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:40:39,673 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2018-04-11 15:40:39,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-11 15:40:39,673 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 31 [2018-04-11 15:40:39,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:40:39,673 INFO L225 Difference]: With dead ends: 31 [2018-04-11 15:40:39,673 INFO L226 Difference]: Without dead ends: 0 [2018-04-11 15:40:39,674 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=528, Unknown=5, NotChecked=46, Total=650 [2018-04-11 15:40:39,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-11 15:40:39,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-11 15:40:39,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-11 15:40:39,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-11 15:40:39,674 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-04-11 15:40:39,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:40:39,674 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-11 15:40:39,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 15:40:39,674 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-11 15:40:39,674 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-11 15:40:39,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 03:40:39 BoogieIcfgContainer [2018-04-11 15:40:39,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 15:40:39,678 INFO L168 Benchmark]: Toolchain (without parser) took 3716.79 ms. Allocated memory was 402.1 MB in the beginning and 644.9 MB in the end (delta: 242.7 MB). Free memory was 334.8 MB in the beginning and 555.2 MB in the end (delta: -220.5 MB). Peak memory consumption was 22.3 MB. Max. memory is 5.3 GB. [2018-04-11 15:40:39,679 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 402.1 MB. Free memory is still 361.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 15:40:39,679 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.55 ms. Allocated memory is still 402.1 MB. Free memory was 332.9 MB in the beginning and 310.3 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 5.3 GB. [2018-04-11 15:40:39,679 INFO L168 Benchmark]: Boogie Preprocessor took 33.63 ms. Allocated memory is still 402.1 MB. Free memory was 310.3 MB in the beginning and 307.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-11 15:40:39,679 INFO L168 Benchmark]: RCFGBuilder took 347.78 ms. Allocated memory was 402.1 MB in the beginning and 590.3 MB in the end (delta: 188.2 MB). Free memory was 307.6 MB in the beginning and 528.4 MB in the end (delta: -220.8 MB). Peak memory consumption was 24.3 MB. Max. memory is 5.3 GB. [2018-04-11 15:40:39,680 INFO L168 Benchmark]: TraceAbstraction took 3114.37 ms. Allocated memory was 590.3 MB in the beginning and 644.9 MB in the end (delta: 54.5 MB). Free memory was 528.4 MB in the beginning and 555.2 MB in the end (delta: -26.9 MB). Peak memory consumption was 27.7 MB. Max. memory is 5.3 GB. [2018-04-11 15:40:39,681 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 402.1 MB. Free memory is still 361.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 218.55 ms. Allocated memory is still 402.1 MB. Free memory was 332.9 MB in the beginning and 310.3 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 33.63 ms. Allocated memory is still 402.1 MB. Free memory was 310.3 MB in the beginning and 307.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 347.78 ms. Allocated memory was 402.1 MB in the beginning and 590.3 MB in the end (delta: 188.2 MB). Free memory was 307.6 MB in the beginning and 528.4 MB in the end (delta: -220.8 MB). Peak memory consumption was 24.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 3114.37 ms. Allocated memory was 590.3 MB in the beginning and 644.9 MB in the end (delta: 54.5 MB). Free memory was 528.4 MB in the beginning and 555.2 MB in the end (delta: -26.9 MB). Peak memory consumption was 27.7 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 625]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 626]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 625]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 626]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 634]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 635]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 635]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 634]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 640]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 640]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 640]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 637]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 640]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 47 locations, 13 error locations. SAFE Result, 3.0s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 174 SDtfs, 164 SDslu, 808 SDs, 0 SdLazy, 1085 SolverSat, 45 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 68 SyntacticMatches, 2 SemanticMatches, 105 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 305 NumberOfCodeBlocks, 305 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 156 ConstructedInterpolants, 27 QuantifiedInterpolants, 44390 SizeOfPredicates, 65 NumberOfNonLiveVariables, 773 ConjunctsInSsa, 185 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0019_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_15-40-39-687.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0019_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_15-40-39-687.csv Received shutdown request...