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 -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/memsafety/test-0019_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-35b68b2 [2018-04-06 20:14:00,373 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-06 20:14:00,375 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-06 20:14:00,388 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-04-06 20:14:00,414 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-04-06 20:14:00,438 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-06 20:14:00,438 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-06 20:14:00,439 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-06 20:14:00,439 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-06 20:14:00,440 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-06 20:14:00,440 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-06 20:14:00,440 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-06 20:14:00,440 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-06 20:14:00,440 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-04-06 20:14:00,440 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-06 20:14:00,441 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-06 20:14:00,441 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-06 20:14:00,441 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-06 20:14:00,441 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-06 20:14:00,442 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-06 20:14:00,442 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-06 20:14:00,442 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-06 20:14:00,442 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-06 20:14:00,442 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-06 20:14:00,443 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-06 20:14:00,443 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-06 20:14:00,443 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-06 20:14:00,443 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-06 20:14:00,443 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-06 20:14:00,443 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-06 20:14:00,444 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-06 20:14:00,444 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-06 20:14:00,444 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-06 20:14:00,444 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-06 20:14:00,444 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-06 20:14:00,445 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-06 20:14:00,445 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-06 20:14:00,445 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:14:00,445 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-06 20:14:00,446 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-06 20:14:00,446 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-06 20:14:00,446 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-06 20:14:00,447 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-06 20:14:00,480 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-06 20:14:00,490 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-06 20:14:00,492 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-06 20:14:00,493 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-06 20:14:00,494 INFO L276 PluginConnector]: CDTParser initialized [2018-04-06 20:14:00,494 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0019_true-valid-memsafety_true-termination.i [2018-04-06 20:14:00,807 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG24944d43d [2018-04-06 20:14:00,985 INFO L287 CDTParser]: IsIndexed: true [2018-04-06 20:14:00,985 INFO L288 CDTParser]: Found 1 translation units. [2018-04-06 20:14:00,986 INFO L168 CDTParser]: Scanning test-0019_true-valid-memsafety_true-termination.i [2018-04-06 20:14:00,998 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-06 20:14:00,998 INFO L215 ultiparseSymbolTable]: [2018-04-06 20:14:00,998 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-06 20:14:00,998 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 [2018-04-06 20:14:00,998 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 [2018-04-06 20:14:00,998 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in test-0019_true-valid-memsafety_true-termination.i [2018-04-06 20:14:00,999 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-06 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20:14:01,003 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 [2018-04-06 20:14:01,003 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 [2018-04-06 20:14:01,003 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 [2018-04-06 20:14:01,003 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 [2018-04-06 20:14:01,003 INFO L230 ultiparseSymbolTable]: Global variable declaration of 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__U_MULTI_ftest______true_valid_memsafety_true_termination_i____suseconds_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-06 20:14:01,006 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__uid_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-06 20:14:01,006 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 [2018-04-06 20:14:01,006 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__pthread_rwlock_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-06 20:14:01,006 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______true_valid_memsafety_true_termination_i__lldiv_t in test-0019_true-valid-memsafety_true-termination.i [2018-04-06 20:14:01,006 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 [2018-04-06 20:14:01,006 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 [2018-04-06 20:14:01,007 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 [2018-04-06 20:14:01,007 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 [2018-04-06 20:14:01,007 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 [2018-04-06 20:14:01,007 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 [2018-04-06 20:14:01,007 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 [2018-04-06 20:14:01,007 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 [2018-04-06 20:14:01,007 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 [2018-04-06 20:14:01,007 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 [2018-04-06 20:14:01,007 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 [2018-04-06 20:14:01,007 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 [2018-04-06 20:14:01,007 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 [2018-04-06 20:14:01,007 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 [2018-04-06 20:14:01,007 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 [2018-04-06 20:14:01,007 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 [2018-04-06 20:14:01,007 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 [2018-04-06 20:14:01,008 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 [2018-04-06 20:14:01,008 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 [2018-04-06 20:14:01,008 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 [2018-04-06 20:14:01,008 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 [2018-04-06 20:14:01,008 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 [2018-04-06 20:14:01,008 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 [2018-04-06 20:14:01,008 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 [2018-04-06 20:14:01,008 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 [2018-04-06 20:14:01,008 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 [2018-04-06 20:14:01,008 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 [2018-04-06 20:14:01,008 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 [2018-04-06 20:14:01,008 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 [2018-04-06 20:14:01,008 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 [2018-04-06 20:14:01,008 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 [2018-04-06 20:14:01,008 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 [2018-04-06 20:14:01,009 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 [2018-04-06 20:14:01,009 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 [2018-04-06 20:14:01,009 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 [2018-04-06 20:14:01,009 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 [2018-04-06 20:14:01,009 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 [2018-04-06 20:14:01,009 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 [2018-04-06 20:14:01,009 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 [2018-04-06 20:14:01,009 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 [2018-04-06 20:14:01,009 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 [2018-04-06 20:14:01,009 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 [2018-04-06 20:14:01,009 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 [2018-04-06 20:14:01,009 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 [2018-04-06 20:14:01,009 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 [2018-04-06 20:14:01,010 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 [2018-04-06 20:14:01,010 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 [2018-04-06 20:14:01,010 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 [2018-04-06 20:14:01,010 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 [2018-04-06 20:14:01,010 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 [2018-04-06 20:14:01,010 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 [2018-04-06 20:14:01,010 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 [2018-04-06 20:14:01,010 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 [2018-04-06 20:14:01,010 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 [2018-04-06 20:14:01,011 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 [2018-04-06 20:14:01,029 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG24944d43d [2018-04-06 20:14:01,035 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-06 20:14:01,037 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-06 20:14:01,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-06 20:14:01,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-06 20:14:01,043 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-06 20:14:01,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 08:14:01" (1/1) ... [2018-04-06 20:14:01,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cd08ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:14:01, skipping insertion in model container [2018-04-06 20:14:01,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 08:14:01" (1/1) ... [2018-04-06 20:14:01,059 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-06 20:14:01,090 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-06 20:14:01,244 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-06 20:14:01,283 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-06 20:14:01,291 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 111 non ball SCCs. Number of states in SCCs 111. [2018-04-06 20:14:01,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:14:01 WrapperNode [2018-04-06 20:14:01,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-06 20:14:01,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-06 20:14:01,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-06 20:14:01,345 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-06 20:14:01,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:14:01" (1/1) ... [2018-04-06 20:14:01,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:14:01" (1/1) ... [2018-04-06 20:14:01,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:14:01" (1/1) ... [2018-04-06 20:14:01,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:14:01" (1/1) ... [2018-04-06 20:14:01,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:14:01" (1/1) ... [2018-04-06 20:14:01,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:14:01" (1/1) ... [2018-04-06 20:14:01,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:14:01" (1/1) ... [2018-04-06 20:14:01,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-06 20:14:01,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-06 20:14:01,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-06 20:14:01,398 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-06 20:14:01,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:14:01" (1/1) ... No working directory specified, using /storage/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 [2018-04-06 20:14:01,525 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-06 20:14:01,526 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-06 20:14:01,526 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_data [2018-04-06 20:14:01,526 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data [2018-04-06 20:14:01,526 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-06 20:14:01,526 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-06 20:14:01,526 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-06 20:14:01,526 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-06 20:14:01,527 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-06 20:14:01,527 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-06 20:14:01,527 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-06 20:14:01,527 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-06 20:14:01,527 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-06 20:14:01,527 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-06 20:14:01,527 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-06 20:14:01,528 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-06 20:14:01,528 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-06 20:14:01,528 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-06 20:14:01,528 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-06 20:14:01,528 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-06 20:14:01,528 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-06 20:14:01,528 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-06 20:14:01,529 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-06 20:14:01,529 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-06 20:14:01,529 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-06 20:14:01,529 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-06 20:14:01,529 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-06 20:14:01,529 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-06 20:14:01,530 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-06 20:14:01,530 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-06 20:14:01,530 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-06 20:14:01,530 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-06 20:14:01,530 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-06 20:14:01,530 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-06 20:14:01,530 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-06 20:14:01,530 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-06 20:14:01,531 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-06 20:14:01,531 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-06 20:14:01,531 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-06 20:14:01,531 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-06 20:14:01,531 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-06 20:14:01,531 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-06 20:14:01,531 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-06 20:14:01,531 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-06 20:14:01,532 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-06 20:14:01,532 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-06 20:14:01,532 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-06 20:14:01,532 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-06 20:14:01,532 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-06 20:14:01,532 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-06 20:14:01,532 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-06 20:14:01,533 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-06 20:14:01,533 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-06 20:14:01,533 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-06 20:14:01,533 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-06 20:14:01,533 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-06 20:14:01,533 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-06 20:14:01,533 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-06 20:14:01,533 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-06 20:14:01,534 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-06 20:14:01,534 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-06 20:14:01,534 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-06 20:14:01,534 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-06 20:14:01,534 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-06 20:14:01,534 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-06 20:14:01,534 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-06 20:14:01,534 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-06 20:14:01,535 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-06 20:14:01,535 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-06 20:14:01,535 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-06 20:14:01,535 INFO L128 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-04-06 20:14:01,535 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-06 20:14:01,535 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-06 20:14:01,535 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-06 20:14:01,535 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-06 20:14:01,536 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-06 20:14:01,536 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-06 20:14:01,536 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-06 20:14:01,536 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-06 20:14:01,536 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-06 20:14:01,536 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-06 20:14:01,536 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-06 20:14:01,537 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-06 20:14:01,537 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-06 20:14:01,537 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-06 20:14:01,537 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-06 20:14:01,537 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-06 20:14:01,537 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-06 20:14:01,537 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-06 20:14:01,537 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-06 20:14:01,538 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-06 20:14:01,538 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-06 20:14:01,538 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-06 20:14:01,538 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-06 20:14:01,538 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-06 20:14:01,538 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-06 20:14:01,538 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-06 20:14:01,538 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-06 20:14:01,539 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-06 20:14:01,539 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-06 20:14:01,539 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-06 20:14:01,539 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-06 20:14:01,539 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-06 20:14:01,539 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-06 20:14:01,539 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-06 20:14:01,539 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-06 20:14:01,540 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-06 20:14:01,540 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_ftest______true_valid_memsafety_true_termination_i__alloc_data [2018-04-06 20:14:01,540 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-06 20:14:01,540 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-04-06 20:14:01,540 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data [2018-04-06 20:14:01,540 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-06 20:14:01,540 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-06 20:14:01,540 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-04-06 20:14:01,541 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-06 20:14:01,541 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-06 20:14:01,876 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-06 20:14:01,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:14:01 BoogieIcfgContainer [2018-04-06 20:14:01,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-06 20:14:01,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-06 20:14:01,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-06 20:14:01,880 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-06 20:14:01,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 08:14:01" (1/3) ... [2018-04-06 20:14:01,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bbf689b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 08:14:01, skipping insertion in model container [2018-04-06 20:14:01,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:14:01" (2/3) ... [2018-04-06 20:14:01,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bbf689b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 08:14:01, skipping insertion in model container [2018-04-06 20:14:01,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:14:01" (3/3) ... [2018-04-06 20:14:01,883 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0019_true-valid-memsafety_true-termination.i [2018-04-06 20:14:01,890 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-06 20:14:01,898 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-04-06 20:14:01,934 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-06 20:14:01,935 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-06 20:14:01,935 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-06 20:14:01,935 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-06 20:14:01,935 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-06 20:14:01,935 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-06 20:14:01,935 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-06 20:14:01,935 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-06 20:14:01,936 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-06 20:14:01,936 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-06 20:14:01,951 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2018-04-06 20:14:01,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-04-06 20:14:01,955 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:14:01,955 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:14:01,956 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]=== [2018-04-06 20:14:01,961 INFO L82 PathProgramCache]: Analyzing trace with hash -165630266, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:14:01,972 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:14:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:14:02,007 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:14:02,044 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 [2018-04-06 20:14:02,046 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:02,052 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:02,053 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-06 20:14:02,100 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 20:14:02,101 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 20:14:02,103 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-06 20:14:02,104 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:02,111 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. [2018-04-06 20:14:02,111 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2018-04-06 20:14:02,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:14:02,138 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:14:02,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:14:02,256 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 20:14:02,257 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-04-06 20:14:02,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-06 20:14:02,274 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-06 20:14:02,274 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-04-06 20:14:02,277 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 9 states. [2018-04-06 20:14:02,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:14:02,459 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2018-04-06 20:14:02,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-06 20:14:02,460 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 11 [2018-04-06 20:14:02,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:14:02,470 INFO L225 Difference]: With dead ends: 52 [2018-04-06 20:14:02,470 INFO L226 Difference]: Without dead ends: 45 [2018-04-06 20:14:02,473 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-04-06 20:14:02,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-04-06 20:14:02,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-04-06 20:14:02,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-04-06 20:14:02,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2018-04-06 20:14:02,506 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 11 [2018-04-06 20:14:02,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:14:02,506 INFO L459 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2018-04-06 20:14:02,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-06 20:14:02,507 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2018-04-06 20:14:02,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-04-06 20:14:02,507 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:14:02,507 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:14:02,507 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]=== [2018-04-06 20:14:02,508 INFO L82 PathProgramCache]: Analyzing trace with hash -165630265, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:14:02,515 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:14:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:14:02,533 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:14:02,544 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 [2018-04-06 20:14:02,544 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:02,564 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 [2018-04-06 20:14:02,564 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:02,569 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:02,569 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-06 20:14:02,619 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 20:14:02,621 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 20:14:02,622 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 [2018-04-06 20:14:02,622 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:02,661 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 20:14:02,662 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 20:14:02,663 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 [2018-04-06 20:14:02,664 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:02,670 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. [2018-04-06 20:14:02,670 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:14 [2018-04-06 20:14:02,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:14:02,682 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:14:02,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:14:02,852 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 20:14:02,852 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2018-04-06 20:14:02,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-06 20:14:02,854 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-06 20:14:02,854 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-04-06 20:14:02,854 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 10 states. [2018-04-06 20:14:02,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:14:02,997 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2018-04-06 20:14:02,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-06 20:14:02,997 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2018-04-06 20:14:02,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:14:02,999 INFO L225 Difference]: With dead ends: 45 [2018-04-06 20:14:02,999 INFO L226 Difference]: Without dead ends: 41 [2018-04-06 20:14:03,000 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2018-04-06 20:14:03,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-04-06 20:14:03,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-04-06 20:14:03,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-04-06 20:14:03,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2018-04-06 20:14:03,006 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 11 [2018-04-06 20:14:03,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:14:03,007 INFO L459 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2018-04-06 20:14:03,007 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-06 20:14:03,007 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2018-04-06 20:14:03,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-06 20:14:03,008 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:14:03,008 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] [2018-04-06 20:14:03,008 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]=== [2018-04-06 20:14:03,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1278198622, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:14:03,017 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:14:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:14:03,047 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:14:03,078 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 [2018-04-06 20:14:03,079 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 [2018-04-06 20:14:03,080 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,081 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,086 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,086 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:21, output treesize:17 [2018-04-06 20:14:03,101 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 [2018-04-06 20:14:03,104 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 20:14:03,106 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 [2018-04-06 20:14:03,106 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,112 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,117 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,117 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:11 [2018-04-06 20:14:03,161 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 [2018-04-06 20:14:03,163 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 11 treesize of output 3 [2018-04-06 20:14:03,164 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,165 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,168 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,168 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-04-06 20:14:03,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:14:03,193 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:14:03,252 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-06 20:14:03,252 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,253 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,253 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:1 [2018-04-06 20:14:03,296 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 20 treesize of output 18 [2018-04-06 20:14:03,298 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 17 [2018-04-06 20:14:03,309 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 13 treesize of output 6 [2018-04-06 20:14:03,309 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,316 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 12 [2018-04-06 20:14:03,316 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-06 20:14:03,330 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-06 20:14:03,344 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-06 20:14:03,350 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2018-04-06 20:14:03,353 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2018-04-06 20:14:03,354 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,362 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-04-06 20:14:03,378 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 12 [2018-04-06 20:14:03,379 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-04-06 20:14:03,381 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 13 treesize of output 6 [2018-04-06 20:14:03,381 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,391 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-06 20:14:03,424 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 31 [2018-04-06 20:14:03,451 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2018-04-06 20:14:03,452 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,469 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2018-04-06 20:14:03,470 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2018-04-06 20:14:03,475 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2018-04-06 20:14:03,476 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-04-06 20:14:03,488 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-06 20:14:03,502 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-06 20:14:03,504 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2018-04-06 20:14:03,505 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-04-06 20:14:03,506 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,507 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,525 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-06 20:14:03,525 INFO L202 ElimStorePlain]: Needed 16 recursive calls to eliminate 2 variables, input treesize:25, output treesize:38 [2018-04-06 20:14:03,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:14:03,624 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 20:14:03,624 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 16 [2018-04-06 20:14:03,625 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-06 20:14:03,625 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-06 20:14:03,625 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-04-06 20:14:03,625 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand 17 states. [2018-04-06 20:14:03,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:14:03,739 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2018-04-06 20:14:03,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-06 20:14:03,739 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 23 [2018-04-06 20:14:03,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:14:03,740 INFO L225 Difference]: With dead ends: 41 [2018-04-06 20:14:03,740 INFO L226 Difference]: Without dead ends: 40 [2018-04-06 20:14:03,740 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2018-04-06 20:14:03,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-04-06 20:14:03,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-04-06 20:14:03,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-04-06 20:14:03,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2018-04-06 20:14:03,744 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 23 [2018-04-06 20:14:03,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:14:03,744 INFO L459 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2018-04-06 20:14:03,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-06 20:14:03,744 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2018-04-06 20:14:03,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-04-06 20:14:03,745 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:14:03,745 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] [2018-04-06 20:14:03,745 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]=== [2018-04-06 20:14:03,745 INFO L82 PathProgramCache]: Analyzing trace with hash 969451687, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:14:03,751 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:14:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:14:03,768 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:14:03,783 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 [2018-04-06 20:14:03,784 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,787 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,788 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-04-06 20:14:03,809 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 [2018-04-06 20:14:03,811 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 [2018-04-06 20:14:03,811 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,813 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,819 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,819 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2018-04-06 20:14:03,830 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 20:14:03,831 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 20:14:03,832 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 33 [2018-04-06 20:14:03,833 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,841 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,841 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:32 [2018-04-06 20:14:03,859 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 [2018-04-06 20:14:03,861 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 20:14:03,862 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 [2018-04-06 20:14:03,862 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,867 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,873 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:03,874 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:39, output treesize:38 [2018-04-06 20:14:03,902 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 38 treesize of output 28 [2018-04-06 20:14:03,904 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2018-04-06 20:14:03,905 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:03,909 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:03,912 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:03,913 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:15 [2018-04-06 20:14:03,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:14:03,985 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:14:04,104 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:04,105 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 5 variables, input treesize:36, output treesize:1 [2018-04-06 20:14:04,257 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 25 treesize of output 23 [2018-04-06 20:14:04,259 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 22 [2018-04-06 20:14:04,277 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2018-04-06 20:14:04,278 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-06 20:14:04,286 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-06 20:14:04,299 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-06 20:14:04,308 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 37 [2018-04-06 20:14:04,313 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 35 [2018-04-06 20:14:04,339 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2018-04-06 20:14:04,340 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-06 20:14:04,352 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-06 20:14:04,374 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2018-04-06 20:14:04,374 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:04,376 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2018-04-06 20:14:04,377 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:04,404 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2018-04-06 20:14:04,433 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 29 treesize of output 21 [2018-04-06 20:14:04,434 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:04,449 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 22 [2018-04-06 20:14:04,451 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-06 20:14:04,461 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-06 20:14:04,481 INFO L267 ElimStorePlain]: Start of recursive call 5: 3 dim-1 vars, End of recursive call: 3 dim-0 vars, and 3 xjuncts. [2018-04-06 20:14:04,482 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2018-04-06 20:14:04,484 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2018-04-06 20:14:04,485 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:04,488 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:04,522 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 10 dim-0 vars, and 5 xjuncts. [2018-04-06 20:14:04,522 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 2 variables, input treesize:36, output treesize:138 [2018-04-06 20:14:05,190 WARN L151 SmtUtils]: Spent 629ms on a formula simplification. DAG size of input: 73 DAG size of output 47 [2018-04-06 20:14:05,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:14:05,245 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 20:14:05,245 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2018-04-06 20:14:05,245 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-06 20:14:05,246 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-06 20:14:05,246 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2018-04-06 20:14:05,246 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 23 states. [2018-04-06 20:14:05,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:14:05,573 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-04-06 20:14:05,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-06 20:14:05,574 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 24 [2018-04-06 20:14:05,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:14:05,575 INFO L225 Difference]: With dead ends: 43 [2018-04-06 20:14:05,575 INFO L226 Difference]: Without dead ends: 42 [2018-04-06 20:14:05,576 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=132, Invalid=738, Unknown=0, NotChecked=0, Total=870 [2018-04-06 20:14:05,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-04-06 20:14:05,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2018-04-06 20:14:05,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-04-06 20:14:05,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 39 transitions. [2018-04-06 20:14:05,581 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 39 transitions. Word has length 24 [2018-04-06 20:14:05,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:14:05,582 INFO L459 AbstractCegarLoop]: Abstraction has 39 states and 39 transitions. [2018-04-06 20:14:05,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-06 20:14:05,582 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2018-04-06 20:14:05,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-06 20:14:05,583 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:14:05,583 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] [2018-04-06 20:14:05,583 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]=== [2018-04-06 20:14:05,583 INFO L82 PathProgramCache]: Analyzing trace with hash -364829783, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:14:05,592 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:14:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:14:05,616 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:14:05,641 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 [2018-04-06 20:14:05,643 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 [2018-04-06 20:14:05,643 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:05,644 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:05,648 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:05,648 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:16 [2018-04-06 20:14:05,694 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 19 treesize of output 15 [2018-04-06 20:14:05,696 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:05,696 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 15 treesize of output 11 [2018-04-06 20:14:05,697 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:05,699 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:05,704 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:05,704 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:3 [2018-04-06 20:14:05,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:14:05,731 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:14:05,790 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 14 treesize of output 12 [2018-04-06 20:14:05,801 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2018-04-06 20:14:05,802 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:05,803 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:05,807 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:05,807 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:22, output treesize:7 [2018-04-06 20:14:05,837 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 9 treesize of output 7 [2018-04-06 20:14:05,839 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2018-04-06 20:14:05,839 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:05,840 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:05,846 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-06 20:14:05,846 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:33 [2018-04-06 20:14:05,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:14:05,936 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 20:14:05,936 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 16 [2018-04-06 20:14:05,937 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-06 20:14:05,937 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-06 20:14:05,937 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2018-04-06 20:14:05,937 INFO L87 Difference]: Start difference. First operand 39 states and 39 transitions. Second operand 17 states. [2018-04-06 20:14:06,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:14:06,106 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2018-04-06 20:14:06,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-06 20:14:06,106 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 26 [2018-04-06 20:14:06,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:14:06,107 INFO L225 Difference]: With dead ends: 39 [2018-04-06 20:14:06,107 INFO L226 Difference]: Without dead ends: 38 [2018-04-06 20:14:06,108 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2018-04-06 20:14:06,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-04-06 20:14:06,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-04-06 20:14:06,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-04-06 20:14:06,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2018-04-06 20:14:06,113 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 26 [2018-04-06 20:14:06,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:14:06,113 INFO L459 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2018-04-06 20:14:06,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-06 20:14:06,114 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2018-04-06 20:14:06,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-04-06 20:14:06,114 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:14:06,115 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] [2018-04-06 20:14:06,115 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]=== [2018-04-06 20:14:06,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1575178689, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:14:06,121 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:14:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:14:06,144 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:14:06,155 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 [2018-04-06 20:14:06,155 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:06,159 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:06,159 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-04-06 20:14:06,168 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 [2018-04-06 20:14:06,169 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 [2018-04-06 20:14:06,170 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:06,171 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:06,177 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:06,178 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2018-04-06 20:14:06,189 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 20:14:06,189 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 20:14:06,190 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 33 [2018-04-06 20:14:06,190 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:06,198 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:06,198 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:32 [2018-04-06 20:14:06,213 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 [2018-04-06 20:14:06,215 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 20:14:06,216 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 [2018-04-06 20:14:06,216 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:06,221 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:06,227 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:06,227 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:39, output treesize:38 [2018-04-06 20:14:06,268 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 45 treesize of output 33 [2018-04-06 20:14:06,270 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 33 treesize of output 15 [2018-04-06 20:14:06,271 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:06,282 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:06,286 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:06,287 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:45, output treesize:15 [2018-04-06 20:14:06,348 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 20:14:06,349 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2018-04-06 20:14:06,349 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:06,354 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. [2018-04-06 20:14:06,354 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:11 [2018-04-06 20:14:06,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:14:06,374 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:14:06,546 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:06,546 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 5 variables, input treesize:39, output treesize:1 [2018-04-06 20:14:06,660 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2018-04-06 20:14:06,662 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:06,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2018-04-06 20:14:06,664 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:06,681 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:06,684 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 38 [2018-04-06 20:14:06,686 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 34 [2018-04-06 20:14:06,740 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:06,747 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 35 [2018-04-06 20:14:06,749 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-06 20:14:06,752 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:06,762 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 54 [2018-04-06 20:14:06,764 INFO L267 ElimStorePlain]: Start of recursive call 7: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2018-04-06 20:14:06,766 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:06,776 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 51 [2018-04-06 20:14:06,778 INFO L267 ElimStorePlain]: Start of recursive call 8: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2018-04-06 20:14:06,780 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:06,780 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:06,780 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:06,783 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 39 [2018-04-06 20:14:06,784 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:06,786 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:06,792 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2018-04-06 20:14:06,793 INFO L267 ElimStorePlain]: Start of recursive call 10: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-06 20:14:06,795 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:06,796 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2018-04-06 20:14:06,797 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:06,798 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 24 treesize of output 16 [2018-04-06 20:14:06,799 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:06,879 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: 12 dim-0 vars, and 9 xjuncts. [2018-04-06 20:14:06,937 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 12 dim-0 vars, and 9 xjuncts. [2018-04-06 20:14:06,945 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 59 [2018-04-06 20:14:06,948 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 54 [2018-04-06 20:14:06,993 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:07,003 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 54 [2018-04-06 20:14:07,005 INFO L267 ElimStorePlain]: Start of recursive call 15: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2018-04-06 20:14:07,008 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 29 treesize of output 21 [2018-04-06 20:14:07,009 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:07,017 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:07,023 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 35 [2018-04-06 20:14:07,024 INFO L267 ElimStorePlain]: Start of recursive call 17: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-06 20:14:07,027 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:07,035 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2018-04-06 20:14:07,037 INFO L267 ElimStorePlain]: Start of recursive call 18: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-06 20:14:07,045 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:07,065 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 51 [2018-04-06 20:14:07,068 INFO L267 ElimStorePlain]: Start of recursive call 19: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2018-04-06 20:14:07,070 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:07,071 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2018-04-06 20:14:07,072 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:07,079 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:07,081 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2018-04-06 20:14:07,082 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:07,160 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: 10 dim-0 vars, and 8 xjuncts. [2018-04-06 20:14:07,241 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:07,243 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 31 [2018-04-06 20:14:07,243 INFO L267 ElimStorePlain]: Start of recursive call 22: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:07,245 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:07,246 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 31 [2018-04-06 20:14:07,247 INFO L267 ElimStorePlain]: Start of recursive call 23: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:07,248 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:07,249 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 39 [2018-04-06 20:14:07,250 INFO L267 ElimStorePlain]: Start of recursive call 24: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:07,252 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:07,254 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2018-04-06 20:14:07,255 INFO L267 ElimStorePlain]: Start of recursive call 25: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:07,257 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:07,258 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 50 [2018-04-06 20:14:07,259 INFO L267 ElimStorePlain]: Start of recursive call 26: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:07,261 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:07,262 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 55 [2018-04-06 20:14:07,262 INFO L267 ElimStorePlain]: Start of recursive call 27: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:07,264 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:07,266 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2018-04-06 20:14:07,266 INFO L267 ElimStorePlain]: Start of recursive call 28: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:07,271 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:07,273 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2018-04-06 20:14:07,274 INFO L267 ElimStorePlain]: Start of recursive call 29: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:07,382 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:07,398 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 76 [2018-04-06 20:14:07,488 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:07,490 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 32 [2018-04-06 20:14:07,491 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:07,536 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:07,544 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2018-04-06 20:14:07,545 INFO L267 ElimStorePlain]: Start of recursive call 32: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-06 20:14:07,548 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:07,564 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 35 [2018-04-06 20:14:07,565 INFO L267 ElimStorePlain]: Start of recursive call 33: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-06 20:14:07,567 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:07,578 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 43 [2018-04-06 20:14:07,580 INFO L267 ElimStorePlain]: Start of recursive call 34: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2018-04-06 20:14:07,639 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 20:14:07,641 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 34 [2018-04-06 20:14:07,641 INFO L267 ElimStorePlain]: Start of recursive call 35: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:07,678 INFO L267 ElimStorePlain]: Start of recursive call 30: 2 dim-0 vars, 3 dim-1 vars, End of recursive call: 9 dim-0 vars, and 7 xjuncts. [2018-04-06 20:14:07,794 INFO L267 ElimStorePlain]: Start of recursive call 13: 3 dim-1 vars, End of recursive call: 31 dim-0 vars, and 13 xjuncts. [2018-04-06 20:14:08,024 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 66 dim-0 vars, and 21 xjuncts. [2018-04-06 20:14:08,024 INFO L202 ElimStorePlain]: Needed 35 recursive calls to eliminate 2 variables, input treesize:58, output treesize:807 [2018-04-06 20:14:08,302 WARN L151 SmtUtils]: Spent 136ms on a formula simplification. DAG size of input: 337 DAG size of output 48 [2018-04-06 20:14:08,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:14:08,409 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 20:14:08,409 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [15, 14] imperfect sequences [] total 28 [2018-04-06 20:14:08,410 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-06 20:14:08,410 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-06 20:14:08,410 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2018-04-06 20:14:08,411 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 29 states. [2018-04-06 20:14:08,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:14:08,827 INFO L93 Difference]: Finished difference Result 47 states and 46 transitions. [2018-04-06 20:14:08,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-06 20:14:08,827 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 27 [2018-04-06 20:14:08,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:14:08,828 INFO L225 Difference]: With dead ends: 47 [2018-04-06 20:14:08,828 INFO L226 Difference]: Without dead ends: 37 [2018-04-06 20:14:08,829 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=160, Invalid=1172, Unknown=0, NotChecked=0, Total=1332 [2018-04-06 20:14:08,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-04-06 20:14:08,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-04-06 20:14:08,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-04-06 20:14:08,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 36 transitions. [2018-04-06 20:14:08,833 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 36 transitions. Word has length 27 [2018-04-06 20:14:08,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:14:08,834 INFO L459 AbstractCegarLoop]: Abstraction has 37 states and 36 transitions. [2018-04-06 20:14:08,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-06 20:14:08,834 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 36 transitions. [2018-04-06 20:14:08,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-06 20:14:08,834 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:14:08,835 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, 1, 1, 1, 1, 1] [2018-04-06 20:14:08,835 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]=== [2018-04-06 20:14:08,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1024367498, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:14:08,841 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:14:08,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:14:08,865 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:14:08,908 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 [2018-04-06 20:14:08,910 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 [2018-04-06 20:14:08,911 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:08,912 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:08,921 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:08,921 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:29 [2018-04-06 20:14:08,952 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 [2018-04-06 20:14:08,954 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 20:14:08,955 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 20:14:08,955 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 [2018-04-06 20:14:08,956 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:08,968 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:08,975 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:08,975 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:51, output treesize:50 [2018-04-06 20:14:09,045 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 66 treesize of output 52 [2018-04-06 20:14:09,048 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 20:14:09,048 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 52 treesize of output 36 [2018-04-06 20:14:09,049 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:09,054 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:09,060 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:09,060 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:71, output treesize:37 [2018-04-06 20:14:09,199 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 (= 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 [2018-04-06 20:14:09,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:14:09,208 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:14:09,290 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_~#data~0.base_BEFORE_CALL_9| Int)) (= (store (store (store |c_old(#valid)| |c___U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data_#in~data.lo.base| 0) |c___U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data_#in~data.hi.base| 0) |v_main_~#data~0.base_BEFORE_CALL_9| 0) (store |c_#valid| |v_main_~#data~0.base_BEFORE_CALL_9| 0))) is different from false [2018-04-06 20:14:09,293 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_~#data~0.base_BEFORE_CALL_9| Int)) (= (store (store |c_#valid| c___U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data_~hi~0.base 0) |v_main_~#data~0.base_BEFORE_CALL_9| 0) (store (store (store |c_old(#valid)| |c___U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data_#in~data.lo.base| 0) |c___U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data_#in~data.hi.base| 0) |v_main_~#data~0.base_BEFORE_CALL_9| 0))) is different from false [2018-04-06 20:14:09,296 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_~#data~0.base_BEFORE_CALL_9| Int)) (= (store (store (store |c_old(#valid)| |c___U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data_#in~data.lo.base| 0) |c___U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data_#in~data.hi.base| 0) |v_main_~#data~0.base_BEFORE_CALL_9| 0) (store (store (store |c_#valid| c___U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data_~lo~0.base 0) c___U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data_~hi~0.base 0) |v_main_~#data~0.base_BEFORE_CALL_9| 0))) is different from false [2018-04-06 20:14:09,299 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_~#data~0.base_BEFORE_CALL_9| Int)) (= (store (store (store |c_#valid| c___U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data_~lo~0.base 0) c___U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data_~data.hi.base 0) |v_main_~#data~0.base_BEFORE_CALL_9| 0) (store (store (store |c_old(#valid)| |c___U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data_#in~data.lo.base| 0) |c___U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data_#in~data.hi.base| 0) |v_main_~#data~0.base_BEFORE_CALL_9| 0))) is different from false [2018-04-06 20:14:09,302 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_~#data~0.base_BEFORE_CALL_9| Int)) (= (store (store (store |c_old(#valid)| |c___U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data_#in~data.lo.base| 0) |c___U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data_#in~data.hi.base| 0) |v_main_~#data~0.base_BEFORE_CALL_9| 0) (store (store (store |c_#valid| c___U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data_~data.lo.base 0) c___U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data_~data.hi.base 0) |v_main_~#data~0.base_BEFORE_CALL_9| 0))) is different from false [2018-04-06 20:14:09,304 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_~#data~0.base_BEFORE_CALL_9| Int)) (= (store (store (store |c_old(#valid)| |c___U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data_#in~data.lo.base| 0) |c___U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data_#in~data.hi.base| 0) |v_main_~#data~0.base_BEFORE_CALL_9| 0) (store (store (store |c_#valid| |c___U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data_#in~data.lo.base| 0) |c___U_MULTI_ftest______true_valid_memsafety_true_termination_i__free_data_#in~data.hi.base| 0) |v_main_~#data~0.base_BEFORE_CALL_9| 0))) is different from false [2018-04-06 20:14:09,412 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 30 treesize of output 28 [2018-04-06 20:14:09,413 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 32 [2018-04-06 20:14:09,419 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 27 treesize of output 18 [2018-04-06 20:14:09,420 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-06 20:14:09,422 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:09,423 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:14:09,429 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-06 20:14:09,429 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:49, output treesize:37 [2018-04-06 20:14:09,466 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: |v_old(#valid)_BEFORE_CALL_4| term size 36 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:270) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:243) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:445) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:421) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:328) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:237) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:185) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedRefinementStrategy.getTraceCheck(FixedRefinementStrategy.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:408) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:417) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:363) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-04-06 20:14:09,468 INFO L168 Benchmark]: Toolchain (without parser) took 8432.72 ms. Allocated memory was 307.8 MB in the beginning and 586.7 MB in the end (delta: 278.9 MB). Free memory was 244.6 MB in the beginning and 510.3 MB in the end (delta: -265.7 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. [2018-04-06 20:14:09,469 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 307.8 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-06 20:14:09,470 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.62 ms. Allocated memory is still 307.8 MB. Free memory was 244.6 MB in the beginning and 220.7 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. [2018-04-06 20:14:09,470 INFO L168 Benchmark]: Boogie Preprocessor took 52.50 ms. Allocated memory is still 307.8 MB. Free memory was 220.7 MB in the beginning and 218.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-04-06 20:14:09,470 INFO L168 Benchmark]: RCFGBuilder took 479.17 ms. Allocated memory was 307.8 MB in the beginning and 472.4 MB in the end (delta: 164.6 MB). Free memory was 218.7 MB in the beginning and 412.5 MB in the end (delta: -193.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 5.3 GB. [2018-04-06 20:14:09,470 INFO L168 Benchmark]: TraceAbstraction took 7590.31 ms. Allocated memory was 472.4 MB in the beginning and 586.7 MB in the end (delta: 114.3 MB). Free memory was 412.5 MB in the beginning and 510.3 MB in the end (delta: -97.8 MB). Peak memory consumption was 16.4 MB. Max. memory is 5.3 GB. [2018-04-06 20:14:09,472 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 307.8 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 306.62 ms. Allocated memory is still 307.8 MB. Free memory was 244.6 MB in the beginning and 220.7 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 52.50 ms. Allocated memory is still 307.8 MB. Free memory was 220.7 MB in the beginning and 218.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 479.17 ms. Allocated memory was 307.8 MB in the beginning and 472.4 MB in the end (delta: 164.6 MB). Free memory was 218.7 MB in the beginning and 412.5 MB in the end (delta: -193.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 7590.31 ms. Allocated memory was 472.4 MB in the beginning and 586.7 MB in the end (delta: 114.3 MB). Free memory was 412.5 MB in the beginning and 510.3 MB in the end (delta: -97.8 MB). Peak memory consumption was 16.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: |v_old(#valid)_BEFORE_CALL_4| term size 36 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: |v_old(#valid)_BEFORE_CALL_4| term size 36: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0019_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-06_20-14-09-478.csv Received shutdown request...