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-ext2/length_test03_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-835382a-m [2018-04-05 17:20:15,801 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-05 17:20:15,803 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-05 17:20:15,817 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-05 17:20:15,818 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-05 17:20:15,819 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-05 17:20:15,820 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-05 17:20:15,823 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-05 17:20:15,825 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-05 17:20:15,826 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-05 17:20:15,828 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-05 17:20:15,829 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-05 17:20:15,830 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-05 17:20:15,831 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-05 17:20:15,832 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-05 17:20:15,834 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-05 17:20:15,839 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-05 17:20:15,841 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-05 17:20:15,842 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-05 17:20:15,844 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-05 17:20:15,846 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-05 17:20:15,847 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-05 17:20:15,847 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-05 17:20:15,848 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-05 17:20:15,849 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-05 17:20:15,850 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-05 17:20:15,851 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-05 17:20:15,851 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-05 17:20:15,852 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-05 17:20:15,853 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-05 17:20:15,853 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-05 17:20:15,854 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 [2018-04-05 17:20:15,884 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-05 17:20:15,884 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-05 17:20:15,885 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-05 17:20:15,885 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-05 17:20:15,885 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-05 17:20:15,886 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-05 17:20:15,886 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-05 17:20:15,886 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-05 17:20:15,886 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-05 17:20:15,887 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-05 17:20:15,887 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-05 17:20:15,887 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-05 17:20:15,887 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-05 17:20:15,887 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-05 17:20:15,887 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-05 17:20:15,887 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-05 17:20:15,888 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-05 17:20:15,888 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-05 17:20:15,888 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-05 17:20:15,888 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-05 17:20:15,888 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-05 17:20:15,888 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-05 17:20:15,889 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-05 17:20:15,889 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-05 17:20:15,889 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-05 17:20:15,889 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 17:20:15,889 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-05 17:20:15,890 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-05 17:20:15,890 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-05 17:20:15,890 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-05 17:20:15,890 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-05 17:20:15,890 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 17:20:15,890 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-05 17:20:15,891 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-05 17:20:15,891 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-05 17:20:15,892 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-05 17:20:15,892 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-05 17:20:15,925 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-05 17:20:15,936 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-05 17:20:15,939 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-05 17:20:15,941 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-05 17:20:15,941 INFO L276 PluginConnector]: CDTParser initialized [2018-04-05 17:20:15,942 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety-ext2/length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,263 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG2ec921e4a [2018-04-05 17:20:16,464 INFO L287 CDTParser]: IsIndexed: true [2018-04-05 17:20:16,464 INFO L288 CDTParser]: Found 1 translation units. [2018-04-05 17:20:16,464 INFO L168 CDTParser]: Scanning length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,474 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-05 17:20:16,475 INFO L215 ultiparseSymbolTable]: [2018-04-05 17:20:16,475 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-05 17:20:16,475 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_flength_test___false_valid_memtrack_i____bswap_32 ('__bswap_32') in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,476 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_flength_test___false_valid_memtrack_i____bswap_64 ('__bswap_64') in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,476 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_flength_test___false_valid_memtrack_i__append ('append') in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,476 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,476 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-05 17:20:16,476 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__gid_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,476 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__off_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,476 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____blkcnt64_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,477 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__ldiv_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,477 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____nlink_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,477 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__u_short in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,477 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____int8_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,477 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__u_int64_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,477 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____mode_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,477 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____timer_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,477 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____uid_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,478 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__ssize_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,478 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____sig_atomic_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,478 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__key_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,478 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____ssize_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,478 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__nlink_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,478 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__fsfilcnt_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,478 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__timer_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,478 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__mode_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,478 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____fsword_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,478 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____u_short in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,478 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__int32_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,478 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____uint64_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,478 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pid_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,479 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____clockid_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,479 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__u_int8_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,479 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____suseconds_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,479 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__clockid_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,479 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____pthread_slist_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,479 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__quad_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,479 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__caddr_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,479 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____fd_mask in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,479 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____id_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,479 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__u_int in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,479 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__u_int16_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,479 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____syscall_ulong_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,479 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_cond_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,480 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____int32_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,480 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,480 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____uint32_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,480 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__div_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,480 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__blksize_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,480 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_spinlock_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,480 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__fsblkcnt_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,480 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__size_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,480 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____pid_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,480 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_once_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,480 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____u_quad_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,480 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____intptr_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,480 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_mutexattr_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,481 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____u_char in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,481 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____off64_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,481 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____quad_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,481 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____fsblkcnt64_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,481 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____socklen_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,481 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__lldiv_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,481 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__uid_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,481 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__int16_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,481 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_barrier_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,481 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_attr_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,481 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__wchar_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,481 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____rlim_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,481 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____int16_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,481 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_rwlockattr_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,482 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__u_char in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,482 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__daddr_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,482 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__blkcnt_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,482 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__sigset_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,482 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____uint16_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,482 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____u_long in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,482 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____gid_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,482 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____ino_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,482 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____loff_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,482 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____ino64_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,482 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____sigset_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,482 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__u_int32_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,482 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____fsid_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,483 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____dev_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,483 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__ulong in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,483 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__u_long in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,483 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__suseconds_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,483 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__fd_mask in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,483 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__clock_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,483 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____caddr_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,483 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____off_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,483 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__fd_set in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,483 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__dev_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,483 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____rlim64_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,483 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____key_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,484 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__loff_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,484 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__uint in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,484 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____uint8_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,484 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__time_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,484 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_rwlock_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,484 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____u_int in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,484 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__fsid_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,484 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____qaddr_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,484 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____blkcnt_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,485 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____clock_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,485 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____daddr_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,485 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__id_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,485 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__int64_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,485 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____blksize_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,485 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_condattr_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,485 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__ushort in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,486 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____syscall_slong_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,486 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__u_quad_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,486 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____fsfilcnt_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,486 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____time_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,486 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__int8_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,486 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_key_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,486 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____fsblkcnt_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,486 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__register_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,487 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____int64_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,487 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_barrierattr_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,487 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____fsfilcnt64_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,487 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_mutex_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,487 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__ino_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,487 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____useconds_t in length_test03_false-valid-memtrack.i [2018-04-05 17:20:16,507 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG2ec921e4a [2018-04-05 17:20:16,512 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-05 17:20:16,514 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-05 17:20:16,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-05 17:20:16,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-05 17:20:16,520 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-05 17:20:16,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 05:20:16" (1/1) ... [2018-04-05 17:20:16,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d5b187d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 05:20:16, skipping insertion in model container [2018-04-05 17:20:16,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 05:20:16" (1/1) ... [2018-04-05 17:20:16,539 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 17:20:16,572 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 17:20:16,768 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 17:20:16,824 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 17:20:16,832 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 119 non ball SCCs. Number of states in SCCs 119. [2018-04-05 17:20:16,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 05:20:16 WrapperNode [2018-04-05 17:20:16,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-05 17:20:16,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-05 17:20:16,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-05 17:20:16,883 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-05 17:20:16,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 05:20:16" (1/1) ... [2018-04-05 17:20:16,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 05:20:16" (1/1) ... [2018-04-05 17:20:16,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 05:20:16" (1/1) ... [2018-04-05 17:20:16,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 05:20:16" (1/1) ... [2018-04-05 17:20:16,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 05:20:16" (1/1) ... [2018-04-05 17:20:16,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 05:20:16" (1/1) ... [2018-04-05 17:20:16,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 05:20:16" (1/1) ... [2018-04-05 17:20:16,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-05 17:20:16,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-05 17:20:16,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-05 17:20:16,946 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-05 17:20:16,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 05:20:16" (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 [2018-04-05 17:20:17,074 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-05 17:20:17,074 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-05 17:20:17,074 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_flength_test___false_valid_memtrack_i____bswap_32 [2018-04-05 17:20:17,074 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_flength_test___false_valid_memtrack_i____bswap_64 [2018-04-05 17:20:17,074 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_flength_test___false_valid_memtrack_i__append [2018-04-05 17:20:17,074 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-05 17:20:17,075 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-05 17:20:17,075 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-05 17:20:17,075 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-05 17:20:17,075 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-05 17:20:17,075 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-05 17:20:17,075 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-05 17:20:17,076 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-05 17:20:17,076 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-05 17:20:17,076 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-05 17:20:17,076 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-05 17:20:17,076 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-05 17:20:17,076 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-05 17:20:17,076 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-05 17:20:17,077 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-05 17:20:17,077 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-05 17:20:17,077 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-05 17:20:17,077 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-05 17:20:17,077 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_flength_test___false_valid_memtrack_i____bswap_32 [2018-04-05 17:20:17,077 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_flength_test___false_valid_memtrack_i____bswap_64 [2018-04-05 17:20:17,077 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-05 17:20:17,078 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-05 17:20:17,078 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-05 17:20:17,078 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-05 17:20:17,078 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-05 17:20:17,078 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-05 17:20:17,078 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-05 17:20:17,078 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-05 17:20:17,078 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-05 17:20:17,079 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-05 17:20:17,079 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-05 17:20:17,079 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-05 17:20:17,079 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-05 17:20:17,079 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-05 17:20:17,079 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-05 17:20:17,079 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-05 17:20:17,079 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-05 17:20:17,080 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-05 17:20:17,080 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-05 17:20:17,080 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-05 17:20:17,080 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-05 17:20:17,080 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-05 17:20:17,080 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-05 17:20:17,080 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-05 17:20:17,080 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-05 17:20:17,080 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-05 17:20:17,080 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-05 17:20:17,081 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-05 17:20:17,081 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-05 17:20:17,081 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-05 17:20:17,081 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-05 17:20:17,081 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-05 17:20:17,081 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-05 17:20:17,081 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-05 17:20:17,081 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-05 17:20:17,081 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-05 17:20:17,081 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-05 17:20:17,081 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-05 17:20:17,081 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-05 17:20:17,082 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-05 17:20:17,082 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-05 17:20:17,082 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-05 17:20:17,082 INFO L128 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-04-05 17:20:17,082 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-05 17:20:17,082 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-05 17:20:17,082 INFO L128 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-04-05 17:20:17,082 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-05 17:20:17,082 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-05 17:20:17,082 INFO L128 BoogieDeclarations]: Found specification of procedure quick_exit [2018-04-05 17:20:17,082 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-05 17:20:17,082 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-05 17:20:17,082 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-05 17:20:17,083 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-05 17:20:17,083 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-05 17:20:17,083 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-05 17:20:17,083 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-05 17:20:17,083 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-05 17:20:17,083 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-05 17:20:17,083 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-05 17:20:17,083 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-05 17:20:17,083 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-05 17:20:17,083 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-05 17:20:17,083 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-05 17:20:17,083 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-05 17:20:17,084 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-05 17:20:17,084 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-05 17:20:17,084 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-05 17:20:17,084 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-05 17:20:17,084 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-05 17:20:17,084 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-05 17:20:17,084 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-05 17:20:17,084 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-05 17:20:17,085 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-05 17:20:17,085 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-05 17:20:17,085 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-05 17:20:17,085 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-05 17:20:17,085 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-05 17:20:17,085 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-05 17:20:17,085 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-05 17:20:17,085 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-05 17:20:17,086 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-05 17:20:17,086 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-05 17:20:17,086 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-05 17:20:17,086 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-05 17:20:17,086 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-05 17:20:17,086 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-05 17:20:17,086 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-05 17:20:17,086 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2018-04-05 17:20:17,087 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-05 17:20:17,087 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_flength_test___false_valid_memtrack_i__append [2018-04-05 17:20:17,087 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-05 17:20:17,087 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-05 17:20:17,087 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-04-05 17:20:17,087 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-04-05 17:20:17,087 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-05 17:20:17,087 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-05 17:20:17,088 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-05 17:20:17,088 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-05 17:20:17,088 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-05 17:20:17,088 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-05 17:20:17,668 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-05 17:20:17,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 05:20:17 BoogieIcfgContainer [2018-04-05 17:20:17,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-05 17:20:17,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-05 17:20:17,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-05 17:20:17,672 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-05 17:20:17,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 05:20:16" (1/3) ... [2018-04-05 17:20:17,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b9c86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 05:20:17, skipping insertion in model container [2018-04-05 17:20:17,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 05:20:16" (2/3) ... [2018-04-05 17:20:17,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b9c86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 05:20:17, skipping insertion in model container [2018-04-05 17:20:17,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 05:20:17" (3/3) ... [2018-04-05 17:20:17,675 INFO L107 eAbstractionObserver]: Analyzing ICFG length_test03_false-valid-memtrack.i [2018-04-05 17:20:17,682 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-05 17:20:17,689 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 55 error locations. [2018-04-05 17:20:17,732 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-05 17:20:17,733 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-05 17:20:17,733 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-05 17:20:17,733 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-05 17:20:17,733 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-05 17:20:17,733 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-05 17:20:17,733 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-05 17:20:17,733 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-05 17:20:17,733 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-05 17:20:17,734 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-05 17:20:17,749 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2018-04-05 17:20:17,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-04-05 17:20:17,753 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 17:20:17,754 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 17:20:17,754 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-05 17:20:17,758 INFO L82 PathProgramCache]: Analyzing trace with hash -203092121, 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 [2018-04-05 17:20:17,770 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 17:20:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 17:20:17,803 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 17:20:17,846 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 [2018-04-05 17:20:17,849 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:17,854 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:17,855 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 17:20:17,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:17,865 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 17:20:17,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:17,893 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 17:20:17,893 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-05 17:20:17,895 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-05 17:20:17,905 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-05 17:20:17,905 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-05 17:20:17,907 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 4 states. [2018-04-05 17:20:18,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 17:20:18,278 INFO L93 Difference]: Finished difference Result 354 states and 377 transitions. [2018-04-05 17:20:18,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-05 17:20:18,280 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-04-05 17:20:18,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 17:20:18,295 INFO L225 Difference]: With dead ends: 354 [2018-04-05 17:20:18,295 INFO L226 Difference]: Without dead ends: 212 [2018-04-05 17:20:18,300 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-05 17:20:18,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2018-04-05 17:20:18,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 164. [2018-04-05 17:20:18,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2018-04-05 17:20:18,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 170 transitions. [2018-04-05 17:20:18,354 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 170 transitions. Word has length 9 [2018-04-05 17:20:18,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 17:20:18,354 INFO L459 AbstractCegarLoop]: Abstraction has 164 states and 170 transitions. [2018-04-05 17:20:18,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-05 17:20:18,355 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 170 transitions. [2018-04-05 17:20:18,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-04-05 17:20:18,355 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 17:20:18,356 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 17:20:18,356 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-05 17:20:18,356 INFO L82 PathProgramCache]: Analyzing trace with hash -203092120, 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 [2018-04-05 17:20:18,363 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 17:20:18,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 17:20:18,376 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 17:20:18,384 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 [2018-04-05 17:20:18,384 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:18,393 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:18,394 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-05 17:20:18,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:18,403 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 17:20:18,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:18,445 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 17:20:18,445 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2018-04-05 17:20:18,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-05 17:20:18,447 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-05 17:20:18,447 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-05 17:20:18,447 INFO L87 Difference]: Start difference. First operand 164 states and 170 transitions. Second operand 6 states. [2018-04-05 17:20:18,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 17:20:18,746 INFO L93 Difference]: Finished difference Result 169 states and 176 transitions. [2018-04-05 17:20:18,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-05 17:20:18,748 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2018-04-05 17:20:18,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 17:20:18,750 INFO L225 Difference]: With dead ends: 169 [2018-04-05 17:20:18,750 INFO L226 Difference]: Without dead ends: 167 [2018-04-05 17:20:18,751 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-05 17:20:18,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-04-05 17:20:18,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 162. [2018-04-05 17:20:18,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2018-04-05 17:20:18,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 168 transitions. [2018-04-05 17:20:18,763 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 168 transitions. Word has length 9 [2018-04-05 17:20:18,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 17:20:18,764 INFO L459 AbstractCegarLoop]: Abstraction has 162 states and 168 transitions. [2018-04-05 17:20:18,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-05 17:20:18,764 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 168 transitions. [2018-04-05 17:20:18,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-05 17:20:18,764 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 17:20:18,765 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 17:20:18,765 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-05 17:20:18,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1384557355, 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 [2018-04-05 17:20:18,771 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 17:20:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 17:20:18,788 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 17:20:18,793 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 [2018-04-05 17:20:18,793 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:18,796 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:18,796 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 17:20:18,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:18,805 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 17:20:18,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:18,833 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 17:20:18,833 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-05 17:20:18,834 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-05 17:20:18,834 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-05 17:20:18,834 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-05 17:20:18,834 INFO L87 Difference]: Start difference. First operand 162 states and 168 transitions. Second operand 4 states. [2018-04-05 17:20:19,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 17:20:19,041 INFO L93 Difference]: Finished difference Result 187 states and 195 transitions. [2018-04-05 17:20:19,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-05 17:20:19,041 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-04-05 17:20:19,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 17:20:19,043 INFO L225 Difference]: With dead ends: 187 [2018-04-05 17:20:19,043 INFO L226 Difference]: Without dead ends: 184 [2018-04-05 17:20:19,044 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-05 17:20:19,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-04-05 17:20:19,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 167. [2018-04-05 17:20:19,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-04-05 17:20:19,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 175 transitions. [2018-04-05 17:20:19,057 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 175 transitions. Word has length 13 [2018-04-05 17:20:19,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 17:20:19,057 INFO L459 AbstractCegarLoop]: Abstraction has 167 states and 175 transitions. [2018-04-05 17:20:19,057 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-05 17:20:19,057 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 175 transitions. [2018-04-05 17:20:19,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-05 17:20:19,058 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 17:20:19,058 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 17:20:19,058 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-05 17:20:19,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1384557356, 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 [2018-04-05 17:20:19,066 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 17:20:19,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 17:20:19,082 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 17:20:19,089 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 [2018-04-05 17:20:19,090 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:19,093 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:19,094 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-05 17:20:19,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:19,111 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 17:20:19,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:19,159 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 17:20:19,159 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2018-04-05 17:20:19,159 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-05 17:20:19,159 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-05 17:20:19,159 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-05 17:20:19,160 INFO L87 Difference]: Start difference. First operand 167 states and 175 transitions. Second operand 6 states. [2018-04-05 17:20:19,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 17:20:19,290 INFO L93 Difference]: Finished difference Result 172 states and 181 transitions. [2018-04-05 17:20:19,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-05 17:20:19,291 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-04-05 17:20:19,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 17:20:19,292 INFO L225 Difference]: With dead ends: 172 [2018-04-05 17:20:19,292 INFO L226 Difference]: Without dead ends: 170 [2018-04-05 17:20:19,293 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-05 17:20:19,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-04-05 17:20:19,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 165. [2018-04-05 17:20:19,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-04-05 17:20:19,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 173 transitions. [2018-04-05 17:20:19,305 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 173 transitions. Word has length 13 [2018-04-05 17:20:19,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 17:20:19,306 INFO L459 AbstractCegarLoop]: Abstraction has 165 states and 173 transitions. [2018-04-05 17:20:19,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-05 17:20:19,306 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 173 transitions. [2018-04-05 17:20:19,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-05 17:20:19,307 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 17:20:19,307 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 17:20:19,307 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-05 17:20:19,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1217890101, 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 [2018-04-05 17:20:19,314 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 17:20:19,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 17:20:19,336 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 17:20:19,348 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 [2018-04-05 17:20:19,348 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:19,350 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:19,350 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 17:20:19,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:19,374 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 17:20:19,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:19,400 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 17:20:19,400 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-05 17:20:19,400 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-05 17:20:19,400 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-05 17:20:19,400 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-05 17:20:19,401 INFO L87 Difference]: Start difference. First operand 165 states and 173 transitions. Second operand 4 states. [2018-04-05 17:20:19,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 17:20:19,480 INFO L93 Difference]: Finished difference Result 165 states and 173 transitions. [2018-04-05 17:20:19,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-05 17:20:19,480 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-04-05 17:20:19,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 17:20:19,482 INFO L225 Difference]: With dead ends: 165 [2018-04-05 17:20:19,482 INFO L226 Difference]: Without dead ends: 160 [2018-04-05 17:20:19,482 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-05 17:20:19,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2018-04-05 17:20:19,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2018-04-05 17:20:19,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2018-04-05 17:20:19,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 168 transitions. [2018-04-05 17:20:19,489 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 168 transitions. Word has length 25 [2018-04-05 17:20:19,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 17:20:19,489 INFO L459 AbstractCegarLoop]: Abstraction has 160 states and 168 transitions. [2018-04-05 17:20:19,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-05 17:20:19,489 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 168 transitions. [2018-04-05 17:20:19,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-05 17:20:19,489 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 17:20:19,490 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 17:20:19,490 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-05 17:20:19,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1217890102, 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 [2018-04-05 17:20:19,495 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 17:20:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 17:20:19,515 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 17:20:19,520 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 [2018-04-05 17:20:19,520 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:19,523 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:19,523 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-05 17:20:19,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:19,531 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 17:20:19,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:19,593 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 17:20:19,593 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2018-04-05 17:20:19,593 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-05 17:20:19,593 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-05 17:20:19,593 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-05 17:20:19,594 INFO L87 Difference]: Start difference. First operand 160 states and 168 transitions. Second operand 6 states. [2018-04-05 17:20:19,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 17:20:19,707 INFO L93 Difference]: Finished difference Result 160 states and 168 transitions. [2018-04-05 17:20:19,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-05 17:20:19,708 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-04-05 17:20:19,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 17:20:19,709 INFO L225 Difference]: With dead ends: 160 [2018-04-05 17:20:19,709 INFO L226 Difference]: Without dead ends: 155 [2018-04-05 17:20:19,710 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-05 17:20:19,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2018-04-05 17:20:19,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2018-04-05 17:20:19,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-04-05 17:20:19,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 163 transitions. [2018-04-05 17:20:19,718 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 163 transitions. Word has length 25 [2018-04-05 17:20:19,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 17:20:19,718 INFO L459 AbstractCegarLoop]: Abstraction has 155 states and 163 transitions. [2018-04-05 17:20:19,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-05 17:20:19,718 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 163 transitions. [2018-04-05 17:20:19,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-05 17:20:19,719 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 17:20:19,719 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] [2018-04-05 17:20:19,719 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-05 17:20:19,720 INFO L82 PathProgramCache]: Analyzing trace with hash -900112552, 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 [2018-04-05 17:20:19,726 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 17:20:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 17:20:19,755 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 17:20:19,767 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 17:20:19,768 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:19,771 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:19,771 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-04-05 17:20:19,811 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 17:20:19,812 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:19,814 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:19,815 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-04-05 17:20:19,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:19,840 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 17:20:19,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:19,910 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 17:20:19,910 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2018-04-05 17:20:19,910 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-05 17:20:19,911 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-05 17:20:19,911 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-04-05 17:20:19,911 INFO L87 Difference]: Start difference. First operand 155 states and 163 transitions. Second operand 13 states. [2018-04-05 17:20:20,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 17:20:20,287 INFO L93 Difference]: Finished difference Result 252 states and 272 transitions. [2018-04-05 17:20:20,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-05 17:20:20,288 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26 [2018-04-05 17:20:20,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 17:20:20,290 INFO L225 Difference]: With dead ends: 252 [2018-04-05 17:20:20,290 INFO L226 Difference]: Without dead ends: 244 [2018-04-05 17:20:20,291 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 36 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2018-04-05 17:20:20,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2018-04-05 17:20:20,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 183. [2018-04-05 17:20:20,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2018-04-05 17:20:20,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 203 transitions. [2018-04-05 17:20:20,298 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 203 transitions. Word has length 26 [2018-04-05 17:20:20,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 17:20:20,298 INFO L459 AbstractCegarLoop]: Abstraction has 183 states and 203 transitions. [2018-04-05 17:20:20,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-05 17:20:20,298 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 203 transitions. [2018-04-05 17:20:20,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-05 17:20:20,299 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 17:20:20,299 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] [2018-04-05 17:20:20,299 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-05 17:20:20,299 INFO L82 PathProgramCache]: Analyzing trace with hash -900112551, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 17:20:20,305 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 17:20:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 17:20:20,326 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 17:20:20,342 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 [2018-04-05 17:20:20,343 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:20,344 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:20,344 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 17:20:20,360 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2018-04-05 17:20:20,361 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:20,371 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 17:20:20,371 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:20,379 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:20,379 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:33, output treesize:27 [2018-04-05 17:20:20,436 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:20,437 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:20,438 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 19 treesize of output 28 [2018-04-05 17:20:20,438 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:20,453 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:20,453 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:20,454 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 [2018-04-05 17:20:20,454 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:20,466 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:20,466 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:21 [2018-04-05 17:20:20,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:20,503 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 17:20:20,868 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:20,881 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:20,882 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 13 treesize of output 3 [2018-04-05 17:20:20,882 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:20,889 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 17:20:20,890 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:19 [2018-04-05 17:20:20,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:20,987 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 17:20:20,987 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 19 [2018-04-05 17:20:20,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-05 17:20:20,987 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-05 17:20:20,988 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2018-04-05 17:20:20,988 INFO L87 Difference]: Start difference. First operand 183 states and 203 transitions. Second operand 20 states. [2018-04-05 17:20:21,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 17:20:21,827 INFO L93 Difference]: Finished difference Result 415 states and 439 transitions. [2018-04-05 17:20:21,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-05 17:20:21,827 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 26 [2018-04-05 17:20:21,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 17:20:21,830 INFO L225 Difference]: With dead ends: 415 [2018-04-05 17:20:21,830 INFO L226 Difference]: Without dead ends: 412 [2018-04-05 17:20:21,831 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=172, Invalid=640, Unknown=0, NotChecked=0, Total=812 [2018-04-05 17:20:21,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2018-04-05 17:20:21,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 182. [2018-04-05 17:20:21,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-04-05 17:20:21,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 199 transitions. [2018-04-05 17:20:21,839 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 199 transitions. Word has length 26 [2018-04-05 17:20:21,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 17:20:21,839 INFO L459 AbstractCegarLoop]: Abstraction has 182 states and 199 transitions. [2018-04-05 17:20:21,839 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-05 17:20:21,840 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 199 transitions. [2018-04-05 17:20:21,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-04-05 17:20:21,840 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 17:20:21,841 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] [2018-04-05 17:20:21,841 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-05 17:20:21,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1772223494, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 17:20:21,846 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 17:20:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 17:20:21,865 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 17:20:21,875 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:21,877 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 14 treesize of output 17 [2018-04-05 17:20:21,877 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:21,885 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:21,886 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:21,887 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 [2018-04-05 17:20:21,887 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:21,893 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:21,893 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:27 [2018-04-05 17:20:21,977 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:21,978 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:21,980 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:21,981 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 36 [2018-04-05 17:20:21,982 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:21,998 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:21,999 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:22,000 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:22,001 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-05 17:20:22,001 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:22,011 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 17:20:22,011 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:38, output treesize:26 [2018-04-05 17:20:22,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:22,056 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 17:20:22,270 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:22,276 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 21 treesize of output 34 [2018-04-05 17:20:22,298 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 4 [2018-04-05 17:20:22,298 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:22,305 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:22,305 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:22,306 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 16 treesize of output 14 [2018-04-05 17:20:22,307 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:22,314 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 17:20:22,320 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-05 17:20:22,320 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:36, output treesize:33 [2018-04-05 17:20:22,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:22,381 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 17:20:22,381 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 16 [2018-04-05 17:20:22,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-05 17:20:22,381 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-05 17:20:22,382 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2018-04-05 17:20:22,382 INFO L87 Difference]: Start difference. First operand 182 states and 199 transitions. Second operand 17 states. [2018-04-05 17:20:22,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 17:20:22,903 INFO L93 Difference]: Finished difference Result 297 states and 318 transitions. [2018-04-05 17:20:22,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 17:20:22,904 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 29 [2018-04-05 17:20:22,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 17:20:22,906 INFO L225 Difference]: With dead ends: 297 [2018-04-05 17:20:22,906 INFO L226 Difference]: Without dead ends: 292 [2018-04-05 17:20:22,907 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2018-04-05 17:20:22,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2018-04-05 17:20:22,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 190. [2018-04-05 17:20:22,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2018-04-05 17:20:22,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 203 transitions. [2018-04-05 17:20:22,915 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 203 transitions. Word has length 29 [2018-04-05 17:20:22,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 17:20:22,915 INFO L459 AbstractCegarLoop]: Abstraction has 190 states and 203 transitions. [2018-04-05 17:20:22,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-05 17:20:22,915 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 203 transitions. [2018-04-05 17:20:22,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-04-05 17:20:22,916 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 17:20:22,916 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, 1, 1] [2018-04-05 17:20:22,916 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-05 17:20:22,917 INFO L82 PathProgramCache]: Analyzing trace with hash 572985994, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 17:20:22,925 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 17:20:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 17:20:22,952 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 17:20:22,964 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 [2018-04-05 17:20:22,965 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 [2018-04-05 17:20:22,965 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:22,967 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:22,973 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 [2018-04-05 17:20:22,975 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-05 17:20:22,975 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:22,976 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:22,980 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:22,981 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:28, output treesize:20 [2018-04-05 17:20:22,990 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 [2018-04-05 17:20:22,996 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:22,997 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 [2018-04-05 17:20:22,997 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:23,002 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:23,011 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 [2018-04-05 17:20:23,014 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:23,014 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 [2018-04-05 17:20:23,014 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:23,018 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:23,023 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:23,024 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:46, output treesize:38 [2018-04-05 17:20:23,033 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:23,034 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:23,034 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 [2018-04-05 17:20:23,035 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:23,040 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:23,040 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:37 [2018-04-05 17:20:23,064 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 28 treesize of output 29 [2018-04-05 17:20:23,065 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 [2018-04-05 17:20:23,066 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:23,070 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:23,083 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 28 treesize of output 29 [2018-04-05 17:20:23,086 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 [2018-04-05 17:20:23,086 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:23,090 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:23,099 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:23,099 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:59, output treesize:51 [2018-04-05 17:20:23,125 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 37 treesize of output 36 [2018-04-05 17:20:23,128 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:23,129 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 [2018-04-05 17:20:23,130 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:23,139 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:23,158 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 37 treesize of output 36 [2018-04-05 17:20:23,160 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:23,161 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 [2018-04-05 17:20:23,161 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:23,168 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:23,179 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 17:20:23,180 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:77, output treesize:69 [2018-04-05 17:20:23,328 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 40 treesize of output 34 [2018-04-05 17:20:23,341 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:23,342 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 13 treesize of output 6 [2018-04-05 17:20:23,342 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:23,351 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:23,352 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 18 treesize of output 10 [2018-04-05 17:20:23,352 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:23,356 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:23,367 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 40 treesize of output 34 [2018-04-05 17:20:23,371 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:23,371 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 13 treesize of output 6 [2018-04-05 17:20:23,372 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:23,383 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:23,384 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 18 treesize of output 10 [2018-04-05 17:20:23,384 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:23,388 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:23,393 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:23,393 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:83, output treesize:7 [2018-04-05 17:20:23,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:23,433 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 17:20:23,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:23,675 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 17:20:23,675 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12, 9] imperfect sequences [] total 17 [2018-04-05 17:20:23,675 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-05 17:20:23,675 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-05 17:20:23,675 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2018-04-05 17:20:23,676 INFO L87 Difference]: Start difference. First operand 190 states and 203 transitions. Second operand 17 states. [2018-04-05 17:20:23,916 WARN L148 SmtUtils]: Spent 110ms on a formula simplification that was a NOOP. DAG size: 42 [2018-04-05 17:20:24,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 17:20:24,303 INFO L93 Difference]: Finished difference Result 390 states and 420 transitions. [2018-04-05 17:20:24,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-05 17:20:24,303 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 38 [2018-04-05 17:20:24,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 17:20:24,304 INFO L225 Difference]: With dead ends: 390 [2018-04-05 17:20:24,304 INFO L226 Difference]: Without dead ends: 215 [2018-04-05 17:20:24,305 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 58 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=123, Invalid=428, Unknown=1, NotChecked=0, Total=552 [2018-04-05 17:20:24,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2018-04-05 17:20:24,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 203. [2018-04-05 17:20:24,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2018-04-05 17:20:24,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 217 transitions. [2018-04-05 17:20:24,319 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 217 transitions. Word has length 38 [2018-04-05 17:20:24,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 17:20:24,319 INFO L459 AbstractCegarLoop]: Abstraction has 203 states and 217 transitions. [2018-04-05 17:20:24,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-05 17:20:24,320 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 217 transitions. [2018-04-05 17:20:24,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-04-05 17:20:24,321 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 17:20:24,321 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, 1, 1, 1, 1] [2018-04-05 17:20:24,321 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-05 17:20:24,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1111040505, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 17:20:24,334 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 17:20:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 17:20:24,361 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 17:20:24,379 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 [2018-04-05 17:20:24,381 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 [2018-04-05 17:20:24,382 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:24,385 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:24,393 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 [2018-04-05 17:20:24,395 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 [2018-04-05 17:20:24,395 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:24,396 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:24,401 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:24,401 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:35, output treesize:27 [2018-04-05 17:20:24,417 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:24,418 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:24,418 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 [2018-04-05 17:20:24,418 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:24,424 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:24,424 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:26 [2018-04-05 17:20:24,452 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 21 treesize of output 22 [2018-04-05 17:20:24,454 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 [2018-04-05 17:20:24,455 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:24,459 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:24,471 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 21 treesize of output 22 [2018-04-05 17:20:24,473 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 [2018-04-05 17:20:24,473 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:24,476 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:24,483 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:24,483 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:48, output treesize:40 [2018-04-05 17:20:24,510 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 30 treesize of output 29 [2018-04-05 17:20:24,513 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:24,513 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 [2018-04-05 17:20:24,514 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:24,520 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:24,536 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 30 treesize of output 29 [2018-04-05 17:20:24,538 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:24,539 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 [2018-04-05 17:20:24,539 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:24,552 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:24,561 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 17:20:24,562 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:66, output treesize:58 [2018-04-05 17:20:24,717 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 31 [2018-04-05 17:20:24,721 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:24,722 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 [2018-04-05 17:20:24,722 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:24,730 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:24,730 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 13 treesize of output 6 [2018-04-05 17:20:24,730 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:24,734 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:24,747 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 31 [2018-04-05 17:20:24,750 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:24,750 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 13 treesize of output 6 [2018-04-05 17:20:24,750 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:24,756 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:24,757 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 [2018-04-05 17:20:24,757 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:24,760 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:24,766 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:24,766 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 7 variables, input treesize:82, output treesize:7 [2018-04-05 17:20:24,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:24,804 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 17:20:25,074 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 27 treesize of output 25 [2018-04-05 17:20:25,089 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 [2018-04-05 17:20:25,089 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:25,096 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:25,110 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 27 treesize of output 25 [2018-04-05 17:20:25,130 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 [2018-04-05 17:20:25,130 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:25,135 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:25,148 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-05 17:20:25,149 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:55, output treesize:27 [2018-04-05 17:20:25,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:25,212 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 17:20:25,212 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [15, 13] imperfect sequences [] total 22 [2018-04-05 17:20:25,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-05 17:20:25,213 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-05 17:20:25,213 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=381, Unknown=2, NotChecked=0, Total=462 [2018-04-05 17:20:25,213 INFO L87 Difference]: Start difference. First operand 203 states and 217 transitions. Second operand 22 states. [2018-04-05 17:20:25,604 WARN L148 SmtUtils]: Spent 145ms on a formula simplification that was a NOOP. DAG size: 41 [2018-04-05 17:20:26,799 WARN L148 SmtUtils]: Spent 1122ms on a formula simplification that was a NOOP. DAG size: 51 [2018-04-05 17:20:27,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 17:20:27,505 INFO L93 Difference]: Finished difference Result 428 states and 459 transitions. [2018-04-05 17:20:27,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-05 17:20:27,505 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 40 [2018-04-05 17:20:27,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 17:20:27,507 INFO L225 Difference]: With dead ends: 428 [2018-04-05 17:20:27,507 INFO L226 Difference]: Without dead ends: 253 [2018-04-05 17:20:27,509 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 56 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=247, Invalid=1009, Unknown=4, NotChecked=0, Total=1260 [2018-04-05 17:20:27,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2018-04-05 17:20:27,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 206. [2018-04-05 17:20:27,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2018-04-05 17:20:27,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 220 transitions. [2018-04-05 17:20:27,530 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 220 transitions. Word has length 40 [2018-04-05 17:20:27,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 17:20:27,531 INFO L459 AbstractCegarLoop]: Abstraction has 206 states and 220 transitions. [2018-04-05 17:20:27,531 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-05 17:20:27,531 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 220 transitions. [2018-04-05 17:20:27,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-04-05 17:20:27,532 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 17:20:27,532 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 17:20:27,532 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-05 17:20:27,533 INFO L82 PathProgramCache]: Analyzing trace with hash -2010604953, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 17:20:27,539 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 17:20:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 17:20:27,562 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 17:20:27,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:27,570 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 17:20:27,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:27,620 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 17:20:27,620 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2018-04-05 17:20:27,620 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-05 17:20:27,621 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-05 17:20:27,621 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-05 17:20:27,621 INFO L87 Difference]: Start difference. First operand 206 states and 220 transitions. Second operand 4 states. [2018-04-05 17:20:27,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 17:20:27,649 INFO L93 Difference]: Finished difference Result 290 states and 307 transitions. [2018-04-05 17:20:27,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-05 17:20:27,649 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2018-04-05 17:20:27,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 17:20:27,650 INFO L225 Difference]: With dead ends: 290 [2018-04-05 17:20:27,650 INFO L226 Difference]: Without dead ends: 219 [2018-04-05 17:20:27,651 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-05 17:20:27,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2018-04-05 17:20:27,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 200. [2018-04-05 17:20:27,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2018-04-05 17:20:27,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 211 transitions. [2018-04-05 17:20:27,663 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 211 transitions. Word has length 51 [2018-04-05 17:20:27,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 17:20:27,663 INFO L459 AbstractCegarLoop]: Abstraction has 200 states and 211 transitions. [2018-04-05 17:20:27,663 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-05 17:20:27,663 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 211 transitions. [2018-04-05 17:20:27,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-04-05 17:20:27,664 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 17:20:27,664 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 17:20:27,664 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-05 17:20:27,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1142640021, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 17:20:27,674 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 17:20:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 17:20:27,702 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 17:20:27,742 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 17:20:27,742 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:27,756 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. [2018-04-05 17:20:27,757 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:11 [2018-04-05 17:20:27,788 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 17:20:27,789 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:27,793 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:27,793 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-04-05 17:20:27,840 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:27,840 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 17:20:28,046 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:28,081 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 17:20:28,081 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 15 [2018-04-05 17:20:28,081 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-05 17:20:28,082 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-05 17:20:28,082 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=182, Unknown=5, NotChecked=0, Total=240 [2018-04-05 17:20:28,082 INFO L87 Difference]: Start difference. First operand 200 states and 211 transitions. Second operand 16 states. [2018-04-05 17:20:28,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 17:20:28,866 INFO L93 Difference]: Finished difference Result 247 states and 257 transitions. [2018-04-05 17:20:28,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-05 17:20:28,866 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 57 [2018-04-05 17:20:28,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 17:20:28,868 INFO L225 Difference]: With dead ends: 247 [2018-04-05 17:20:28,868 INFO L226 Difference]: Without dead ends: 245 [2018-04-05 17:20:28,869 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 94 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=407, Unknown=6, NotChecked=0, Total=552 [2018-04-05 17:20:28,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2018-04-05 17:20:28,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 202. [2018-04-05 17:20:28,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2018-04-05 17:20:28,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 215 transitions. [2018-04-05 17:20:28,885 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 215 transitions. Word has length 57 [2018-04-05 17:20:28,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 17:20:28,885 INFO L459 AbstractCegarLoop]: Abstraction has 202 states and 215 transitions. [2018-04-05 17:20:28,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-05 17:20:28,886 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 215 transitions. [2018-04-05 17:20:28,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-04-05 17:20:28,888 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 17:20:28,888 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 17:20:28,889 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-05 17:20:28,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1142640022, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 17:20:28,900 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 17:20:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 17:20:28,941 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 17:20:29,001 WARN L1033 $PredicateComparison]: unable to prove that (exists ((__U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base Int)) (= |c_#length| (store |c_old(#length)| __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base 9))) is different from true [2018-04-05 17:20:29,020 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 20 [2018-04-05 17:20:29,021 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-04-05 17:20:29,033 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. [2018-04-05 17:20:29,033 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:19 [2018-04-05 17:20:29,154 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 33 [2018-04-05 17:20:29,155 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 4 xjuncts. [2018-04-05 17:20:29,188 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-05 17:20:29,189 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:47 [2018-04-05 17:20:29,234 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2018-04-05 17:20:29,235 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 17:20:32,971 WARN L1011 $PredicateComparison]: unable to prove that (forall ((v_main_~list2~0.offset_BEFORE_CALL_3 Int) (v_main_~list2~0.base_BEFORE_CALL_6 Int)) (or (exists ((|v___U_MULTI_flength_test___false_valid_memtrack_i__append_#t~malloc2.base_18| Int) (|v___U_MULTI_flength_test___false_valid_memtrack_i__append_#t~malloc2.base_21| Int)) (< (select (store (store |c_old(#length)| |v___U_MULTI_flength_test___false_valid_memtrack_i__append_#t~malloc2.base_21| 9) |v___U_MULTI_flength_test___false_valid_memtrack_i__append_#t~malloc2.base_18| 9) v_main_~list2~0.base_BEFORE_CALL_6) (+ v_main_~list2~0.offset_BEFORE_CALL_3 4))) (forall ((v_prenex_11 Int)) (<= (+ v_main_~list2~0.offset_BEFORE_CALL_3 4) (select (store |c_#length| v_prenex_11 9) v_main_~list2~0.base_BEFORE_CALL_6))) (< v_main_~list2~0.offset_BEFORE_CALL_3 0))) is different from false [2018-04-05 17:20:37,514 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:37,568 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 22 treesize of output 37 [2018-04-05 17:20:37,921 WARN L151 SmtUtils]: Spent 350ms on a formula simplification. DAG size of input: 33 DAG size of output 28 [2018-04-05 17:20:37,929 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:37,930 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:37,931 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 21 treesize of output 19 [2018-04-05 17:20:37,931 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:37,991 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 18 treesize of output 8 [2018-04-05 17:20:38,045 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:38,095 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 17:20:38,155 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:38,156 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:26, output treesize:3 [2018-04-05 17:20:38,346 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2018-04-05 17:20:38,383 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 17:20:38,384 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2018-04-05 17:20:38,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-05 17:20:38,385 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-05 17:20:38,385 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=8, NotChecked=70, Total=420 [2018-04-05 17:20:38,385 INFO L87 Difference]: Start difference. First operand 202 states and 215 transitions. Second operand 21 states. [2018-04-05 17:20:40,665 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((v_main_~list2~0.offset_BEFORE_CALL_3 Int) (v_main_~list2~0.base_BEFORE_CALL_6 Int)) (or (exists ((|v___U_MULTI_flength_test___false_valid_memtrack_i__append_#t~malloc2.base_18| Int) (|v___U_MULTI_flength_test___false_valid_memtrack_i__append_#t~malloc2.base_21| Int)) (< (select (store (store |c_old(#length)| |v___U_MULTI_flength_test___false_valid_memtrack_i__append_#t~malloc2.base_21| 9) |v___U_MULTI_flength_test___false_valid_memtrack_i__append_#t~malloc2.base_18| 9) v_main_~list2~0.base_BEFORE_CALL_6) (+ v_main_~list2~0.offset_BEFORE_CALL_3 4))) (forall ((v_prenex_11 Int)) (<= (+ v_main_~list2~0.offset_BEFORE_CALL_3 4) (select (store |c_#length| v_prenex_11 9) v_main_~list2~0.base_BEFORE_CALL_6))) (< v_main_~list2~0.offset_BEFORE_CALL_3 0))) (= (store |c_old(#length)| |c___U_MULTI_flength_test___false_valid_memtrack_i__append_#t~malloc2.base| 9) |c_#length|)) is different from false [2018-04-05 17:20:42,668 WARN L1011 $PredicateComparison]: unable to prove that (and (exists ((__U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base Int)) (= |c_#length| (store |c_old(#length)| __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base 9))) (forall ((v_main_~list2~0.offset_BEFORE_CALL_3 Int) (v_main_~list2~0.base_BEFORE_CALL_6 Int)) (or (exists ((|v___U_MULTI_flength_test___false_valid_memtrack_i__append_#t~malloc2.base_18| Int) (|v___U_MULTI_flength_test___false_valid_memtrack_i__append_#t~malloc2.base_21| Int)) (< (select (store (store |c_old(#length)| |v___U_MULTI_flength_test___false_valid_memtrack_i__append_#t~malloc2.base_21| 9) |v___U_MULTI_flength_test___false_valid_memtrack_i__append_#t~malloc2.base_18| 9) v_main_~list2~0.base_BEFORE_CALL_6) (+ v_main_~list2~0.offset_BEFORE_CALL_3 4))) (forall ((v_prenex_11 Int)) (<= (+ v_main_~list2~0.offset_BEFORE_CALL_3 4) (select (store |c_#length| v_prenex_11 9) v_main_~list2~0.base_BEFORE_CALL_6))) (< v_main_~list2~0.offset_BEFORE_CALL_3 0)))) is different from false [2018-04-05 17:20:42,672 WARN L1033 $PredicateComparison]: unable to prove that (and (exists ((__U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base Int)) (= |c_#length| (store |c_old(#length)| __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base 9))) (forall ((v_main_~list2~0.offset_BEFORE_CALL_3 Int) (v_main_~list2~0.base_BEFORE_CALL_6 Int)) (or (exists ((|v___U_MULTI_flength_test___false_valid_memtrack_i__append_#t~malloc2.base_18| Int) (|v___U_MULTI_flength_test___false_valid_memtrack_i__append_#t~malloc2.base_21| Int)) (< (select (store (store |c_old(#length)| |v___U_MULTI_flength_test___false_valid_memtrack_i__append_#t~malloc2.base_21| 9) |v___U_MULTI_flength_test___false_valid_memtrack_i__append_#t~malloc2.base_18| 9) v_main_~list2~0.base_BEFORE_CALL_6) (+ v_main_~list2~0.offset_BEFORE_CALL_3 4))) (forall ((v_prenex_11 Int)) (<= (+ v_main_~list2~0.offset_BEFORE_CALL_3 4) (select (store |c_#length| v_prenex_11 9) v_main_~list2~0.base_BEFORE_CALL_6))) (< v_main_~list2~0.offset_BEFORE_CALL_3 0)))) is different from true [2018-04-05 17:20:43,664 WARN L151 SmtUtils]: Spent 364ms on a formula simplification. DAG size of input: 47 DAG size of output 23 [2018-04-05 17:20:47,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 17:20:47,155 INFO L93 Difference]: Finished difference Result 453 states and 489 transitions. [2018-04-05 17:20:47,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-05 17:20:47,155 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 57 [2018-04-05 17:20:47,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 17:20:47,157 INFO L225 Difference]: With dead ends: 453 [2018-04-05 17:20:47,157 INFO L226 Difference]: Without dead ends: 451 [2018-04-05 17:20:47,158 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 94 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 16.5s TimeCoverageRelationStatistics Valid=107, Invalid=450, Unknown=11, NotChecked=188, Total=756 [2018-04-05 17:20:47,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2018-04-05 17:20:47,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 318. [2018-04-05 17:20:47,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2018-04-05 17:20:47,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 364 transitions. [2018-04-05 17:20:47,184 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 364 transitions. Word has length 57 [2018-04-05 17:20:47,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 17:20:47,184 INFO L459 AbstractCegarLoop]: Abstraction has 318 states and 364 transitions. [2018-04-05 17:20:47,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-05 17:20:47,185 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 364 transitions. [2018-04-05 17:20:47,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-04-05 17:20:47,185 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 17:20:47,186 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 17:20:47,186 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-05 17:20:47,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1521938275, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 17:20:47,199 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 17:20:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 17:20:47,236 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 17:20:47,324 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:47,326 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 14 treesize of output 17 [2018-04-05 17:20:47,327 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:47,342 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:47,344 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:47,345 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 [2018-04-05 17:20:47,346 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:47,356 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. [2018-04-05 17:20:47,356 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:27 [2018-04-05 17:20:47,438 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:47,439 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:47,442 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 30 [2018-04-05 17:20:47,442 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:47,462 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:47,463 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:47,464 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:47,464 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-05 17:20:47,465 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:47,489 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. [2018-04-05 17:20:47,489 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:30 [2018-04-05 17:20:47,592 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:47,592 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 17:20:50,842 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:50,850 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 21 treesize of output 34 [2018-04-05 17:20:50,895 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 4 [2018-04-05 17:20:50,895 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:50,903 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:50,904 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:50,904 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 16 treesize of output 14 [2018-04-05 17:20:50,905 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:50,910 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 17:20:50,917 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-05 17:20:50,918 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:36, output treesize:33 [2018-04-05 17:20:50,958 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:50,958 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 2 variables, input treesize:22, output treesize:1 [2018-04-05 17:20:50,997 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:51,018 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 17:20:51,019 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 21 [2018-04-05 17:20:51,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-05 17:20:51,019 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-05 17:20:51,020 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=391, Unknown=3, NotChecked=0, Total=462 [2018-04-05 17:20:51,020 INFO L87 Difference]: Start difference. First operand 318 states and 364 transitions. Second operand 22 states. [2018-04-05 17:20:54,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 17:20:54,470 INFO L93 Difference]: Finished difference Result 391 states and 448 transitions. [2018-04-05 17:20:54,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-05 17:20:54,471 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 60 [2018-04-05 17:20:54,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 17:20:54,473 INFO L225 Difference]: With dead ends: 391 [2018-04-05 17:20:54,474 INFO L226 Difference]: Without dead ends: 388 [2018-04-05 17:20:54,474 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=123, Invalid=575, Unknown=4, NotChecked=0, Total=702 [2018-04-05 17:20:54,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2018-04-05 17:20:54,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 295. [2018-04-05 17:20:54,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2018-04-05 17:20:54,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 336 transitions. [2018-04-05 17:20:54,500 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 336 transitions. Word has length 60 [2018-04-05 17:20:54,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 17:20:54,500 INFO L459 AbstractCegarLoop]: Abstraction has 295 states and 336 transitions. [2018-04-05 17:20:54,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-05 17:20:54,500 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 336 transitions. [2018-04-05 17:20:54,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-05 17:20:54,501 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 17:20:54,501 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 17:20:54,502 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-05 17:20:54,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1568270471, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 17:20:54,511 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 17:20:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 17:20:54,548 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 17:20:54,564 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 17:20:54,565 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:54,568 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:54,568 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2018-04-05 17:20:54,656 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 [2018-04-05 17:20:54,657 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 [2018-04-05 17:20:54,658 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:54,659 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:54,665 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:54,665 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2018-04-05 17:20:54,713 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 35 [2018-04-05 17:20:54,717 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 24 treesize of output 23 [2018-04-05 17:20:54,718 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:54,755 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 30 [2018-04-05 17:20:54,756 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-05 17:20:54,769 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 17:20:54,785 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 17:20:54,785 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:38, output treesize:70 [2018-04-05 17:20:54,834 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 33 treesize of output 28 [2018-04-05 17:20:54,836 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:54,836 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 18 treesize of output 27 [2018-04-05 17:20:54,837 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:54,843 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:54,879 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 65 [2018-04-05 17:20:54,885 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:54,895 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 0 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 54 [2018-04-05 17:20:54,895 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-05 17:20:54,942 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:54,943 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 51 treesize of output 66 [2018-04-05 17:20:54,943 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:54,964 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 17:20:54,986 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2018-04-05 17:20:54,987 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:102, output treesize:115 [2018-04-05 17:20:55,031 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-04-05 17:20:55,031 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:55,054 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:55,055 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:55,055 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 17 treesize of output 10 [2018-04-05 17:20:55,055 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:55,063 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 17:20:55,063 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:139, output treesize:60 [2018-04-05 17:20:55,156 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:55,157 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:55,159 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:55,159 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 52 [2018-04-05 17:20:55,160 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:55,176 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 17:20:55,176 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:74, output treesize:82 [2018-04-05 17:20:55,331 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 75 treesize of output 73 [2018-04-05 17:20:55,333 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 [2018-04-05 17:20:55,333 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:55,343 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:55,362 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 17:20:55,362 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:98, output treesize:85 [2018-04-05 17:20:55,412 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 75 treesize of output 73 [2018-04-05 17:20:55,414 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 [2018-04-05 17:20:55,414 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:55,425 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:55,444 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-05 17:20:55,444 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:98, output treesize:94 [2018-04-05 17:20:55,494 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 65 [2018-04-05 17:20:55,497 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:55,498 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 21 [2018-04-05 17:20:55,498 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:55,514 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:20:55,515 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 15 treesize of output 8 [2018-04-05 17:20:55,515 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:55,522 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 7 treesize of output 1 [2018-04-05 17:20:55,523 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:55,526 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:55,537 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 17:20:55,537 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:103, output treesize:28 [2018-04-05 17:20:55,584 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:20:55,585 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 17:20:56,745 WARN L148 SmtUtils]: Spent 512ms on a formula simplification that was a NOOP. DAG size: 25 [2018-04-05 17:20:57,171 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:57,172 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:57,175 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:57,176 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 292 [2018-04-05 17:20:57,176 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:57,259 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 283 treesize of output 174 [2018-04-05 17:20:57,325 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 11 treesize of output 10 [2018-04-05 17:20:57,326 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:57,362 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 128 treesize of output 122 [2018-04-05 17:20:57,474 WARN L151 SmtUtils]: Spent 108ms on a formula simplification. DAG size of input: 110 DAG size of output 65 [2018-04-05 17:20:57,476 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 63 treesize of output 66 [2018-04-05 17:20:57,479 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:57,479 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 20 treesize of output 28 [2018-04-05 17:20:57,479 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:57,491 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:20:57,535 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 59 [2018-04-05 17:20:57,537 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:57,538 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 50 treesize of output 58 [2018-04-05 17:20:57,538 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:57,563 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:57,577 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 0 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 69 [2018-04-05 17:20:57,578 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-04-05 17:20:57,622 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-05 17:20:57,675 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 53 treesize of output 43 [2018-04-05 17:20:57,679 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:57,679 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:57,682 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:57,699 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 72 [2018-04-05 17:20:57,700 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 3 xjuncts. [2018-04-05 17:20:57,752 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-05 17:20:57,754 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 51 treesize of output 43 [2018-04-05 17:20:57,757 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:57,757 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:57,763 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 33 [2018-04-05 17:20:57,764 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-04-05 17:20:57,778 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 17:20:57,780 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 51 treesize of output 43 [2018-04-05 17:20:57,784 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:57,793 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 38 [2018-04-05 17:20:57,794 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2018-04-05 17:20:57,807 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 17:20:57,886 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 58 treesize of output 54 [2018-04-05 17:20:57,888 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:57,889 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 49 treesize of output 40 [2018-04-05 17:20:57,889 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:57,908 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 20 [2018-04-05 17:20:57,908 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-04-05 17:20:57,925 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:20:57,944 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 69 [2018-04-05 17:20:57,945 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 3 xjuncts. [2018-04-05 17:20:57,976 INFO L267 ElimStorePlain]: Start of recursive call 17: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-05 17:20:58,045 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-04-05 17:20:58,072 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-04-05 17:20:58,110 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2018-04-05 17:20:58,110 INFO L202 ElimStorePlain]: Needed 20 recursive calls to eliminate 8 variables, input treesize:130, output treesize:59 [2018-04-05 17:20:58,393 WARN L151 SmtUtils]: Spent 113ms on a formula simplification. DAG size of input: 49 DAG size of output 45 [2018-04-05 17:20:58,416 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 130 [2018-04-05 17:23:40,006 WARN L151 SmtUtils]: Spent 159080ms on a formula simplification. DAG size of input: 104 DAG size of output 50 [2018-04-05 17:23:46,406 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 92 [2018-04-05 17:23:46,673 WARN L151 SmtUtils]: Spent 265ms on a formula simplification. DAG size of input: 63 DAG size of output 61 [2018-04-05 17:23:46,678 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 11 treesize of output 10 [2018-04-05 17:23:46,678 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 17:23:46,838 INFO L303 Elim1Store]: Index analysis took 116 ms [2018-04-05 17:23:46,896 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 109 treesize of output 127 [2018-04-05 17:23:48,608 WARN L148 SmtUtils]: Spent 1701ms on a formula simplification that was a NOOP. DAG size: 289 [2018-04-05 17:23:48,615 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 103 treesize of output 101 [2018-04-05 17:23:48,620 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:48,621 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 47 treesize of output 52 [2018-04-05 17:23:48,622 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-05 17:23:48,649 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:23:48,655 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 93 treesize of output 91 [2018-04-05 17:23:48,660 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:48,661 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 47 treesize of output 52 [2018-04-05 17:23:48,662 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-05 17:23:48,688 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:23:48,692 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 50 treesize of output 53 [2018-04-05 17:23:48,696 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:48,697 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 20 treesize of output 28 [2018-04-05 17:23:48,697 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-05 17:23:48,718 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:23:49,831 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 70 treesize of output 68 [2018-04-05 17:23:49,836 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:49,837 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 47 treesize of output 52 [2018-04-05 17:23:49,837 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-05 17:23:49,908 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:23:49,912 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 51 treesize of output 54 [2018-04-05 17:23:49,916 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:49,917 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 20 treesize of output 28 [2018-04-05 17:23:49,918 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-05 17:23:49,940 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:23:50,703 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 61 [2018-04-05 17:23:50,706 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:50,707 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 52 treesize of output 60 [2018-04-05 17:23:50,708 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-04-05 17:23:50,744 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:50,758 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 0 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 71 [2018-04-05 17:23:50,764 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-04-05 17:23:50,816 INFO L267 ElimStorePlain]: Start of recursive call 15: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-05 17:23:50,820 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:50,830 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 92 treesize of output 102 [2018-04-05 17:23:50,833 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:50,834 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 93 treesize of output 98 [2018-04-05 17:23:50,835 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-04-05 17:23:50,887 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:50,887 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:50,889 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:50,898 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 90 treesize of output 122 [2018-04-05 17:23:50,899 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 2 xjuncts. [2018-04-05 17:23:50,976 INFO L267 ElimStorePlain]: Start of recursive call 18: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-05 17:23:51,646 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:51,656 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 65 [2018-04-05 17:23:51,662 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:51,663 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:51,665 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:51,685 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 91 [2018-04-05 17:23:51,686 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 2 xjuncts. [2018-04-05 17:23:51,760 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:51,760 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 53 treesize of output 61 [2018-04-05 17:23:51,761 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-04-05 17:23:51,808 INFO L267 ElimStorePlain]: Start of recursive call 21: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-05 17:23:51,814 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 17:23:51,815 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 71 [2018-04-05 17:23:51,820 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:51,822 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 62 [2018-04-05 17:23:51,822 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-04-05 17:23:51,838 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:23:52,885 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 54 treesize of output 51 [2018-04-05 17:23:52,891 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:52,892 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 17 treesize of output 7 [2018-04-05 17:23:52,892 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-04-05 17:23:52,910 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 12 treesize of output 8 [2018-04-05 17:23:52,911 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 17:23:52,923 INFO L267 ElimStorePlain]: Start of recursive call 26: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 17:23:52,927 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 67 treesize of output 59 [2018-04-05 17:23:52,931 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:52,984 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 84 [2018-04-05 17:23:53,432 WARN L151 SmtUtils]: Spent 442ms on a formula simplification. DAG size of input: 140 DAG size of output 117 [2018-04-05 17:23:53,444 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:53,446 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:53,447 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:53,453 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:53,467 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 61 [2018-04-05 17:23:53,469 INFO L267 ElimStorePlain]: Start of recursive call 31: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-04-05 17:23:53,734 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:53,735 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:53,738 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:53,745 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 48 [2018-04-05 17:23:53,746 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-05 17:23:53,952 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:53,953 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:53,956 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:53,962 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 55 [2018-04-05 17:23:53,964 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-05 17:23:54,162 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:54,167 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:54,167 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:54,173 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:54,186 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 68 [2018-04-05 17:23:54,187 INFO L267 ElimStorePlain]: Start of recursive call 34: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-04-05 17:23:54,438 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:54,439 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:54,440 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:54,441 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:54,449 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:54,475 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 93 [2018-04-05 17:23:54,477 INFO L267 ElimStorePlain]: Start of recursive call 35: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-04-05 17:23:54,782 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:54,783 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:54,783 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:54,788 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:54,813 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 80 [2018-04-05 17:23:54,815 INFO L267 ElimStorePlain]: Start of recursive call 36: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-04-05 17:23:55,129 INFO L267 ElimStorePlain]: Start of recursive call 30: 6 dim-1 vars, End of recursive call: 10 dim-0 vars, and 16 xjuncts. [2018-04-05 17:23:55,486 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: 10 dim-0 vars, and 16 xjuncts. [2018-04-05 17:23:55,492 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 54 treesize of output 51 [2018-04-05 17:23:55,499 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:55,500 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 17 treesize of output 7 [2018-04-05 17:23:55,500 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-04-05 17:23:55,519 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 12 treesize of output 8 [2018-04-05 17:23:55,519 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 17:23:55,544 INFO L267 ElimStorePlain]: Start of recursive call 37: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 17:23:55,549 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 56 treesize of output 51 [2018-04-05 17:23:55,553 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:55,554 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:55,555 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:55,555 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:55,556 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2018-04-05 17:23:55,556 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-04-05 17:23:55,594 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 12 treesize of output 8 [2018-04-05 17:23:55,595 INFO L267 ElimStorePlain]: Start of recursive call 42: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 17:23:55,631 INFO L267 ElimStorePlain]: Start of recursive call 40: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 17:23:57,651 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 61 [2018-04-05 17:23:57,657 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 48 treesize of output 44 [2018-04-05 17:23:57,658 INFO L267 ElimStorePlain]: Start of recursive call 44: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 17:23:57,743 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 34 treesize of output 26 [2018-04-05 17:23:57,744 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-04-05 17:23:57,833 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:57,834 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 17:23:57,835 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_arrayElimCell_82 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.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) 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) [2018-04-05 17:23:57,840 INFO L168 Benchmark]: Toolchain (without parser) took 221327.05 ms. Allocated memory was 303.0 MB in the beginning and 784.3 MB in the end (delta: 481.3 MB). Free memory was 239.6 MB in the beginning and 298.4 MB in the end (delta: -58.8 MB). Peak memory consumption was 425.0 MB. Max. memory is 5.3 GB. [2018-04-05 17:23:57,841 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 303.0 MB. Free memory is still 265.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-05 17:23:57,842 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.74 ms. Allocated memory is still 303.0 MB. Free memory was 239.6 MB in the beginning and 213.7 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 5.3 GB. [2018-04-05 17:23:57,842 INFO L168 Benchmark]: Boogie Preprocessor took 62.72 ms. Allocated memory is still 303.0 MB. Free memory was 213.7 MB in the beginning and 210.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 5.3 GB. [2018-04-05 17:23:57,842 INFO L168 Benchmark]: RCFGBuilder took 722.83 ms. Allocated memory was 303.0 MB in the beginning and 463.5 MB in the end (delta: 160.4 MB). Free memory was 210.7 MB in the beginning and 378.8 MB in the end (delta: -168.1 MB). Peak memory consumption was 23.4 MB. Max. memory is 5.3 GB. [2018-04-05 17:23:57,843 INFO L168 Benchmark]: TraceAbstraction took 220169.22 ms. Allocated memory was 463.5 MB in the beginning and 784.3 MB in the end (delta: 320.9 MB). Free memory was 378.8 MB in the beginning and 298.4 MB in the end (delta: 80.3 MB). Peak memory consumption was 403.7 MB. Max. memory is 5.3 GB. [2018-04-05 17:23:57,845 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 303.0 MB. Free memory is still 265.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 367.74 ms. Allocated memory is still 303.0 MB. Free memory was 239.6 MB in the beginning and 213.7 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 62.72 ms. Allocated memory is still 303.0 MB. Free memory was 213.7 MB in the beginning and 210.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 722.83 ms. Allocated memory was 303.0 MB in the beginning and 463.5 MB in the end (delta: 160.4 MB). Free memory was 210.7 MB in the beginning and 378.8 MB in the end (delta: -168.1 MB). Peak memory consumption was 23.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 220169.22 ms. Allocated memory was 463.5 MB in the beginning and 784.3 MB in the end (delta: 320.9 MB). Free memory was 378.8 MB in the beginning and 298.4 MB in the end (delta: 80.3 MB). Peak memory consumption was 403.7 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_82 term size 36 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimCell_82 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/length_test03_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-05_17-23-57-855.csv Received shutdown request...