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_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/memsafety-ext2/length_test03_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d4a2356 [2018-03-23 11:47:09,985 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-23 11:47:09,987 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-23 11:47:10,001 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-23 11:47:10,001 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-23 11:47:10,002 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-23 11:47:10,003 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-23 11:47:10,005 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-23 11:47:10,007 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-23 11:47:10,008 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-23 11:47:10,009 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-23 11:47:10,009 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-23 11:47:10,010 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-23 11:47:10,011 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-23 11:47:10,012 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-23 11:47:10,015 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-23 11:47:10,017 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-23 11:47:10,019 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-23 11:47:10,020 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-23 11:47:10,022 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-23 11:47:10,024 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-23 11:47:10,025 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-23 11:47:10,025 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-23 11:47:10,026 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-23 11:47:10,027 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-23 11:47:10,028 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-23 11:47:10,028 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-23 11:47:10,029 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-23 11:47:10,030 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-23 11:47:10,030 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-23 11:47:10,030 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-23 11:47:10,031 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-03-23 11:47:10,040 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-23 11:47:10,040 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-23 11:47:10,041 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-23 11:47:10,041 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-23 11:47:10,042 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-23 11:47:10,042 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-23 11:47:10,042 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-23 11:47:10,043 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-23 11:47:10,043 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-23 11:47:10,043 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-23 11:47:10,043 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-23 11:47:10,044 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-23 11:47:10,044 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-23 11:47:10,044 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-23 11:47:10,044 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-03-23 11:47:10,044 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-23 11:47:10,045 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-23 11:47:10,045 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-23 11:47:10,045 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-23 11:47:10,045 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-23 11:47:10,046 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-03-23 11:47:10,046 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-23 11:47:10,046 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-23 11:47:10,046 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-23 11:47:10,046 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-23 11:47:10,047 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-23 11:47:10,047 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-23 11:47:10,047 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-23 11:47:10,047 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-03-23 11:47:10,047 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-23 11:47:10,047 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-23 11:47:10,048 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-23 11:47:10,049 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-23 11:47:10,049 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-23 11:47:10,085 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-23 11:47:10,097 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-23 11:47:10,101 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-23 11:47:10,103 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-23 11:47:10,103 INFO L276 PluginConnector]: CDTParser initialized [2018-03-23 11:47:10,104 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 [2018-03-23 11:47:10,402 INFO L228 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG64df29093 [2018-03-23 11:47:10,591 INFO L291 CDTParser]: IsIndexed: true [2018-03-23 11:47:10,591 INFO L292 CDTParser]: Found 1 translation units. [2018-03-23 11:47:10,592 INFO L171 CDTParser]: Scanning length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,602 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-23 11:47:10,603 INFO L215 ultiparseSymbolTable]: [2018-03-23 11:47:10,603 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-23 11:47:10,603 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 [2018-03-23 11:47:10,603 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 [2018-03-23 11:47:10,603 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_flength_test___false_valid_memtrack_i__append ('append') in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,603 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,603 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-23 11:47:10,603 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__gid_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,603 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__off_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,603 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____blkcnt64_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,603 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__ldiv_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,603 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____nlink_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,603 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__u_short in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,604 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____int8_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,604 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 [2018-03-23 11:47:10,604 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____mode_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,604 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____timer_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,604 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____uid_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,604 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__ssize_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,604 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 [2018-03-23 11:47:10,604 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__key_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,604 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____ssize_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,604 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__nlink_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,604 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__fsfilcnt_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,605 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__timer_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,605 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__mode_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,605 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____fsword_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,605 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____u_short in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,605 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__int32_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,605 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____uint64_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,605 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pid_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,605 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____clockid_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,605 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 [2018-03-23 11:47:10,606 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____suseconds_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,606 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__clockid_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,606 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 [2018-03-23 11:47:10,606 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__quad_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,606 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__caddr_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,606 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____fd_mask in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,606 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____id_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,606 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__u_int in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,607 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 [2018-03-23 11:47:10,607 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 [2018-03-23 11:47:10,607 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 [2018-03-23 11:47:10,607 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____int32_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,607 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,607 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____uint32_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,607 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__div_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,607 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__blksize_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,607 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 [2018-03-23 11:47:10,608 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__fsblkcnt_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,608 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__size_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,608 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____pid_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,608 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 [2018-03-23 11:47:10,608 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 [2018-03-23 11:47:10,608 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____intptr_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,608 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 [2018-03-23 11:47:10,609 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____u_char in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,609 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____off64_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,609 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____quad_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,609 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____fsblkcnt64_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,609 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____socklen_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,609 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__lldiv_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,609 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__uid_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,609 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__int16_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,609 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 [2018-03-23 11:47:10,609 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 [2018-03-23 11:47:10,609 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__wchar_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,609 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____rlim_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,610 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____int16_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,610 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 [2018-03-23 11:47:10,610 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__u_char in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,610 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__daddr_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,610 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__blkcnt_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,610 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__sigset_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,610 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____uint16_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,610 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____u_long in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,610 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____gid_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,611 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____ino_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,611 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____loff_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,611 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____ino64_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,611 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____sigset_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,611 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 [2018-03-23 11:47:10,611 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____fsid_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,611 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____dev_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,611 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__ulong in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,611 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__u_long in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,611 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__suseconds_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,612 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__fd_mask in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,612 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__clock_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,612 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____caddr_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,612 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____off_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,612 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__fd_set in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,612 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__dev_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,612 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____rlim64_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,612 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____key_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,612 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__loff_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,613 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__uint in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,613 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____uint8_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,613 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__time_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,613 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 [2018-03-23 11:47:10,613 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____u_int in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,613 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__fsid_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,613 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____qaddr_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,613 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____blkcnt_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,613 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____clock_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,614 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____daddr_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,614 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__id_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,614 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__int64_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,614 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____blksize_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,614 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 [2018-03-23 11:47:10,614 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__ushort in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,614 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 [2018-03-23 11:47:10,614 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 [2018-03-23 11:47:10,614 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____fsfilcnt_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,614 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____time_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,615 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__int8_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,615 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 [2018-03-23 11:47:10,615 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____fsblkcnt_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,615 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__register_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,615 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____int64_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,615 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 [2018-03-23 11:47:10,615 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____fsfilcnt64_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,615 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 [2018-03-23 11:47:10,615 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__ino_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,616 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____useconds_t in length_test03_false-valid-memtrack.i [2018-03-23 11:47:10,634 INFO L334 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG64df29093 [2018-03-23 11:47:10,638 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-23 11:47:10,640 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-23 11:47:10,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-23 11:47:10,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-23 11:47:10,645 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-23 11:47:10,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 11:47:10" (1/1) ... [2018-03-23 11:47:10,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10e90645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:47:10, skipping insertion in model container [2018-03-23 11:47:10,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 11:47:10" (1/1) ... [2018-03-23 11:47:10,663 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-23 11:47:10,695 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-23 11:47:10,886 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-23 11:47:10,940 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-23 11:47:10,947 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 119 non ball SCCs. Number of states in SCCs 119. [2018-03-23 11:47:10,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:47:10 WrapperNode [2018-03-23 11:47:10,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-23 11:47:10,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-23 11:47:10,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-23 11:47:10,998 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-23 11:47:11,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:47:10" (1/1) ... [2018-03-23 11:47:11,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:47:10" (1/1) ... [2018-03-23 11:47:11,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:47:10" (1/1) ... [2018-03-23 11:47:11,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:47:10" (1/1) ... [2018-03-23 11:47:11,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:47:10" (1/1) ... [2018-03-23 11:47:11,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:47:10" (1/1) ... [2018-03-23 11:47:11,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:47:10" (1/1) ... [2018-03-23 11:47:11,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-23 11:47:11,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-23 11:47:11,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-23 11:47:11,058 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-23 11:47:11,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:47:10" (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 [2018-03-23 11:47:11,184 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-23 11:47:11,184 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-23 11:47:11,184 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_flength_test___false_valid_memtrack_i____bswap_32 [2018-03-23 11:47:11,185 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_flength_test___false_valid_memtrack_i____bswap_64 [2018-03-23 11:47:11,185 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_flength_test___false_valid_memtrack_i__append [2018-03-23 11:47:11,185 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-23 11:47:11,185 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-03-23 11:47:11,185 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-03-23 11:47:11,185 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-03-23 11:47:11,186 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-03-23 11:47:11,186 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-03-23 11:47:11,186 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-03-23 11:47:11,186 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-03-23 11:47:11,186 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-03-23 11:47:11,186 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-03-23 11:47:11,187 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-03-23 11:47:11,187 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-03-23 11:47:11,187 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-03-23 11:47:11,187 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-03-23 11:47:11,187 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-03-23 11:47:11,188 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-03-23 11:47:11,188 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-03-23 11:47:11,188 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-03-23 11:47:11,188 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_flength_test___false_valid_memtrack_i____bswap_32 [2018-03-23 11:47:11,188 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_flength_test___false_valid_memtrack_i____bswap_64 [2018-03-23 11:47:11,188 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-03-23 11:47:11,189 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-03-23 11:47:11,189 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-03-23 11:47:11,189 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-03-23 11:47:11,189 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-03-23 11:47:11,189 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-03-23 11:47:11,189 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-03-23 11:47:11,189 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-03-23 11:47:11,189 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-03-23 11:47:11,190 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-03-23 11:47:11,190 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-03-23 11:47:11,190 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-03-23 11:47:11,190 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-03-23 11:47:11,190 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-03-23 11:47:11,190 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-03-23 11:47:11,190 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-03-23 11:47:11,191 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-03-23 11:47:11,191 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-03-23 11:47:11,191 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-03-23 11:47:11,191 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-03-23 11:47:11,191 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-03-23 11:47:11,191 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-03-23 11:47:11,191 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-03-23 11:47:11,191 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-03-23 11:47:11,192 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-03-23 11:47:11,192 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-03-23 11:47:11,192 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-03-23 11:47:11,192 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-03-23 11:47:11,192 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-03-23 11:47:11,192 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-03-23 11:47:11,192 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-03-23 11:47:11,193 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-03-23 11:47:11,193 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-03-23 11:47:11,193 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-03-23 11:47:11,193 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-03-23 11:47:11,193 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-03-23 11:47:11,193 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-03-23 11:47:11,193 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-03-23 11:47:11,193 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-03-23 11:47:11,194 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-03-23 11:47:11,194 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-03-23 11:47:11,194 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-03-23 11:47:11,194 INFO L128 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-03-23 11:47:11,194 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-03-23 11:47:11,194 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-03-23 11:47:11,194 INFO L128 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-03-23 11:47:11,194 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-03-23 11:47:11,195 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-03-23 11:47:11,195 INFO L128 BoogieDeclarations]: Found specification of procedure quick_exit [2018-03-23 11:47:11,195 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-03-23 11:47:11,195 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-03-23 11:47:11,195 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-03-23 11:47:11,195 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-03-23 11:47:11,195 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-03-23 11:47:11,195 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-03-23 11:47:11,196 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-03-23 11:47:11,196 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-03-23 11:47:11,196 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-03-23 11:47:11,196 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-03-23 11:47:11,196 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-03-23 11:47:11,196 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-03-23 11:47:11,196 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-03-23 11:47:11,196 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-03-23 11:47:11,197 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-03-23 11:47:11,197 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-03-23 11:47:11,197 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-03-23 11:47:11,197 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-03-23 11:47:11,197 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-03-23 11:47:11,197 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-03-23 11:47:11,197 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-03-23 11:47:11,197 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-03-23 11:47:11,198 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-03-23 11:47:11,198 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-03-23 11:47:11,198 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-03-23 11:47:11,198 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-03-23 11:47:11,198 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-03-23 11:47:11,198 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-03-23 11:47:11,198 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-03-23 11:47:11,198 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-03-23 11:47:11,199 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-03-23 11:47:11,199 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-03-23 11:47:11,199 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-03-23 11:47:11,199 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-03-23 11:47:11,199 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-03-23 11:47:11,199 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-03-23 11:47:11,199 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-03-23 11:47:11,200 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-03-23 11:47:11,200 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2018-03-23 11:47:11,200 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-03-23 11:47:11,200 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_flength_test___false_valid_memtrack_i__append [2018-03-23 11:47:11,200 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-23 11:47:11,200 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-23 11:47:11,200 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-03-23 11:47:11,200 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-03-23 11:47:11,201 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-23 11:47:11,201 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-23 11:47:11,201 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-23 11:47:11,201 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-23 11:47:11,201 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-23 11:47:11,201 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-23 11:47:11,828 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-23 11:47:11,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 11:47:11 BoogieIcfgContainer [2018-03-23 11:47:11,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-23 11:47:11,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-23 11:47:11,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-23 11:47:11,832 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-23 11:47:11,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.03 11:47:10" (1/3) ... [2018-03-23 11:47:11,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a86ae99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 11:47:11, skipping insertion in model container [2018-03-23 11:47:11,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:47:10" (2/3) ... [2018-03-23 11:47:11,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a86ae99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 11:47:11, skipping insertion in model container [2018-03-23 11:47:11,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 11:47:11" (3/3) ... [2018-03-23 11:47:11,834 INFO L107 eAbstractionObserver]: Analyzing ICFG length_test03_false-valid-memtrack.i [2018-03-23 11:47:11,841 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-23 11:47:11,848 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 55 error locations. [2018-03-23 11:47:11,894 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-23 11:47:11,895 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-23 11:47:11,895 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-23 11:47:11,895 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-23 11:47:11,895 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-23 11:47:11,895 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-23 11:47:11,895 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-23 11:47:11,895 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-23 11:47:11,896 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-23 11:47:11,896 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-23 11:47:11,912 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2018-03-23 11:47:11,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-03-23 11:47:11,917 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:47:11,918 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:47:11,918 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]=== [2018-03-23 11:47:11,922 INFO L82 PathProgramCache]: Analyzing trace with hash -203092121, now seen corresponding path program 1 times [2018-03-23 11:47:11,923 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:47:11,924 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:47:11,963 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:11,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:47:11,963 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:47:12,015 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:47:12,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:47:12,085 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:47:12,085 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-03-23 11:47:12,087 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-23 11:47:12,097 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-23 11:47:12,097 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-23 11:47:12,099 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 4 states. [2018-03-23 11:47:12,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:47:12,438 INFO L93 Difference]: Finished difference Result 354 states and 377 transitions. [2018-03-23 11:47:12,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-23 11:47:12,440 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-03-23 11:47:12,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:47:12,455 INFO L225 Difference]: With dead ends: 354 [2018-03-23 11:47:12,455 INFO L226 Difference]: Without dead ends: 212 [2018-03-23 11:47:12,460 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-23 11:47:12,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2018-03-23 11:47:12,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 164. [2018-03-23 11:47:12,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2018-03-23 11:47:12,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 170 transitions. [2018-03-23 11:47:12,514 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 170 transitions. Word has length 9 [2018-03-23 11:47:12,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:47:12,514 INFO L459 AbstractCegarLoop]: Abstraction has 164 states and 170 transitions. [2018-03-23 11:47:12,514 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-23 11:47:12,515 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 170 transitions. [2018-03-23 11:47:12,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-03-23 11:47:12,515 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:47:12,515 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:47:12,515 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]=== [2018-03-23 11:47:12,515 INFO L82 PathProgramCache]: Analyzing trace with hash -203092120, now seen corresponding path program 1 times [2018-03-23 11:47:12,516 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:47:12,516 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:47:12,516 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:12,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:47:12,517 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:12,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:47:12,534 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:47:12,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:47:12,582 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:47:12,582 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-03-23 11:47:12,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-23 11:47:12,584 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-23 11:47:12,584 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-23 11:47:12,584 INFO L87 Difference]: Start difference. First operand 164 states and 170 transitions. Second operand 4 states. [2018-03-23 11:47:12,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:47:12,739 INFO L93 Difference]: Finished difference Result 169 states and 176 transitions. [2018-03-23 11:47:12,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-23 11:47:12,740 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-03-23 11:47:12,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:47:12,741 INFO L225 Difference]: With dead ends: 169 [2018-03-23 11:47:12,741 INFO L226 Difference]: Without dead ends: 167 [2018-03-23 11:47:12,742 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-23 11:47:12,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-03-23 11:47:12,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 162. [2018-03-23 11:47:12,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2018-03-23 11:47:12,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 168 transitions. [2018-03-23 11:47:12,751 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 168 transitions. Word has length 9 [2018-03-23 11:47:12,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:47:12,752 INFO L459 AbstractCegarLoop]: Abstraction has 162 states and 168 transitions. [2018-03-23 11:47:12,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-23 11:47:12,752 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 168 transitions. [2018-03-23 11:47:12,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-03-23 11:47:12,753 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:47:12,753 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:47:12,753 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]=== [2018-03-23 11:47:12,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1384557355, now seen corresponding path program 1 times [2018-03-23 11:47:12,753 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:47:12,753 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:47:12,754 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:12,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:47:12,754 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:47:12,786 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:47:12,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:47:12,819 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:47:12,819 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-03-23 11:47:12,819 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-23 11:47:12,820 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-23 11:47:12,820 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-23 11:47:12,820 INFO L87 Difference]: Start difference. First operand 162 states and 168 transitions. Second operand 4 states. [2018-03-23 11:47:12,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:47:12,918 INFO L93 Difference]: Finished difference Result 187 states and 195 transitions. [2018-03-23 11:47:12,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-23 11:47:12,918 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-03-23 11:47:12,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:47:12,920 INFO L225 Difference]: With dead ends: 187 [2018-03-23 11:47:12,920 INFO L226 Difference]: Without dead ends: 184 [2018-03-23 11:47:12,920 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-23 11:47:12,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-03-23 11:47:12,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 167. [2018-03-23 11:47:12,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-03-23 11:47:12,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 175 transitions. [2018-03-23 11:47:12,933 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 175 transitions. Word has length 13 [2018-03-23 11:47:12,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:47:12,934 INFO L459 AbstractCegarLoop]: Abstraction has 167 states and 175 transitions. [2018-03-23 11:47:12,934 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-23 11:47:12,934 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 175 transitions. [2018-03-23 11:47:12,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-03-23 11:47:12,934 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:47:12,934 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:47:12,934 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]=== [2018-03-23 11:47:12,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1384557356, now seen corresponding path program 1 times [2018-03-23 11:47:12,935 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:47:12,935 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:47:12,936 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:12,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:47:12,936 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:12,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:47:12,952 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:47:13,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:47:13,032 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:47:13,033 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-03-23 11:47:13,033 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-23 11:47:13,033 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-23 11:47:13,033 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-23 11:47:13,033 INFO L87 Difference]: Start difference. First operand 167 states and 175 transitions. Second operand 4 states. [2018-03-23 11:47:13,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:47:13,142 INFO L93 Difference]: Finished difference Result 172 states and 181 transitions. [2018-03-23 11:47:13,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-23 11:47:13,143 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-03-23 11:47:13,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:47:13,145 INFO L225 Difference]: With dead ends: 172 [2018-03-23 11:47:13,145 INFO L226 Difference]: Without dead ends: 170 [2018-03-23 11:47:13,145 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-23 11:47:13,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-03-23 11:47:13,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 165. [2018-03-23 11:47:13,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-03-23 11:47:13,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 173 transitions. [2018-03-23 11:47:13,156 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 173 transitions. Word has length 13 [2018-03-23 11:47:13,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:47:13,156 INFO L459 AbstractCegarLoop]: Abstraction has 165 states and 173 transitions. [2018-03-23 11:47:13,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-23 11:47:13,157 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 173 transitions. [2018-03-23 11:47:13,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-03-23 11:47:13,157 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:47:13,157 INFO L353 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] [2018-03-23 11:47:13,158 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]=== [2018-03-23 11:47:13,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1217890101, now seen corresponding path program 1 times [2018-03-23 11:47:13,158 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:47:13,158 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:47:13,159 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:13,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:47:13,159 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:47:13,179 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:47:13,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:47:13,218 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:47:13,219 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-03-23 11:47:13,219 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-23 11:47:13,219 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-23 11:47:13,219 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-23 11:47:13,219 INFO L87 Difference]: Start difference. First operand 165 states and 173 transitions. Second operand 4 states. [2018-03-23 11:47:13,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:47:13,327 INFO L93 Difference]: Finished difference Result 165 states and 173 transitions. [2018-03-23 11:47:13,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-23 11:47:13,327 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-03-23 11:47:13,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:47:13,329 INFO L225 Difference]: With dead ends: 165 [2018-03-23 11:47:13,329 INFO L226 Difference]: Without dead ends: 160 [2018-03-23 11:47:13,329 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-23 11:47:13,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2018-03-23 11:47:13,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2018-03-23 11:47:13,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2018-03-23 11:47:13,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 168 transitions. [2018-03-23 11:47:13,337 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 168 transitions. Word has length 25 [2018-03-23 11:47:13,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:47:13,337 INFO L459 AbstractCegarLoop]: Abstraction has 160 states and 168 transitions. [2018-03-23 11:47:13,337 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-23 11:47:13,338 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 168 transitions. [2018-03-23 11:47:13,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-03-23 11:47:13,338 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:47:13,338 INFO L353 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] [2018-03-23 11:47:13,339 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]=== [2018-03-23 11:47:13,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1217890102, now seen corresponding path program 1 times [2018-03-23 11:47:13,339 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:47:13,339 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:47:13,340 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:13,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:47:13,340 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:47:13,359 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:47:13,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:47:13,409 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:47:13,409 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-03-23 11:47:13,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-23 11:47:13,409 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-23 11:47:13,409 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-23 11:47:13,409 INFO L87 Difference]: Start difference. First operand 160 states and 168 transitions. Second operand 4 states. [2018-03-23 11:47:13,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:47:13,484 INFO L93 Difference]: Finished difference Result 160 states and 168 transitions. [2018-03-23 11:47:13,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-23 11:47:13,485 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-03-23 11:47:13,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:47:13,486 INFO L225 Difference]: With dead ends: 160 [2018-03-23 11:47:13,486 INFO L226 Difference]: Without dead ends: 155 [2018-03-23 11:47:13,487 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-23 11:47:13,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2018-03-23 11:47:13,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2018-03-23 11:47:13,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-03-23 11:47:13,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 163 transitions. [2018-03-23 11:47:13,492 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 163 transitions. Word has length 25 [2018-03-23 11:47:13,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:47:13,492 INFO L459 AbstractCegarLoop]: Abstraction has 155 states and 163 transitions. [2018-03-23 11:47:13,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-23 11:47:13,492 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 163 transitions. [2018-03-23 11:47:13,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-03-23 11:47:13,493 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:47:13,493 INFO L353 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] [2018-03-23 11:47:13,493 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]=== [2018-03-23 11:47:13,493 INFO L82 PathProgramCache]: Analyzing trace with hash -900112552, now seen corresponding path program 1 times [2018-03-23 11:47:13,493 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:47:13,493 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:47:13,494 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:13,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:47:13,494 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:47:13,510 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:47:13,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:47:13,619 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:47:13,619 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-03-23 11:47:13,620 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-03-23 11:47:13,620 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-03-23 11:47:13,620 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-03-23 11:47:13,620 INFO L87 Difference]: Start difference. First operand 155 states and 163 transitions. Second operand 8 states. [2018-03-23 11:47:13,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:47:13,932 INFO L93 Difference]: Finished difference Result 296 states and 317 transitions. [2018-03-23 11:47:13,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-23 11:47:13,932 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2018-03-23 11:47:13,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:47:13,933 INFO L225 Difference]: With dead ends: 296 [2018-03-23 11:47:13,934 INFO L226 Difference]: Without dead ends: 288 [2018-03-23 11:47:13,934 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-03-23 11:47:13,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2018-03-23 11:47:13,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 183. [2018-03-23 11:47:13,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2018-03-23 11:47:13,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 203 transitions. [2018-03-23 11:47:13,941 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 203 transitions. Word has length 26 [2018-03-23 11:47:13,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:47:13,941 INFO L459 AbstractCegarLoop]: Abstraction has 183 states and 203 transitions. [2018-03-23 11:47:13,941 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-03-23 11:47:13,941 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 203 transitions. [2018-03-23 11:47:13,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-03-23 11:47:13,941 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:47:13,942 INFO L353 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] [2018-03-23 11:47:13,942 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]=== [2018-03-23 11:47:13,942 INFO L82 PathProgramCache]: Analyzing trace with hash -900112551, now seen corresponding path program 1 times [2018-03-23 11:47:13,942 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:47:13,942 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:47:13,943 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:13,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:47:13,943 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:47:13,960 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:47:14,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:47:14,147 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:47:14,148 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-03-23 11:47:14,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-23 11:47:14,148 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-23 11:47:14,148 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-03-23 11:47:14,148 INFO L87 Difference]: Start difference. First operand 183 states and 203 transitions. Second operand 9 states. [2018-03-23 11:47:14,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:47:14,456 INFO L93 Difference]: Finished difference Result 272 states and 287 transitions. [2018-03-23 11:47:14,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-03-23 11:47:14,457 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-03-23 11:47:14,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:47:14,459 INFO L225 Difference]: With dead ends: 272 [2018-03-23 11:47:14,459 INFO L226 Difference]: Without dead ends: 263 [2018-03-23 11:47:14,460 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2018-03-23 11:47:14,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2018-03-23 11:47:14,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 230. [2018-03-23 11:47:14,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2018-03-23 11:47:14,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 262 transitions. [2018-03-23 11:47:14,471 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 262 transitions. Word has length 26 [2018-03-23 11:47:14,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:47:14,472 INFO L459 AbstractCegarLoop]: Abstraction has 230 states and 262 transitions. [2018-03-23 11:47:14,472 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-23 11:47:14,472 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 262 transitions. [2018-03-23 11:47:14,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-03-23 11:47:14,473 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:47:14,473 INFO L353 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] [2018-03-23 11:47:14,473 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]=== [2018-03-23 11:47:14,474 INFO L82 PathProgramCache]: Analyzing trace with hash 572985994, now seen corresponding path program 1 times [2018-03-23 11:47:14,474 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:47:14,474 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:47:14,475 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:14,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:47:14,475 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:47:14,497 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:47:14,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:47:14,695 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:47:14,695 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-03-23 11:47:14,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-03-23 11:47:14,695 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-03-23 11:47:14,695 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-03-23 11:47:14,696 INFO L87 Difference]: Start difference. First operand 230 states and 262 transitions. Second operand 10 states. [2018-03-23 11:47:15,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:47:15,034 INFO L93 Difference]: Finished difference Result 470 states and 538 transitions. [2018-03-23 11:47:15,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-23 11:47:15,035 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 38 [2018-03-23 11:47:15,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:47:15,037 INFO L225 Difference]: With dead ends: 470 [2018-03-23 11:47:15,037 INFO L226 Difference]: Without dead ends: 255 [2018-03-23 11:47:15,039 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2018-03-23 11:47:15,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2018-03-23 11:47:15,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 243. [2018-03-23 11:47:15,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2018-03-23 11:47:15,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 276 transitions. [2018-03-23 11:47:15,059 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 276 transitions. Word has length 38 [2018-03-23 11:47:15,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:47:15,060 INFO L459 AbstractCegarLoop]: Abstraction has 243 states and 276 transitions. [2018-03-23 11:47:15,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-03-23 11:47:15,060 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 276 transitions. [2018-03-23 11:47:15,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-03-23 11:47:15,061 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:47:15,061 INFO L353 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] [2018-03-23 11:47:15,061 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]=== [2018-03-23 11:47:15,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1111040505, now seen corresponding path program 1 times [2018-03-23 11:47:15,062 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:47:15,062 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:47:15,062 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:15,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:47:15,063 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:47:15,088 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:47:15,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:47:15,773 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:47:15,773 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-03-23 11:47:15,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-03-23 11:47:15,774 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-03-23 11:47:15,774 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2018-03-23 11:47:15,774 INFO L87 Difference]: Start difference. First operand 243 states and 276 transitions. Second operand 19 states. [2018-03-23 11:47:16,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:47:16,651 INFO L93 Difference]: Finished difference Result 536 states and 621 transitions. [2018-03-23 11:47:16,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-03-23 11:47:16,651 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 40 [2018-03-23 11:47:16,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:47:16,653 INFO L225 Difference]: With dead ends: 536 [2018-03-23 11:47:16,653 INFO L226 Difference]: Without dead ends: 321 [2018-03-23 11:47:16,656 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=165, Invalid=705, Unknown=0, NotChecked=0, Total=870 [2018-03-23 11:47:16,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2018-03-23 11:47:16,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 198. [2018-03-23 11:47:16,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2018-03-23 11:47:16,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 211 transitions. [2018-03-23 11:47:16,668 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 211 transitions. Word has length 40 [2018-03-23 11:47:16,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:47:16,668 INFO L459 AbstractCegarLoop]: Abstraction has 198 states and 211 transitions. [2018-03-23 11:47:16,668 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-03-23 11:47:16,668 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 211 transitions. [2018-03-23 11:47:16,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-03-23 11:47:16,670 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:47:16,670 INFO L353 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] [2018-03-23 11:47:16,670 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]=== [2018-03-23 11:47:16,670 INFO L82 PathProgramCache]: Analyzing trace with hash -2010604953, now seen corresponding path program 1 times [2018-03-23 11:47:16,670 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:47:16,671 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:47:16,671 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:16,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:47:16,672 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:16,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:47:16,690 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:47:16,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:47:16,722 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:47:16,722 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-03-23 11:47:16,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-03-23 11:47:16,723 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-03-23 11:47:16,723 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-23 11:47:16,723 INFO L87 Difference]: Start difference. First operand 198 states and 211 transitions. Second operand 3 states. [2018-03-23 11:47:16,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:47:16,751 INFO L93 Difference]: Finished difference Result 281 states and 297 transitions. [2018-03-23 11:47:16,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-23 11:47:16,751 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2018-03-23 11:47:16,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:47:16,753 INFO L225 Difference]: With dead ends: 281 [2018-03-23 11:47:16,753 INFO L226 Difference]: Without dead ends: 211 [2018-03-23 11:47:16,754 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-23 11:47:16,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2018-03-23 11:47:16,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 192. [2018-03-23 11:47:16,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2018-03-23 11:47:16,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 202 transitions. [2018-03-23 11:47:16,766 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 202 transitions. Word has length 51 [2018-03-23 11:47:16,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:47:16,766 INFO L459 AbstractCegarLoop]: Abstraction has 192 states and 202 transitions. [2018-03-23 11:47:16,766 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-03-23 11:47:16,766 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 202 transitions. [2018-03-23 11:47:16,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-03-23 11:47:16,768 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:47:16,768 INFO L353 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] [2018-03-23 11:47:16,768 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]=== [2018-03-23 11:47:16,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1142640021, now seen corresponding path program 1 times [2018-03-23 11:47:16,769 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:47:16,769 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:47:16,770 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:16,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:47:16,770 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:47:16,805 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:47:16,994 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:47:16,994 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-03-23 11:47:16,994 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-03-23 11:47:17,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:47:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:47:17,053 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-23 11:47:17,268 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 [2018-03-23 11:47:17,269 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:17,282 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. [2018-03-23 11:47:17,282 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:11 [2018-03-23 11:47:17,295 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 [2018-03-23 11:47:17,296 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:17,305 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:17,306 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-03-23 11:47:17,366 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:47:17,402 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-23 11:47:17,403 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2018-03-23 11:47:17,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-23 11:47:17,404 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-23 11:47:17,404 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=193, Unknown=6, NotChecked=0, Total=240 [2018-03-23 11:47:17,404 INFO L87 Difference]: Start difference. First operand 192 states and 202 transitions. Second operand 16 states. [2018-03-23 11:47:18,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:47:18,118 INFO L93 Difference]: Finished difference Result 237 states and 248 transitions. [2018-03-23 11:47:18,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-03-23 11:47:18,118 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 57 [2018-03-23 11:47:18,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:47:18,119 INFO L225 Difference]: With dead ends: 237 [2018-03-23 11:47:18,120 INFO L226 Difference]: Without dead ends: 234 [2018-03-23 11:47:18,120 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 51 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=399, Unknown=7, NotChecked=0, Total=506 [2018-03-23 11:47:18,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2018-03-23 11:47:18,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 193. [2018-03-23 11:47:18,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2018-03-23 11:47:18,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 205 transitions. [2018-03-23 11:47:18,131 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 205 transitions. Word has length 57 [2018-03-23 11:47:18,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:47:18,131 INFO L459 AbstractCegarLoop]: Abstraction has 193 states and 205 transitions. [2018-03-23 11:47:18,131 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-23 11:47:18,131 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 205 transitions. [2018-03-23 11:47:18,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-03-23 11:47:18,132 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:47:18,132 INFO L353 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] [2018-03-23 11:47:18,133 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]=== [2018-03-23 11:47:18,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1142640022, now seen corresponding path program 1 times [2018-03-23 11:47:18,133 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:47:18,133 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:47:18,134 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:18,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:47:18,134 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:18,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:47:18,162 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:47:18,379 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:47:18,380 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-03-23 11:47:18,380 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-03-23 11:47:18,388 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:47:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:47:18,425 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-23 11:47:18,545 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 [2018-03-23 11:47:18,575 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 [2018-03-23 11:47:18,577 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-03-23 11:47:18,585 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. [2018-03-23 11:47:18,586 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:19 [2018-03-23 11:47:18,732 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 [2018-03-23 11:47:18,733 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 4 xjuncts. [2018-03-23 11:47:18,808 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. [2018-03-23 11:47:18,808 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:24 [2018-03-23 11:47:18,847 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2018-03-23 11:47:18,869 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-23 11:47:18,869 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2018-03-23 11:47:18,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-03-23 11:47:18,869 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-03-23 11:47:18,870 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=367, Unknown=1, NotChecked=38, Total=462 [2018-03-23 11:47:18,870 INFO L87 Difference]: Start difference. First operand 193 states and 205 transitions. Second operand 22 states. [2018-03-23 11:47:20,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:47:20,273 INFO L93 Difference]: Finished difference Result 281 states and 296 transitions. [2018-03-23 11:47:20,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-03-23 11:47:20,273 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 57 [2018-03-23 11:47:20,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:47:20,275 INFO L225 Difference]: With dead ends: 281 [2018-03-23 11:47:20,275 INFO L226 Difference]: Without dead ends: 273 [2018-03-23 11:47:20,276 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 49 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=167, Invalid=1026, Unknown=1, NotChecked=66, Total=1260 [2018-03-23 11:47:20,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2018-03-23 11:47:20,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 232. [2018-03-23 11:47:20,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2018-03-23 11:47:20,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 249 transitions. [2018-03-23 11:47:20,292 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 249 transitions. Word has length 57 [2018-03-23 11:47:20,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:47:20,293 INFO L459 AbstractCegarLoop]: Abstraction has 232 states and 249 transitions. [2018-03-23 11:47:20,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-03-23 11:47:20,293 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 249 transitions. [2018-03-23 11:47:20,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-03-23 11:47:20,294 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:47:20,294 INFO L353 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] [2018-03-23 11:47:20,294 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]=== [2018-03-23 11:47:20,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1568270471, now seen corresponding path program 1 times [2018-03-23 11:47:20,295 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:47:20,295 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:47:20,296 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:20,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:47:20,296 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:47:20,326 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:47:21,141 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:47:21,142 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-03-23 11:47:21,142 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-03-23 11:47:21,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:47:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:47:21,188 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-23 11:47:21,262 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 [2018-03-23 11:47:21,263 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:21,268 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:21,268 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2018-03-23 11:47:21,488 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 [2018-03-23 11:47:21,490 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 [2018-03-23 11:47:21,491 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:21,492 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:21,497 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:21,497 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2018-03-23 11:47:21,540 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 [2018-03-23 11:47:21,545 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 [2018-03-23 11:47:21,545 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:21,575 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 [2018-03-23 11:47:21,575 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-03-23 11:47:21,586 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-23 11:47:21,599 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-23 11:47:21,600 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:38, output treesize:70 [2018-03-23 11:47:21,677 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 [2018-03-23 11:47:21,682 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:21,683 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 61 treesize of output 76 [2018-03-23 11:47:21,683 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:21,714 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:21,723 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 43 treesize of output 54 [2018-03-23 11:47:21,724 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-03-23 11:47:21,744 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-23 11:47:21,772 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 [2018-03-23 11:47:21,777 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:21,778 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 [2018-03-23 11:47:21,778 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:21,784 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:21,806 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. [2018-03-23 11:47:21,806 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:102, output treesize:115 [2018-03-23 11:47:21,910 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:21,916 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:21,917 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 66 treesize of output 60 [2018-03-23 11:47:21,917 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:21,951 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. [2018-03-23 11:47:21,951 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:139, output treesize:60 [2018-03-23 11:47:22,116 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:22,116 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:22,117 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:22,118 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 58 [2018-03-23 11:47:22,119 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:22,136 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. [2018-03-23 11:47:22,136 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:74, output treesize:82 [2018-03-23 11:47:22,321 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 [2018-03-23 11:47:22,323 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 [2018-03-23 11:47:22,324 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:22,333 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:22,350 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. [2018-03-23 11:47:22,350 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:98, output treesize:85 [2018-03-23 11:47:22,408 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 [2018-03-23 11:47:22,411 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 [2018-03-23 11:47:22,411 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:22,421 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:22,437 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. [2018-03-23 11:47:22,437 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:98, output treesize:94 [2018-03-23 11:47:22,515 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 [2018-03-23 11:47:22,522 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 [2018-03-23 11:47:22,523 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:22,541 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:22,541 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 [2018-03-23 11:47:22,542 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:22,550 INFO L682 Elim1Store]: detected equality via solver [2018-03-23 11:47:22,551 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 [2018-03-23 11:47:22,551 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:22,555 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:22,566 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. [2018-03-23 11:47:22,566 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:103, output treesize:28 [2018-03-23 11:47:22,641 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:47:22,663 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-23 11:47:22,663 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23] total 43 [2018-03-23 11:47:22,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-03-23 11:47:22,664 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-03-23 11:47:22,664 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=1744, Unknown=0, NotChecked=0, Total=1892 [2018-03-23 11:47:22,664 INFO L87 Difference]: Start difference. First operand 232 states and 249 transitions. Second operand 44 states. [2018-03-23 11:47:24,440 WARN L151 SmtUtils]: Spent 104ms on a formula simplification. DAG size of input: 125 DAG size of output 73 [2018-03-23 11:47:26,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:47:26,298 INFO L93 Difference]: Finished difference Result 328 states and 351 transitions. [2018-03-23 11:47:26,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-03-23 11:47:26,299 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 66 [2018-03-23 11:47:26,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:47:26,301 INFO L225 Difference]: With dead ends: 328 [2018-03-23 11:47:26,301 INFO L226 Difference]: Without dead ends: 327 [2018-03-23 11:47:26,303 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 46 SyntacticMatches, 3 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1481 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=648, Invalid=4754, Unknown=0, NotChecked=0, Total=5402 [2018-03-23 11:47:26,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2018-03-23 11:47:26,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 241. [2018-03-23 11:47:26,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2018-03-23 11:47:26,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 256 transitions. [2018-03-23 11:47:26,315 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 256 transitions. Word has length 66 [2018-03-23 11:47:26,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:47:26,315 INFO L459 AbstractCegarLoop]: Abstraction has 241 states and 256 transitions. [2018-03-23 11:47:26,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-03-23 11:47:26,316 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 256 transitions. [2018-03-23 11:47:26,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-03-23 11:47:26,316 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:47:26,317 INFO L353 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] [2018-03-23 11:47:26,317 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]=== [2018-03-23 11:47:26,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1568270470, now seen corresponding path program 1 times [2018-03-23 11:47:26,317 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:47:26,317 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:47:26,318 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:26,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:47:26,318 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:47:26,367 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:47:27,241 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:47:27,241 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-03-23 11:47:27,241 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-03-23 11:47:27,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:47:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:47:27,284 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-23 11:47:27,351 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 [2018-03-23 11:47:27,351 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:27,356 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:27,356 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2018-03-23 11:47:27,437 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 [2018-03-23 11:47:27,437 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:27,441 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:27,442 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:17 [2018-03-23 11:47:27,513 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 [2018-03-23 11:47:27,514 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 [2018-03-23 11:47:27,515 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:27,516 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:27,536 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 [2018-03-23 11:47:27,538 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 [2018-03-23 11:47:27,538 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:27,539 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:27,545 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:27,545 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:42, output treesize:34 [2018-03-23 11:47:27,610 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 [2018-03-23 11:47:27,620 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 [2018-03-23 11:47:27,621 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-23 11:47:27,641 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 20 treesize of output 19 [2018-03-23 11:47:27,641 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:27,655 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-23 11:47:27,700 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 [2018-03-23 11:47:27,703 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 [2018-03-23 11:47:27,703 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:27,725 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 [2018-03-23 11:47:27,726 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-03-23 11:47:27,739 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-23 11:47:27,763 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-03-23 11:47:27,763 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 2 variables, input treesize:60, output treesize:203 [2018-03-23 11:47:27,857 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 72 treesize of output 67 [2018-03-23 11:47:27,865 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:27,866 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 [2018-03-23 11:47:27,866 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:27,884 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:27,944 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 68 treesize of output 63 [2018-03-23 11:47:27,947 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:27,948 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 [2018-03-23 11:47:27,948 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:27,964 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:28,033 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 162 treesize of output 151 [2018-03-23 11:47:28,043 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:28,044 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 155 treesize of output 182 [2018-03-23 11:47:28,045 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:28,117 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:28,127 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 1 new quantified variables, introduced 3 case distinctions, treesize of input 138 treesize of output 146 [2018-03-23 11:47:28,128 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-03-23 11:47:28,195 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-23 11:47:28,284 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 152 treesize of output 152 [2018-03-23 11:47:28,289 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:28,290 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 145 treesize of output 172 [2018-03-23 11:47:28,290 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:28,356 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:28,368 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 132 treesize of output 150 [2018-03-23 11:47:28,370 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-03-23 11:47:28,410 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-23 11:47:28,413 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 117 treesize of output 98 [2018-03-23 11:47:28,416 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:28,416 INFO L682 Elim1Store]: detected equality via solver [2018-03-23 11:47:28,419 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 54 [2018-03-23 11:47:28,419 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:28,435 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:28,494 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-03-23 11:47:28,494 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 4 variables, input treesize:235, output treesize:267 [2018-03-23 11:47:28,586 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-03-23 11:47:28,587 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:28,630 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:28,631 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:28,632 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 [2018-03-23 11:47:28,632 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:28,653 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:28,653 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:291, output treesize:144 [2018-03-23 11:47:28,827 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 37 treesize of output 26 [2018-03-23 11:47:28,828 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:28,849 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:28,850 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:28,851 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 [2018-03-23 11:47:28,851 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:28,869 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. [2018-03-23 11:47:28,869 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:158, output treesize:141 [2018-03-23 11:47:29,132 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 118 treesize of output 148 [2018-03-23 11:47:29,137 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 139 treesize of output 138 [2018-03-23 11:47:29,138 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:29,210 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:29,230 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 4 case distinctions, treesize of input 108 treesize of output 159 [2018-03-23 11:47:29,231 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 4 xjuncts. [2018-03-23 11:47:29,318 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-03-23 11:47:29,389 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 143 treesize of output 128 [2018-03-23 11:47:29,392 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:29,393 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:29,393 INFO L682 Elim1Store]: detected equality via solver [2018-03-23 11:47:29,396 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 37 treesize of output 78 [2018-03-23 11:47:29,396 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:29,413 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:29,440 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 148 treesize of output 159 [2018-03-23 11:47:29,444 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 159 treesize of output 158 [2018-03-23 11:47:29,445 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:29,517 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:29,532 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 4 case distinctions, treesize of input 117 treesize of output 168 [2018-03-23 11:47:29,533 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 4 xjuncts. [2018-03-23 11:47:29,603 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-03-23 11:47:29,611 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 143 treesize of output 128 [2018-03-23 11:47:29,615 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:29,615 INFO L682 Elim1Store]: detected equality via solver [2018-03-23 11:47:29,617 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 37 treesize of output 64 [2018-03-23 11:47:29,618 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:29,634 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:29,703 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 3 xjuncts. [2018-03-23 11:47:29,704 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 5 variables, input treesize:170, output treesize:327 [2018-03-23 11:47:29,882 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 170 treesize of output 186 [2018-03-23 11:47:29,886 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:29,889 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 160 treesize of output 183 [2018-03-23 11:47:29,889 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:29,969 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 167 treesize of output 166 [2018-03-23 11:47:29,969 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:30,018 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:30,185 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 141 [2018-03-23 11:47:30,188 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:30,188 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 36 treesize of output 63 [2018-03-23 11:47:30,188 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:30,207 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:30,345 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 145 treesize of output 128 [2018-03-23 11:47:30,348 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:30,374 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 36 treesize of output 63 [2018-03-23 11:47:30,374 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:30,391 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:30,511 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 166 treesize of output 173 [2018-03-23 11:47:30,515 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 173 treesize of output 172 [2018-03-23 11:47:30,515 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:30,628 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:30,707 INFO L682 Elim1Store]: detected equality via solver [2018-03-23 11:47:30,709 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 141 [2018-03-23 11:47:30,711 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 36 treesize of output 21 [2018-03-23 11:47:30,711 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:30,726 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:30,797 INFO L682 Elim1Store]: detected equality via solver [2018-03-23 11:47:30,798 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 124 treesize of output 107 [2018-03-23 11:47:30,801 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 36 treesize of output 21 [2018-03-23 11:47:30,802 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:30,823 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:30,892 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 6 dim-2 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2018-03-23 11:47:30,893 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 11 variables, input treesize:481, output treesize:391 [2018-03-23 11:47:31,073 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 102 [2018-03-23 11:47:31,075 INFO L682 Elim1Store]: detected equality via solver [2018-03-23 11:47:31,076 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 44 treesize of output 32 [2018-03-23 11:47:31,076 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:31,091 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2018-03-23 11:47:31,092 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:31,116 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:31,159 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 63 treesize of output 53 [2018-03-23 11:47:31,167 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 1 [2018-03-23 11:47:31,167 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:31,178 INFO L682 Elim1Store]: detected equality via solver [2018-03-23 11:47:31,179 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2018-03-23 11:47:31,179 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:31,188 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:31,221 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 153 treesize of output 133 [2018-03-23 11:47:31,223 INFO L682 Elim1Store]: detected equality via solver [2018-03-23 11:47:31,223 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 84 treesize of output 60 [2018-03-23 11:47:31,224 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:31,242 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:31,243 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2018-03-23 11:47:31,243 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:31,257 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:31,283 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 67 [2018-03-23 11:47:31,285 INFO L682 Elim1Store]: detected equality via solver [2018-03-23 11:47:31,286 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 25 treesize of output 17 [2018-03-23 11:47:31,286 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:31,298 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:31,299 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 [2018-03-23 11:47:31,299 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:31,308 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:31,328 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:31,328 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 10 variables, input treesize:265, output treesize:14 [2018-03-23 11:47:31,396 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:47:31,419 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-23 11:47:31,419 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 23] total 42 [2018-03-23 11:47:31,419 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-03-23 11:47:31,419 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-03-23 11:47:31,420 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1679, Unknown=0, NotChecked=0, Total=1806 [2018-03-23 11:47:31,420 INFO L87 Difference]: Start difference. First operand 241 states and 256 transitions. Second operand 43 states. [2018-03-23 11:47:32,525 WARN L151 SmtUtils]: Spent 162ms on a formula simplification. DAG size of input: 116 DAG size of output 96 [2018-03-23 11:47:33,418 WARN L151 SmtUtils]: Spent 115ms on a formula simplification. DAG size of input: 188 DAG size of output 91 [2018-03-23 11:47:33,785 WARN L151 SmtUtils]: Spent 113ms on a formula simplification. DAG size of input: 205 DAG size of output 71 [2018-03-23 11:47:34,024 WARN L151 SmtUtils]: Spent 130ms on a formula simplification. DAG size of input: 193 DAG size of output 96 [2018-03-23 11:47:34,398 WARN L151 SmtUtils]: Spent 106ms on a formula simplification. DAG size of input: 86 DAG size of output 47 [2018-03-23 11:47:35,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:47:35,508 INFO L93 Difference]: Finished difference Result 325 states and 348 transitions. [2018-03-23 11:47:35,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-03-23 11:47:35,508 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 66 [2018-03-23 11:47:35,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:47:35,510 INFO L225 Difference]: With dead ends: 325 [2018-03-23 11:47:35,510 INFO L226 Difference]: Without dead ends: 324 [2018-03-23 11:47:35,511 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1094 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=544, Invalid=4286, Unknown=0, NotChecked=0, Total=4830 [2018-03-23 11:47:35,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2018-03-23 11:47:35,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 241. [2018-03-23 11:47:35,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2018-03-23 11:47:35,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 255 transitions. [2018-03-23 11:47:35,527 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 255 transitions. Word has length 66 [2018-03-23 11:47:35,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:47:35,527 INFO L459 AbstractCegarLoop]: Abstraction has 241 states and 255 transitions. [2018-03-23 11:47:35,527 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-03-23 11:47:35,527 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 255 transitions. [2018-03-23 11:47:35,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-03-23 11:47:35,528 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:47:35,528 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:47:35,528 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]=== [2018-03-23 11:47:35,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1481863865, now seen corresponding path program 1 times [2018-03-23 11:47:35,529 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:47:35,529 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:47:35,529 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:35,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:47:35,529 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:47:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:47:35,555 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:47:36,355 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:47:36,355 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-03-23 11:47:36,355 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-03-23 11:47:36,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:47:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:47:36,392 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-23 11:47:36,396 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:36,397 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:36,397 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 [2018-03-23 11:47:36,397 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:36,398 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:36,398 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2018-03-23 11:47:36,403 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-03-23 11:47:36,404 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 [2018-03-23 11:47:36,404 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:36,406 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:36,412 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-03-23 11:47:36,414 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 8 treesize of output 7 [2018-03-23 11:47:36,414 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:36,415 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:36,420 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:36,420 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:32, output treesize:24 [2018-03-23 11:47:36,427 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-03-23 11:47:36,429 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:36,430 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 [2018-03-23 11:47:36,430 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:36,434 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:36,446 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-03-23 11:47:36,449 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:36,450 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 [2018-03-23 11:47:36,450 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:36,454 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:36,462 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:36,462 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:50, output treesize:42 [2018-03-23 11:47:36,732 WARN L1033 $PredicateComparison]: unable to prove that (exists ((__U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base Int) (__U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.offset Int) (__U_MULTI_flength_test___false_valid_memtrack_i__append_~head.offset Int)) (let ((.cse1 (+ __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.offset 1)) (.cse2 (+ __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.offset 5)) (.cse3 (+ __U_MULTI_flength_test___false_valid_memtrack_i__append_~head.offset 4))) (and (= |c_#memory_$Pointer$.base| (let ((.cse0 (store |c_old(#memory_$Pointer$.base)| |c___U_MULTI_flength_test___false_valid_memtrack_i__append_#in~head.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c___U_MULTI_flength_test___false_valid_memtrack_i__append_#in~head.base|) __U_MULTI_flength_test___false_valid_memtrack_i__append_~head.offset __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base) .cse3 __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base)))) (store .cse0 __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base (store (store (select .cse0 __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base) .cse1 0) .cse2 0)))) (= (select |c_old(#valid)| __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base) 0) (= (let ((.cse4 (store |c_old(#memory_$Pointer$.offset)| |c___U_MULTI_flength_test___false_valid_memtrack_i__append_#in~head.base| (store (store (select |c_old(#memory_$Pointer$.offset)| |c___U_MULTI_flength_test___false_valid_memtrack_i__append_#in~head.base|) __U_MULTI_flength_test___false_valid_memtrack_i__append_~head.offset __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.offset) .cse3 __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.offset)))) (store .cse4 __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base (store (store (select .cse4 __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base) .cse1 0) .cse2 0))) |c_#memory_$Pointer$.offset|)))) is different from true [2018-03-23 11:47:36,883 WARN L148 SmtUtils]: Spent 145ms on a formula simplification that was a NOOP. DAG size: 70 [2018-03-23 11:47:36,890 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:36,893 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:36,894 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-03-23 11:47:36,894 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:37,045 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 52 treesize of output 60 [2018-03-23 11:47:37,048 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-03-23 11:47:37,052 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:37,052 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 [2018-03-23 11:47:37,053 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:37,060 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:37,102 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 60 [2018-03-23 11:47:37,105 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 15 treesize of output 18 [2018-03-23 11:47:37,109 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:37,110 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 [2018-03-23 11:47:37,110 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:37,123 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:37,140 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:37,159 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:37,168 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 61 [2018-03-23 11:47:37,171 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 38 treesize of output 37 [2018-03-23 11:47:37,175 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:37,176 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 37 treesize of output 41 [2018-03-23 11:47:37,176 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:37,185 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:37,219 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 51 treesize of output 48 [2018-03-23 11:47:37,223 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:37,237 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 50 [2018-03-23 11:47:37,240 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-03-23 11:47:37,240 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:37,277 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:37,281 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:37,299 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 30 treesize of output 55 [2018-03-23 11:47:37,300 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2018-03-23 11:47:37,350 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:37,350 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:37,351 INFO L682 Elim1Store]: detected equality via solver [2018-03-23 11:47:37,353 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 30 treesize of output 47 [2018-03-23 11:47:37,353 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:37,398 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:37,399 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:37,400 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:37,403 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 30 treesize of output 55 [2018-03-23 11:47:37,403 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:37,448 INFO L267 ElimStorePlain]: Start of recursive call 13: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-03-23 11:47:37,493 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-03-23 11:47:37,575 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-03-23 11:47:37,729 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 52 treesize of output 60 [2018-03-23 11:47:37,733 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-03-23 11:47:37,736 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:37,736 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2018-03-23 11:47:37,737 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:37,743 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:37,763 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 60 [2018-03-23 11:47:37,765 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 15 treesize of output 18 [2018-03-23 11:47:37,767 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:37,768 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 [2018-03-23 11:47:37,768 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:37,773 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:37,786 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:37,798 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:37,805 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 61 [2018-03-23 11:47:37,809 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 37 [2018-03-23 11:47:37,813 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:37,814 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 37 treesize of output 41 [2018-03-23 11:47:37,814 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:37,830 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:37,850 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 51 treesize of output 48 [2018-03-23 11:47:37,853 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:37,866 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 50 [2018-03-23 11:47:37,869 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:37,870 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:37,871 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:37,873 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 36 treesize of output 61 [2018-03-23 11:47:37,873 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:37,927 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:37,929 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:37,946 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 30 treesize of output 55 [2018-03-23 11:47:37,946 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 2 xjuncts. [2018-03-23 11:47:37,982 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:37,982 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:37,983 INFO L682 Elim1Store]: detected equality via solver [2018-03-23 11:47:37,985 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 30 treesize of output 47 [2018-03-23 11:47:37,985 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:38,014 INFO L267 ElimStorePlain]: Start of recursive call 28: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-03-23 11:47:38,044 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-03-23 11:47:38,084 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-03-23 11:47:38,192 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 24 dim-0 vars, and 12 xjuncts. [2018-03-23 11:47:38,193 INFO L202 ElimStorePlain]: Needed 31 recursive calls to eliminate 7 variables, input treesize:135, output treesize:1536 [2018-03-23 11:47:55,144 WARN L151 SmtUtils]: Spent 14582ms on a formula simplification. DAG size of input: 330 DAG size of output 35 [2018-03-23 11:47:55,306 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 [2018-03-23 11:47:55,308 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:55,309 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 [2018-03-23 11:47:55,309 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:55,317 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:55,318 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 [2018-03-23 11:47:55,318 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:55,321 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:55,331 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 [2018-03-23 11:47:55,343 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:55,344 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 [2018-03-23 11:47:55,344 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:55,350 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:47:55,351 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 [2018-03-23 11:47:55,351 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-23 11:47:55,353 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:55,356 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:47:55,356 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:83, output treesize:7 [2018-03-23 11:47:55,442 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:47:55,462 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-23 11:47:55,462 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20] total 33 [2018-03-23 11:47:55,462 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-03-23 11:47:55,463 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-03-23 11:47:55,463 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=894, Unknown=16, NotChecked=60, Total=1056 [2018-03-23 11:47:55,463 INFO L87 Difference]: Start difference. First operand 241 states and 255 transitions. Second operand 33 states. [2018-03-23 11:47:57,074 WARN L148 SmtUtils]: Spent 179ms on a formula simplification that was a NOOP. DAG size: 67 [2018-03-23 11:48:00,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:48:00,491 INFO L93 Difference]: Finished difference Result 471 states and 504 transitions. [2018-03-23 11:48:00,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-03-23 11:48:00,491 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 69 [2018-03-23 11:48:00,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:48:00,493 INFO L225 Difference]: With dead ends: 471 [2018-03-23 11:48:00,493 INFO L226 Difference]: Without dead ends: 335 [2018-03-23 11:48:00,494 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 60 SyntacticMatches, 3 SemanticMatches, 51 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 19.9s TimeCoverageRelationStatistics Valid=307, Invalid=2281, Unknown=68, NotChecked=100, Total=2756 [2018-03-23 11:48:00,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2018-03-23 11:48:00,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 268. [2018-03-23 11:48:00,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2018-03-23 11:48:00,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 285 transitions. [2018-03-23 11:48:00,516 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 285 transitions. Word has length 69 [2018-03-23 11:48:00,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:48:00,517 INFO L459 AbstractCegarLoop]: Abstraction has 268 states and 285 transitions. [2018-03-23 11:48:00,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-03-23 11:48:00,517 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 285 transitions. [2018-03-23 11:48:00,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-03-23 11:48:00,518 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:48:00,518 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:48:00,518 INFO L408 AbstractCegarLoop]: === Iteration 17 === [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]=== [2018-03-23 11:48:00,518 INFO L82 PathProgramCache]: Analyzing trace with hash -136798844, now seen corresponding path program 1 times [2018-03-23 11:48:00,518 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:48:00,519 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:48:00,519 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:48:00,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:48:00,520 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:48:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:48:00,550 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:48:01,855 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:48:01,855 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-03-23 11:48:01,855 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-03-23 11:48:01,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:48:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:48:01,895 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-23 11:48:01,926 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:01,926 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:01,927 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 [2018-03-23 11:48:01,927 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:01,929 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:01,929 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-03-23 11:48:02,013 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-03-23 11:48:02,014 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 [2018-03-23 11:48:02,015 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:02,016 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:02,025 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-03-23 11:48:02,027 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 [2018-03-23 11:48:02,027 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:02,028 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:02,035 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:02,035 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:39, output treesize:31 [2018-03-23 11:48:02,347 WARN L1033 $PredicateComparison]: unable to prove that (exists ((__U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base Int) (__U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.offset Int) (__U_MULTI_flength_test___false_valid_memtrack_i__append_~head.offset Int)) (let ((.cse1 (+ __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.offset 1)) (.cse2 (+ __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.offset 5)) (.cse3 (+ __U_MULTI_flength_test___false_valid_memtrack_i__append_~head.offset 4))) (and (= |c_#memory_$Pointer$.base| (let ((.cse0 (store |c_old(#memory_$Pointer$.base)| |c___U_MULTI_flength_test___false_valid_memtrack_i__append_#in~head.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c___U_MULTI_flength_test___false_valid_memtrack_i__append_#in~head.base|) __U_MULTI_flength_test___false_valid_memtrack_i__append_~head.offset __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base) .cse3 __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base)))) (store .cse0 __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base (store (store (select .cse0 __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base) .cse1 0) .cse2 0)))) (= (select |c_old(#valid)| __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base) 0) (= (let ((.cse4 (store |c_old(#memory_$Pointer$.offset)| |c___U_MULTI_flength_test___false_valid_memtrack_i__append_#in~head.base| (store (store (select |c_old(#memory_$Pointer$.offset)| |c___U_MULTI_flength_test___false_valid_memtrack_i__append_#in~head.base|) __U_MULTI_flength_test___false_valid_memtrack_i__append_~head.offset __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.offset) .cse3 __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.offset)))) (store .cse4 __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base (store (store (select .cse4 __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base) .cse1 0) .cse2 0))) |c_#memory_$Pointer$.offset|)))) is different from true [2018-03-23 11:48:02,520 WARN L148 SmtUtils]: Spent 168ms on a formula simplification that was a NOOP. DAG size: 67 [2018-03-23 11:48:02,527 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:02,532 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:02,532 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-03-23 11:48:02,533 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:02,690 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 45 treesize of output 53 [2018-03-23 11:48:02,693 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-03-23 11:48:02,697 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:02,697 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 16 treesize of output 23 [2018-03-23 11:48:02,697 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:02,706 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:02,746 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 53 [2018-03-23 11:48:02,749 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 15 treesize of output 18 [2018-03-23 11:48:02,752 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:02,753 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 [2018-03-23 11:48:02,753 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:02,760 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:02,775 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:02,794 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:02,803 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 54 [2018-03-23 11:48:02,806 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 38 treesize of output 37 [2018-03-23 11:48:02,819 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:02,820 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 37 treesize of output 41 [2018-03-23 11:48:02,820 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:02,837 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:02,892 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 44 treesize of output 41 [2018-03-23 11:48:02,896 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:02,917 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 50 [2018-03-23 11:48:02,922 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:02,923 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:02,924 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:02,928 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 36 treesize of output 61 [2018-03-23 11:48:02,928 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:02,985 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:02,986 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:02,986 INFO L682 Elim1Store]: detected equality via solver [2018-03-23 11:48:02,989 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 30 treesize of output 47 [2018-03-23 11:48:02,990 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:03,061 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:03,065 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:03,086 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 30 treesize of output 55 [2018-03-23 11:48:03,086 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2018-03-23 11:48:03,132 INFO L267 ElimStorePlain]: Start of recursive call 13: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-03-23 11:48:03,177 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-03-23 11:48:03,256 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-03-23 11:48:03,387 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 54 [2018-03-23 11:48:03,394 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 37 [2018-03-23 11:48:03,400 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:03,401 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 37 treesize of output 41 [2018-03-23 11:48:03,401 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:03,410 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:03,430 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 44 treesize of output 41 [2018-03-23 11:48:03,433 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:03,447 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 50 [2018-03-23 11:48:03,451 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:03,451 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:03,452 INFO L682 Elim1Store]: detected equality via solver [2018-03-23 11:48:03,454 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 36 treesize of output 53 [2018-03-23 11:48:03,454 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:03,509 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:03,510 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:03,511 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:03,513 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 30 treesize of output 55 [2018-03-23 11:48:03,513 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:03,544 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:03,546 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:03,563 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 30 treesize of output 55 [2018-03-23 11:48:03,564 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 2 xjuncts. [2018-03-23 11:48:03,596 INFO L267 ElimStorePlain]: Start of recursive call 21: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-03-23 11:48:03,627 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-03-23 11:48:03,665 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-03-23 11:48:03,678 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 45 treesize of output 53 [2018-03-23 11:48:03,681 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-03-23 11:48:03,685 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:03,685 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2018-03-23 11:48:03,686 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:03,691 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:03,714 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 53 [2018-03-23 11:48:03,717 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 18 [2018-03-23 11:48:03,721 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:03,721 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 [2018-03-23 11:48:03,722 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:03,728 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:03,739 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:03,750 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:03,849 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 24 dim-0 vars, and 12 xjuncts. [2018-03-23 11:48:03,849 INFO L202 ElimStorePlain]: Needed 30 recursive calls to eliminate 7 variables, input treesize:124, output treesize:1404 [2018-03-23 11:48:24,003 WARN L151 SmtUtils]: Spent 13652ms on a formula simplification. DAG size of input: 327 DAG size of output 32 [2018-03-23 11:48:24,299 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 [2018-03-23 11:48:24,301 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:24,302 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 [2018-03-23 11:48:24,302 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:24,309 INFO L682 Elim1Store]: detected equality via solver [2018-03-23 11:48:24,310 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 [2018-03-23 11:48:24,310 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:24,313 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:24,327 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 [2018-03-23 11:48:24,329 INFO L682 Elim1Store]: detected equality via solver [2018-03-23 11:48:24,330 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 [2018-03-23 11:48:24,330 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:24,337 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:24,337 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 [2018-03-23 11:48:24,337 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:24,340 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:24,347 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:24,347 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 7 variables, input treesize:82, output treesize:7 [2018-03-23 11:48:24,447 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:48:24,468 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-23 11:48:24,469 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 21] total 41 [2018-03-23 11:48:24,469 INFO L442 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-03-23 11:48:24,469 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-03-23 11:48:24,469 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1424, Unknown=22, NotChecked=76, Total=1640 [2018-03-23 11:48:24,470 INFO L87 Difference]: Start difference. First operand 268 states and 285 transitions. Second operand 41 states. [2018-03-23 11:48:24,772 WARN L148 SmtUtils]: Spent 105ms on a formula simplification that was a NOOP. DAG size: 53 [2018-03-23 11:48:25,113 WARN L148 SmtUtils]: Spent 123ms on a formula simplification that was a NOOP. DAG size: 55 [2018-03-23 11:48:27,209 WARN L148 SmtUtils]: Spent 166ms on a formula simplification that was a NOOP. DAG size: 67 [2018-03-23 11:48:31,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:48:31,381 INFO L93 Difference]: Finished difference Result 470 states and 498 transitions. [2018-03-23 11:48:31,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-03-23 11:48:31,381 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 71 [2018-03-23 11:48:31,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:48:31,383 INFO L225 Difference]: With dead ends: 470 [2018-03-23 11:48:31,383 INFO L226 Difference]: Without dead ends: 342 [2018-03-23 11:48:31,384 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 55 SyntacticMatches, 3 SemanticMatches, 62 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 763 ImplicationChecksByTransitivity, 24.7s TimeCoverageRelationStatistics Valid=392, Invalid=3449, Unknown=69, NotChecked=122, Total=4032 [2018-03-23 11:48:31,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2018-03-23 11:48:31,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 262. [2018-03-23 11:48:31,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2018-03-23 11:48:31,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 277 transitions. [2018-03-23 11:48:31,399 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 277 transitions. Word has length 71 [2018-03-23 11:48:31,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:48:31,399 INFO L459 AbstractCegarLoop]: Abstraction has 262 states and 277 transitions. [2018-03-23 11:48:31,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-03-23 11:48:31,400 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 277 transitions. [2018-03-23 11:48:31,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-03-23 11:48:31,400 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:48:31,400 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-03-23 11:48:31,400 INFO L408 AbstractCegarLoop]: === Iteration 18 === [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]=== [2018-03-23 11:48:31,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1275392729, now seen corresponding path program 1 times [2018-03-23 11:48:31,401 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:48:31,401 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:48:31,401 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:48:31,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:48:31,402 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:48:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:48:31,415 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:48:31,460 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-03-23 11:48:31,460 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-03-23 11:48:31,460 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-03-23 11:48:31,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:48:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:48:31,516 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-23 11:48:31,569 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-03-23 11:48:31,591 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-23 11:48:31,591 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2018-03-23 11:48:31,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-23 11:48:31,592 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-23 11:48:31,592 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-03-23 11:48:31,592 INFO L87 Difference]: Start difference. First operand 262 states and 277 transitions. Second operand 7 states. [2018-03-23 11:48:31,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:48:31,633 INFO L93 Difference]: Finished difference Result 358 states and 381 transitions. [2018-03-23 11:48:31,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-23 11:48:31,633 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2018-03-23 11:48:31,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:48:31,634 INFO L225 Difference]: With dead ends: 358 [2018-03-23 11:48:31,634 INFO L226 Difference]: Without dead ends: 290 [2018-03-23 11:48:31,634 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-03-23 11:48:31,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2018-03-23 11:48:31,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 271. [2018-03-23 11:48:31,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2018-03-23 11:48:31,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 288 transitions. [2018-03-23 11:48:31,649 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 288 transitions. Word has length 77 [2018-03-23 11:48:31,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:48:31,650 INFO L459 AbstractCegarLoop]: Abstraction has 271 states and 288 transitions. [2018-03-23 11:48:31,650 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-23 11:48:31,650 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 288 transitions. [2018-03-23 11:48:31,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-03-23 11:48:31,650 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:48:31,650 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2018-03-23 11:48:31,651 INFO L408 AbstractCegarLoop]: === Iteration 19 === [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]=== [2018-03-23 11:48:31,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1599020303, now seen corresponding path program 1 times [2018-03-23 11:48:31,651 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:48:31,651 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:48:31,651 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:48:31,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:48:31,652 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:48:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:48:31,666 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:48:31,689 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-03-23 11:48:31,689 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:48:31,689 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-03-23 11:48:31,690 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-03-23 11:48:31,690 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-03-23 11:48:31,690 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-23 11:48:31,690 INFO L87 Difference]: Start difference. First operand 271 states and 288 transitions. Second operand 3 states. [2018-03-23 11:48:31,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:48:31,715 INFO L93 Difference]: Finished difference Result 473 states and 512 transitions. [2018-03-23 11:48:31,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-23 11:48:31,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2018-03-23 11:48:31,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:48:31,716 INFO L225 Difference]: With dead ends: 473 [2018-03-23 11:48:31,716 INFO L226 Difference]: Without dead ends: 273 [2018-03-23 11:48:31,717 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-23 11:48:31,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2018-03-23 11:48:31,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2018-03-23 11:48:31,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2018-03-23 11:48:31,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 290 transitions. [2018-03-23 11:48:31,732 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 290 transitions. Word has length 86 [2018-03-23 11:48:31,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:48:31,732 INFO L459 AbstractCegarLoop]: Abstraction has 273 states and 290 transitions. [2018-03-23 11:48:31,732 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-03-23 11:48:31,732 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 290 transitions. [2018-03-23 11:48:31,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-03-23 11:48:31,733 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:48:31,733 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2018-03-23 11:48:31,734 INFO L408 AbstractCegarLoop]: === Iteration 20 === [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]=== [2018-03-23 11:48:31,734 INFO L82 PathProgramCache]: Analyzing trace with hash 253438028, now seen corresponding path program 1 times [2018-03-23 11:48:31,734 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:48:31,734 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:48:31,734 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:48:31,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:48:31,735 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:48:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:48:31,751 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:48:32,586 WARN L151 SmtUtils]: Spent 125ms on a formula simplification. DAG size of input: 19 DAG size of output 17 [2018-03-23 11:48:32,660 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 23 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:48:32,660 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-03-23 11:48:32,660 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-03-23 11:48:32,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:48:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:48:32,709 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-23 11:48:32,730 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 [2018-03-23 11:48:32,730 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:32,733 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:32,733 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-03-23 11:48:32,918 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 [2018-03-23 11:48:32,920 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 8 treesize of output 7 [2018-03-23 11:48:32,921 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:32,923 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:32,930 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:32,930 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:27, output treesize:23 [2018-03-23 11:48:32,962 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 [2018-03-23 11:48:32,964 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:32,965 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-03-23 11:48:32,965 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:32,970 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:32,976 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:32,976 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:30, output treesize:26 [2018-03-23 11:48:33,023 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 40 [2018-03-23 11:48:33,026 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 31 treesize of output 30 [2018-03-23 11:48:33,026 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:33,050 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:33,053 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:33,067 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 4 case distinctions, treesize of input 26 treesize of output 53 [2018-03-23 11:48:33,068 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 4 xjuncts. [2018-03-23 11:48:33,106 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-03-23 11:48:33,131 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-03-23 11:48:33,132 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:39, output treesize:108 [2018-03-23 11:48:33,202 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:33,202 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 40 [2018-03-23 11:48:33,205 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 31 treesize of output 27 [2018-03-23 11:48:33,206 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:33,213 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:33,254 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 32 [2018-03-23 11:48:33,256 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:33,256 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:33,257 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:33,258 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:33,258 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 23 treesize of output 60 [2018-03-23 11:48:33,258 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:33,269 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:33,312 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 64 [2018-03-23 11:48:33,317 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:33,318 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 64 treesize of output 79 [2018-03-23 11:48:33,318 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:33,359 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:33,362 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:33,363 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:33,369 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 86 [2018-03-23 11:48:33,369 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-03-23 11:48:33,409 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-23 11:48:33,445 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 4 xjuncts. [2018-03-23 11:48:33,445 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 4 variables, input treesize:144, output treesize:168 [2018-03-23 11:48:33,520 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:33,521 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:33,521 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-03-23 11:48:33,522 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:33,558 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-23 11:48:33,558 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:188, output treesize:60 [2018-03-23 11:48:33,707 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 20 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:48:33,729 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-23 11:48:33,729 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 32 [2018-03-23 11:48:33,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-03-23 11:48:33,730 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-03-23 11:48:33,730 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=898, Unknown=0, NotChecked=0, Total=992 [2018-03-23 11:48:33,730 INFO L87 Difference]: Start difference. First operand 273 states and 290 transitions. Second operand 32 states. [2018-03-23 11:48:34,798 WARN L151 SmtUtils]: Spent 124ms on a formula simplification. DAG size of input: 78 DAG size of output 60 [2018-03-23 11:48:34,974 WARN L151 SmtUtils]: Spent 138ms on a formula simplification. DAG size of input: 95 DAG size of output 80 [2018-03-23 11:48:36,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:48:36,590 INFO L93 Difference]: Finished difference Result 515 states and 546 transitions. [2018-03-23 11:48:36,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-03-23 11:48:36,590 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 88 [2018-03-23 11:48:36,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:48:36,591 INFO L225 Difference]: With dead ends: 515 [2018-03-23 11:48:36,591 INFO L226 Difference]: Without dead ends: 288 [2018-03-23 11:48:36,593 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 73 SyntacticMatches, 5 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=554, Invalid=3868, Unknown=0, NotChecked=0, Total=4422 [2018-03-23 11:48:36,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2018-03-23 11:48:36,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 231. [2018-03-23 11:48:36,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2018-03-23 11:48:36,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 240 transitions. [2018-03-23 11:48:36,608 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 240 transitions. Word has length 88 [2018-03-23 11:48:36,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:48:36,608 INFO L459 AbstractCegarLoop]: Abstraction has 231 states and 240 transitions. [2018-03-23 11:48:36,609 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-03-23 11:48:36,609 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 240 transitions. [2018-03-23 11:48:36,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-03-23 11:48:36,610 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:48:36,610 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2018-03-23 11:48:36,610 INFO L408 AbstractCegarLoop]: === Iteration 21 === [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]=== [2018-03-23 11:48:36,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1922824354, now seen corresponding path program 1 times [2018-03-23 11:48:36,610 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:48:36,610 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:48:36,611 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:48:36,611 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:48:36,611 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:48:36,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:48:36,630 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:48:36,855 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 35 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-03-23 11:48:36,855 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-03-23 11:48:36,855 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-03-23 11:48:36,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:48:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:48:36,894 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-23 11:48:36,983 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:36,984 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-03-23 11:48:36,984 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:36,993 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:36,993 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:36,994 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 [2018-03-23 11:48:36,994 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:36,998 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 11:48:36,999 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-03-23 11:48:37,060 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 35 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-03-23 11:48:37,088 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-23 11:48:37,088 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2018-03-23 11:48:37,089 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-03-23 11:48:37,089 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-03-23 11:48:37,089 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2018-03-23 11:48:37,089 INFO L87 Difference]: Start difference. First operand 231 states and 240 transitions. Second operand 23 states. [2018-03-23 11:48:37,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:48:37,669 INFO L93 Difference]: Finished difference Result 296 states and 305 transitions. [2018-03-23 11:48:37,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-23 11:48:37,669 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 89 [2018-03-23 11:48:37,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:48:37,671 INFO L225 Difference]: With dead ends: 296 [2018-03-23 11:48:37,671 INFO L226 Difference]: Without dead ends: 290 [2018-03-23 11:48:37,671 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=677, Unknown=0, NotChecked=0, Total=812 [2018-03-23 11:48:37,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2018-03-23 11:48:37,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 263. [2018-03-23 11:48:37,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2018-03-23 11:48:37,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 274 transitions. [2018-03-23 11:48:37,689 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 274 transitions. Word has length 89 [2018-03-23 11:48:37,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:48:37,689 INFO L459 AbstractCegarLoop]: Abstraction has 263 states and 274 transitions. [2018-03-23 11:48:37,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-03-23 11:48:37,689 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 274 transitions. [2018-03-23 11:48:37,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-03-23 11:48:37,690 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:48:37,690 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:48:37,690 INFO L408 AbstractCegarLoop]: === Iteration 22 === [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]=== [2018-03-23 11:48:37,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1109850287, now seen corresponding path program 1 times [2018-03-23 11:48:37,691 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:48:37,691 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:48:37,691 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:48:37,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:48:37,692 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:48:37,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:48:37,719 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:48:38,222 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-03-23 11:48:38,222 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-03-23 11:48:38,222 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-03-23 11:48:38,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:48:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:48:38,269 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-23 11:48:38,352 WARN L1033 $PredicateComparison]: unable to prove that (exists ((__U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base Int)) (and (= |c_#length| (store |c_old(#length)| __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base 9)) (= (select |c_old(#valid)| __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base) 0))) is different from true [2018-03-23 11:48:38,363 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:38,365 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 [2018-03-23 11:48:38,365 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:38,373 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:38,374 INFO L700 Elim1Store]: detected not equals via solver [2018-03-23 11:48:38,375 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 [2018-03-23 11:48:38,375 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-23 11:48:38,379 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. [2018-03-23 11:48:38,380 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:20 [2018-03-23 11:48:38,467 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 [2018-03-23 11:48:38,503 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 29 [2018-03-23 11:48:38,504 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-03-23 11:48:38,516 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. [2018-03-23 11:48:38,517 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:25 [2018-03-23 11:48:38,624 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 29 [2018-03-23 11:48:38,624 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-03-23 11:48:38,638 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. [2018-03-23 11:48:38,638 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:25 [2018-03-23 11:48:38,749 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 16 not checked. [2018-03-23 11:48:38,772 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-23 11:48:38,772 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2018-03-23 11:48:38,772 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-03-23 11:48:38,772 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-03-23 11:48:38,773 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=726, Unknown=2, NotChecked=110, Total=930 [2018-03-23 11:48:38,773 INFO L87 Difference]: Start difference. First operand 263 states and 274 transitions. Second operand 31 states. [2018-03-23 11:48:40,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:48:40,028 INFO L93 Difference]: Finished difference Result 303 states and 314 transitions. [2018-03-23 11:48:40,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-03-23 11:48:40,031 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 90 [2018-03-23 11:48:40,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:48:40,032 INFO L225 Difference]: With dead ends: 303 [2018-03-23 11:48:40,032 INFO L226 Difference]: Without dead ends: 297 [2018-03-23 11:48:40,033 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 77 SyntacticMatches, 7 SemanticMatches, 42 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=226, Invalid=1502, Unknown=2, NotChecked=162, Total=1892 [2018-03-23 11:48:40,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2018-03-23 11:48:40,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 257. [2018-03-23 11:48:40,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2018-03-23 11:48:40,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 268 transitions. [2018-03-23 11:48:40,046 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 268 transitions. Word has length 90 [2018-03-23 11:48:40,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:48:40,046 INFO L459 AbstractCegarLoop]: Abstraction has 257 states and 268 transitions. [2018-03-23 11:48:40,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-03-23 11:48:40,046 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 268 transitions. [2018-03-23 11:48:40,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-03-23 11:48:40,047 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:48:40,047 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2018-03-23 11:48:40,047 INFO L408 AbstractCegarLoop]: === Iteration 23 === [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]=== [2018-03-23 11:48:40,047 INFO L82 PathProgramCache]: Analyzing trace with hash 177068770, now seen corresponding path program 1 times [2018-03-23 11:48:40,047 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:48:40,047 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:48:40,048 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:48:40,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:48:40,048 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:48:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:48:40,067 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:48:40,854 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-03-23 11:48:40,854 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-03-23 11:48:40,854 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-03-23 11:48:40,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:48:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:48:40,904 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-23 11:48:41,060 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_#valid_BEFORE_CALL_20| term size 17 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:270) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:243) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:445) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:283) 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.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:222) 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:406) 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) [2018-03-23 11:48:41,063 INFO L168 Benchmark]: Toolchain (without parser) took 90424.50 ms. Allocated memory was 305.1 MB in the beginning and 705.7 MB in the end (delta: 400.6 MB). Free memory was 243.8 MB in the beginning and 354.4 MB in the end (delta: -110.6 MB). Peak memory consumption was 289.9 MB. Max. memory is 5.3 GB. [2018-03-23 11:48:41,064 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 305.1 MB. Free memory is still 269.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-23 11:48:41,064 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.77 ms. Allocated memory is still 305.1 MB. Free memory was 243.8 MB in the beginning and 215.8 MB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 5.3 GB. [2018-03-23 11:48:41,064 INFO L168 Benchmark]: Boogie Preprocessor took 59.86 ms. Allocated memory is still 305.1 MB. Free memory was 215.8 MB in the beginning and 213.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-03-23 11:48:41,065 INFO L168 Benchmark]: RCFGBuilder took 770.45 ms. Allocated memory was 305.1 MB in the beginning and 467.7 MB in the end (delta: 162.5 MB). Free memory was 213.8 MB in the beginning and 384.0 MB in the end (delta: -170.2 MB). Peak memory consumption was 22.6 MB. Max. memory is 5.3 GB. [2018-03-23 11:48:41,065 INFO L168 Benchmark]: TraceAbstraction took 89233.29 ms. Allocated memory was 467.7 MB in the beginning and 705.7 MB in the end (delta: 238.0 MB). Free memory was 384.0 MB in the beginning and 354.4 MB in the end (delta: 29.6 MB). Peak memory consumption was 267.6 MB. Max. memory is 5.3 GB. [2018-03-23 11:48:41,067 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 305.1 MB. Free memory is still 269.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 356.77 ms. Allocated memory is still 305.1 MB. Free memory was 243.8 MB in the beginning and 215.8 MB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 59.86 ms. Allocated memory is still 305.1 MB. Free memory was 215.8 MB in the beginning and 213.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 770.45 ms. Allocated memory was 305.1 MB in the beginning and 467.7 MB in the end (delta: 162.5 MB). Free memory was 213.8 MB in the beginning and 384.0 MB in the end (delta: -170.2 MB). Peak memory consumption was 22.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 89233.29 ms. Allocated memory was 467.7 MB in the beginning and 705.7 MB in the end (delta: 238.0 MB). Free memory was 384.0 MB in the beginning and 354.4 MB in the end (delta: 29.6 MB). Peak memory consumption was 267.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: |v_#valid_BEFORE_CALL_20| term size 17 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: |v_#valid_BEFORE_CALL_20| term size 17: 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_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-23_11-48-41-073.csv Received shutdown request...